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Lennart Ljung: DIVA Publications

The following list of publications has been generated automatically from the DiVA database.


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Journal papers

2017
Qinghua Zhang, Lennart Ljung, "From structurally independent local LTI models to LPV model*", Automatica, 84: 232-235, 2017.
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Francesca Paola Carli, Tianshi Chen, Lennart Ljung, "Maximum Entropy Kernels for System Identification", IEEE Transactions on Automatic Control, 62(3): 1471-1477, 2017.
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2016
Gianluigi Pillonetto, Tianshi Chen, Alessandro Chiuso, Giuseppe De Nicolao, Lennart Ljung, "Regularized linear system identification using atomic, nuclear and kernel-based norms: The role of the stability constraint", Automatica, 69: 137-149, 2016.
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Tianshi Chen, Tohid Ardeshiri, Francesca P. Carli, Alessandro Chiuso, Lennart Ljung, Gianluigi Pillonetto, "Maximum entropy properties of discrete-time first-order stable spline kernel", Automatica, 66: 34-38, 2016.
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2015
Alf Isaksson, Johan Sjöberg, David Tornqvist, Lennart Ljung, Manon Kok, "Using horizon estimation and nonlinear optimization for grey-box identification", Journal of Process Control, 30: 69-79, 2015.
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2014
Tianshi Chen, Martin S. Andersen, Lennart Ljung, Alessandro Chiuso, Gianluigi Pillonetto, "System Identification Via Sparse Multiple Kernel-Based Regularization Using Sequential Convex Optimization Techniques", IEEE Transactions on Automatic Control, 59(11): 2933-2945, 2014.
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Henrik Ohlsson, Tianshi Chen, Sina Khoshfetratpakazad, Lennart Ljung, S. Shankar Sastry, "Scalable anomaly detection in large homogeneous populations", Automatica, 50(5): 1459-1465, 2014.
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Gianluigi Pillonetto, Francesco Dinuzzo, Tianshi Chen, Giuseppe De Nicolao, Lennart Ljung, "Kernel methods in system identification, machine learning and function estimation: A survey", Automatica, 50(3): 657-682, 2014.
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2013
Lennart Ljung, "Some Classical and Some New Ideas for Identification of Linear Systems", Journal of Control, Automation and Electrical Systems, 24(1-2): 3-10, 2013.
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Henrik Ohlsson, Lennart Ljung, "Identification of Switched Linear Regression Models using Sum-of-Norms Regularization", Automatica, 49(4): 1045-1050, 2013.
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Adrian Wills, Thomas Schön, Lennart Ljung, Brett Ninness, "Identification of Hammerstein-Wiener Models", Automatica, 49(1): 70-81, 2013.
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2012
Tianshi Chen, Henrik Ohlsson, Lennart Ljung, "On the Estimation of Transfer Functions, Regularizations and Gaussian Processes - Revisited", Automatica, 48(8): 1525-1535, 2012.
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Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, Stephen Boyd, "Smoothed State Estimates under Abrupt Changes using Sum-of-Norms Regularization", Automatica, 48(4): 595-605, 2012.
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2011
Lennart Ljung, Hakan Hjalmarsson, Henrik Ohlsson, "Four Encounters with System Identification", European Journal of Control, 17(5-6): 449-471, 2011.
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Christian Lyzell, Torkel Glad, Martin Enqvist, Lennart Ljung, "Difference Algebra and System Identification", Automatica, 47(9): 1896-1904, 2011.
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Xiao-Li Hu, Thomas Schön, Lennart Ljung, "A General Convergence Result for Particle Filtering", IEEE Transactions on Signal Processing, 59(7): 3424-3429, 2011.
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Tianshi Chen, Thomas Schön, Henrik Ohlsson, Lennart Ljung, "Decentralized Particle Filter with Arbitrary State Decomposition", IEEE Transactions on Signal Processing, 59(2): 465-478, 2011.
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2010
Henrik Ohlsson, Lennart Ljung, Stephen Boyd, "Segmentation of ARX-Models using Sum-of-Norms Regularization", Automatica, 46(6): 1107-1111, 2010.
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Lennart Ljung, "Perspectives on System Identification", Annual Reviews in Control, 34(1): 1-12, 2010.
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Lennart Ljung, Adrian Wills, "Issues in Sampling and Estimating Continuous-Time Models with Stochastic Disturbances", Automatica, 46(5): 925-931, 2010.
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2009
Jiandong Wang, Qinghua Zhang, Lennart Ljung, "Revisiting Hammerstein System Identification through the Two-Stage Algorithm for Bilinear Parameter Estimation", Automatica, 45(11): 2627-2633, 2009.
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Svante Björklund, Lennart Ljung, "An Improved Phase Method for Time-Delay Estimation", Automatica, 45(10): 2467-2470, 2009.
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Jonas Gillberg, Lennart Ljung, "Frequency-Domain Identification of Continuous-Time ARMA Models from Sampled Data", Automatica, 45(6): 1371-1378, 2009.
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2008
Ingela Lind, Lennart Ljung, "Regressor and Structure Selection in NARX Models using a Structured ANOVA Approach", Automatica, 44(2): 383-395, 2008.
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Anna Hagenblad, Lennart Ljung, Adrian Wills, "Maximum Likelihood Identification of Wiener Models", Automatica, 44(11): 2697-2705, 2008.
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Xiao-Li Hu, Thomas Schön, Lennart Ljung, "A Basic Convergence Result for Particle Filtering", IEEE Transactions on Signal Processing, 56(4): 1337-1348, 2008.
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2007
Markus Gerdin, Thomas Schön, Torkel Glad, Fredrik Gustafsson, Lennart Ljung, "On Parameter and State Estimation for Linear Differential-Algebraic Equations", Automatica, 43(3): 416-425, 2007.
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2006
Atsushi Fujimori, Lennart Ljung, "Parameter Estimation of Polytopic Models for a Linear Parameter Varying Aircraft System", Transactions of the Japan Society for Aeronautical and Space Sciences, 49(165): 129-136, 2006.
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Atsushi Fujimore, Lennart Ljung, "Model Identification of Linear Parameter Varying Aircraft Systems", Proceedings of the Institution of Mechanical Engineers. Part G, Journal of Aerospace Engineering, 220(4): 337-346, 2006.
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2005
Lennart Ljung, A. Vicino, "Guest editorial: Special issue on system identification", IEEE Transactions on Automatic Control, 50(10), 2005.
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S. Joe Qin, Weilu Lin, Lennart Ljung, "A Novel Subspace Identification Approach with Enforced Causal Models", Automatica, 41(12): 2043-2053, 2005.
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Martin Enqvist, Lennart Ljung, "Linear Approximations of Nonlinear FIR Systems for Separable Input Processes", Automatica, 41(3): 459-473, 2005.
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Ingela Lind, Lennart Ljung, "Regressor Selection with the Analysis of Variance Method", Automatica, 41(4): 693-700, 2005.
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Jacob Roll, Alexander Nazin, Lennart Ljung, "Nonlinear System Identification Via Direct Weight Optimization", Automatica, 41(3): 475-490, 2005.
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2004
Torkel Glad, Anders Helmersson, Lennart Ljung, "Robustness Guarantees for Linear Control Designs with an Estimated Nonlinear Model Error Model", International Journal of Robust and Nonlinear Control, 14(11): 959-970, 2004.
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Jacob Roll, Alberto Bemporad, Lennart Ljung, "Identification of Piecewise Affine Systems via Mixed-Integer Programming", Automatica, 40(1): 37-50, 2004.
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Liang-Liang Xie, Lennart Ljung, "Variance Expressions for Spectra Estimated Using Auto-Regressions", Journal of Econometrics, 118(1-2): 247-256, 2004.
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2003
Fredrik Tjernström, Lennart Ljung, "Variance Properties of a Two-Step ARX Estimation Procedure", European Journal of Control, 9(4): 422-430, 2003.
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Lennart Ljung, Wolfgang Reinelt, "Robust Control of Identified Models with Mixed Parametric and Non-Parametric Uncertainties", European Journal of Control, 9(4): 373-380, 2003.
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2002
Lennart Ljung, "Prediction Error Estimation Methods", Circuits, systems, and signal processing, 21(1): 11-21, 2002.
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Lennart Ljung, "Recursive Identification Algorithms", Circuits, systems, and signal processing, 21(1): 57-68, 2002.
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Fredrik Tjernström, Lennart Ljung, "Using the Bootstrap to Estimate the Variance in the Case of Undermodeling", IEEE Transactions on Automatic Control, 47(2): 395-398, 2002.
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Dietmar Bauer, Lennart Ljung, "Some Facts about the Choice of the Weighting Matrices in Larimore Type of Subspace Algorithms", Automatica, 38(5): 763-773, 2002.
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Wolfgang Reinelt, Andrea Garulli, Lennart Ljung, "Comparing Different Approaches to Model Error Modeling in Robust Identification", Automatica, 38(5): 787-803, 2002.
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Alexander V. Nazin, Lennart Ljung, "Asymptotically Optimal Smoothing of Averaged LMS Estimates for Regression Parameter Tracking", Automatica, 38(8): 1287-1293, 2002.
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Fredrik Tjernström, Lennart Ljung, "L2 Model Reduction and Variance Reduction", Automatica, 38(9): 1517-1530, 2002.
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Vincent Verdult, Lennart Ljung, Michel Verhaegen, "Identification of Composite Local Linear State-Space Models using a Projected Gradient Search", International Journal of Control, 75(16): 1385-1398, 2002.
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2001
Lennart Ljung, "Recursive Least Squares and Accelerated Convergence in Stochastic Approximation Schemes", International journal of adaptive control and signal processing (Print), 15(2): 169-178, 2001.
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Lennart Ljung, "Estimating Linear Time-Invariant Models of Nonlinear Time-Varying Systems", European Journal of Control, 7(2-3): 203-219, 2001.
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Michel Gevers, Lennart Ljung, Paul Van den Hof, "Asymptotic Variance Expressions for Closed-Loop Identification", Automatica, 37(5): 781-786, 2001.
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Liang-Liang Xie, Lennart Ljung, "Asymptotic Variance Expressions for Estimated Frequency Functions", IEEE Transactions on Automatic Control, 46(12): 1887-1899, 2001.
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2000
Lennart Ljung, Urban Forssell, "Identification of Unstable Systems using Output Error and Box-Jenkins Model Structures", IEEE Transactions on Automatic Control, 45(1): 131-147, 2000.
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Lennart Ljung, Urban Forssell, "A Projection Method for Closed-Loop Identification", IEEE Transactions on Automatic Control, 45(11): 2101-2106, 2000.
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Lennart Ljung, O.M. Boaghe, S.A. Billings, "Letters to the editor on the paper 'dynamic wavelet and equivalent models' by O.M. Boaghe and S.A. Billings", European Journal of Control, 6(3): 295-296, 2000.
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Peter Lindskog, Lennart Ljung, "Ensuring Monotonic Gain Characteristics in Estimated Models by Fuzzy Model Structures", Automatica, 36(2): 311-317, 2000.
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Urban Forssell, Lennart Ljung, "Some Results on Optimal Experiment Design", Automatica, 36(5): 749-756, 2000.
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Tomas McKelvey, Anders Stenman, Fredrik Gustafsson, Daniel E. Rivera, Lennart Ljung, "On Adaptive Smoothing of Empirical Transfer Function Estimates", Control Engineering Practice, 8(11): 1309-1315, 2000.
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1999
Niclas Bergman, Lennart Ljung, Fredrik Gustafsson, "Terrain Navigation using Bayesian Statistics", IEEE Control Systems, 19(3): 33-40, 1999.
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Lennart Ljung, Urban Forssell, "Closed-Loop Identification Revisited", Automatica, 35(7): 1215-1241, 1999.
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Urban Forssell, Lennart Ljung, "An Alternative Motivation for the Indirect Approach to Closed-Loop Identification", IEEE Transactions on Automatic Control, 44(11): 2206-2209, 1999.
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1998
Martin Holmberg, Fredrik Gustafsson, Gunnar Hörnsten, Fredrik Winquist, Lennart E. Nilsson, Lennart Ljung, Ingemar Lundström, "Bacteria classification based on feature extraction from sensor data", Biotechnology techniques, 12(4): 319-324, 1998.
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1997
Lennart Ljung, Lei Guo, "Classical Model Validation for Control Design Purposes", Mathematical and Computer Modelling of Dynamical Systems, 3(1): 27-42, 1997.
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Fredrik Gustafsson, Svante Gunnarsson, Lennart Ljung, "Shaping Frequency-Dependent Time Resolution when Estimating Spectral Properties with Parametric Methods", IEEE Transactions on Signal Processing, 45(4): 1025-1035, 1997.
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Lei Guo, Lennart Ljung, Guan-Jun Wang, "Necessary and Sufficient Conditions for Stability of LMS", IEEE Transactions on Automatic Control, 42(6): 761-770, 1997.
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Lei Guo, Lennart Ljung, "The Role of Model Validation for Assessing the Size of the Unmodeled Dynamics", IEEE Transactions on Automatic Control, 42(9): 1230-1240, 1997.
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1996
Lennart Ljung, Tomas McKelvey, "Subspace Identification from Closed Loop Data", Signal Processing, 52(2): 209-215, 1996.
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Lennart Ljung, Hüseyin Akçay, Tomas McKelvey, "Subspace-based Identification of Infinite-dimensional Multivariable Systems from Frequency-response Data", Automatica, 32(6): 885-902, 1996.
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Tomas McKelvey, Hüseyin Akçay, Lennart Ljung, "Subspace-Based Multivariable System Identification from Frequency Response Data", IEEE Transactions on Automatic Control, 41(7): 960-979, 1996.
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Lennart Ljung, Thomas Abrahamsson, Tomas McKelvey, "Vibration Data Analysis for a Commercial Aircraft", Automatica, 32(12): 1689-1700, 1996.
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Steve S. Niu, Lennart Ljung, Åke Björk, "Decomposition Methods for Solving Least-Squares Parameter Estimation", IEEE Transactions on Signal Processing, 44(11): 2847-2852, 1996.
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1995
Lei Guo, Lennart Ljung, "Performance Analysis of General Tracking Algorithms", IEEE Transactions on Automatic Control, 40(8): 1388-1402, 1995.
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Lei Guo, Lennart Ljung, "Exponential Stability of General Tracking Algorithms", IEEE Transactions on Automatic Control, 40(8): 1376-1387, 1995.
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Jonas Sjöberg, Qinghua Zhang, Lennart Ljung, Albert Benveniste, Bernard Deylon, Pierre-Yves Glorennec, Håkan Hjalmarsson, Anatoli Juditsky, "Nonlinear Black-box Modeling in System Identification: a Unified Overview", Automatica, 31(12): 1691-1724, 1995.
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Jonas Sjöberg, Lennart Ljung, "Overtraining, Regularization and Searching for Minimum with Application to Neural Nets", International Journal of Control, 62(6): 1391-1407, 1995.
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Peter Lindskog, Lennart Ljung, "Tools for Semiphysical Modelling", International journal of adaptive control and signal processing (Print), 9(6): 509-523, 1995.
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Anatoli Juditsky, Håkan Hjalmarsson, Albert Benveniste, Bernard Deylon, Lennart Ljung, Jonas Sjöberg, Qinghua Zhang, "Nonlinear Black-Box Models in System Identification: Mathematical Foundations", Automatica, 31(12): 1725--1750, 1995.
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1994
Lennart Ljung, Torkel Glad, "On Global Identifiability for Arbitrary Model Parametrizations", Automatica, 30(2): 265-276, 1994.
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Lennart Ljung, "System Identification in a MIC Perspective", Modeling, Identification and Control, 15(3): 153-159, 1994.
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1993
Bo Wahlberg, Lennart Ljung, Torsten Söderström, "On Sampling of Continuous Time Stochastic Processes", Control, Theory and Advanced Technology, 9(1): 99-112, 1993.
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Lei Guo, Lennart Ljung, Pierre Priouret, "Performance Analysis of the Forgetting Factor RLS Algorithms", International journal of adaptive control and signal processing (Print), 7(6): 525-237, 1993.
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1992
Lennart Ljung, "O Tochnosti Modeli V Identifikatsi Sistem", Tekhicheskaya Kibernetika, 6: 55-64, 1992.
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Lennart Ljung, "A Discussion of Model Accuracy in System Identification", International journal of adaptive control and signal processing (Print), 6(3): 161-171, 1992.
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Lennart Ljung, Bo Wahlberg, "Asymptotic Properties of the Least-Squares Method for Estimating Transfer Functions and Disturbance Spectra", Advances in Applied Probability, 24(2): 412-440, 1992.
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Lennart Ljung, Bo Wahlberg, "Hard Frequency-Domain Model Error Bounds from Least-Squares like Identification Techniques", IEEE Transactions on Automatic Control, 37(7): 900-912, 1992.
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Anders Skeppstedt, Lennart Ljung, Mille Millnert, "Construction of Composite Models from Observed Data", International Journal of Control, 55(1): 141-152, 1992.
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Håkan Hjalmarsson, Lennart Ljung, "Estimating Model Variance in the Case of Undermodeling", IEEE Transactions on Automatic Control, 37(7): 1004-1008, 1992.
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1991
Lennart Ljung, Pierre Priouret, "A Result of the Mean Square Error Obtained using General Tracking Algorithms", International journal of adaptive control and signal processing (Print), 5(4): 231-348, 1991.
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Lennart Ljung, Pierre Priouret, "Remarks on the Mean Square Tracking Error", International journal of adaptive control and signal processing (Print), 5(6): 395-403, 1991.
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Lennart Ljung, "Issues in System Identification", IEEE Control Systems, 11(1): 25-29, 1991.
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Krister Forsman, Lennart Ljung, Mille Millnert, Anders Skeppstedt, "Merging 'Reasoning' and Filtering in a Bayesian Framework - Some Sensitivity and Optimality Aspects", International journal of adaptive control and signal processing (Print), 5(2): 93-106, 1991.
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1990
Lennart Ljung, Svante Gunnarsson, "Adaptation and Tracking in System Identification: A Survey", Automatica, 26(1): 7-21, 1990.
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1989
Ke Wang, Lennart Ljung, "A Discussion of Adaptive Stabilization and Robust Adaptive Control", Systems & control letters (Print), 12(1): 53-56, 1989.
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Svante Gunnarsson, Lennart Ljung, "Frequency Domain Tracking Characteristics of Adaptive Algorithms", IEEE Transactions on Acoustics, Speech and Signal Processing, 37(7): 1072-1089, 1989.
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1988
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1987
Farhat Fnaiech, Lennart Ljung, "Recursive Identification of Bilinear Systems", International Journal of Control, 45(2): 453-470, 1987.
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1986
Lennart Ljung, "Error Propagation in Adaptation Algorithms with Poorly Exciting Signals", Annales des télécommunications, 41(5-6): 322-327, 1986.
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Bo Wahlberg, Lennart Ljung, "Design Variables for Bias Distribution in Transfer Function Estimation", IEEE Transactions on Automatic Control, 31(2): 134-144, 1986.
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Michel Gevers, Lennart Ljung, "Optimal Experimental Designs with Respect to the Intended Model Application", Automatica, 22(5): 543-554, 1986.
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1985
Lennart Ljung, Zhen-Dong Yuan, "Asymptotic Properties of Black-Box Identification of Transfer Functions", IEEE Transactions on Automatic Control, 30(6): 514-530, 1985.
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Stefan Ljung, Lennart Ljung, "Error Propagation Properties of Recursive Least Squares Adaptation Algorithms", Automatica, 21(2): 157-167, 1985.
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Göte Solbrand, Anders Ahlén, Lennart Ljung, "Recursive Methods for Off-Line Identification", International Journal of Control, 41(1): 177-191, 1985.
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Zhen-Dong Yuan, Lennart Ljung, "Uprejudiced Optimal Open Loop Input Design for Identification of Transfer Functions", Automatica, 21(6): 697-708, 1985.
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Lennart Ljung, "On the Estimation of Transfer Functions", Automatica, 21(6): 677-696, 1985.
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Thomas Kailath, Lennart Ljung, "Explicit Strict Sense State-Space Realizations of Nonstationary Processes", International Journal of Control, 42(5): 971-988, 1985.
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Lennart Ljung, "Asymptotic Variance Expressions for Identified Black-Box Transfer Function Models", IEEE Transactions on Automatic Control, 30(9): 834-844, 1985.
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Eva Trulsson, Lennart Ljung, "Adaptive Control based on Explicit Criterion Minimization", Automatica, 21(4): 385-399, 1985.
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1984
Lennart Ljung, "Advanced Process Control (in Swedish)", Svensk Papperstidning, 27(12): 14-17, 1984.
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Lennart Ljung, "Analysis of Stochastic Gradient Algorithms for Linear Regression Problems", IEEE Transactions on Information Theory, 30(2): 151-160, 1984.
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1983
Thomas Kailath, Lennart Ljung, Martin Morf, "Recursive Input-Output and State Space Solutions for Continuous-Time Linear Estimation Problems", IEEE Transactions on Automatic Control, 28(9): 897-906, 1983.
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1982
Thomas Kailath, Lennart Ljung, "Two Filter Smooting Formulae by Diagonalization of the Hamiltonian Equations", International Journal of Control, 36(4): 663-673, 1982.
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A J M van Overbeek, Lennart Ljung, "On-Line Structure Selection for Multivariable State-Space Models", Automatica, 18(5): 529-543, 1982.
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Lennart Ljung, "Aspects on the System Identification Problem", Signal Processing, 4(5-6): 445-456, 1982.
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Stefan Ljung, Lennart Ljung, "Fast Numerical Solution of Fredholm Integral Equations with Stationary Kernels", BIT Numerical Mathematics, 22(1): 54-72, 1982.
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1981
Lennart Ljung, "Analysis of a general Recursive Prediction Error Identification Algorithm", Automatica, 17(1): 89-99, 1981.
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Lennart Ljung, Keith Glover, "Frequency Domain versus Time Domain Methods in System Identification", Automatica, 17(1): 71-86, 1981.
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1980
Lennart Ljung, Peter E. Caines, "Asymptotic Normality of Prediction Error Estimators for Approximate System Models", Stochastics, 3(1-4): 29-46, 1980.
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1979
Thomas Kailath, Bernard Levy, Lennart Ljung, Martin Morf, "The Factorization and Representation of Operators in the Algebra Generated by Toeplitz Operators", SIAM Journal on Applied Mathematics, 37(3): 467-484, 1979.
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Benjaming Friedlander, Martin Morf, Thomas Kailath, Lennart Ljung, "New Inversion Formulas for Matrices Classified in Terms of their Distance from Toeplitz Matrices", Linear Algebra and its Applications, 27: 31-60, 1979.
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Bernard Levy, Thomas Kailath, Lennart Ljung, Martin Morf, "Fast Time-Invariant Implementations for Linear Least Squares Smoothing Filters", IEEE Transactions on Automatic Control, 24(5): 770-775, 1979.
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Lennart Ljung, "Asymptotic Behaviour of the Extended Kalaman Filter as a Parameter Estimator for Linear Systems", IEEE Transactions on Automatic Control, 24(1): 36-50, 1979.
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1978
Lennart Ljung, "Convergence Analysis of Parametric Identification Methods", IEEE Transactions on Automatic Control, 23(5): 770-783, 1978.
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Lennart Ljung, David Falconer, "Application of Fast Kalman Estimation to Adaptive Equalization", IEEE Transactions on Communications, 26(10): 1439-1446, 1978.
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B Friedlander, Thomas Kailath, Martin Morf, Lennart Ljung, "Extended Levinson and Chandrasekhar Equations for General Discrete-Time Linear Estimation Problems", IEEE Transactions on Automatic Control, 23(4): 653-659, 1978.
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Thomas Kailath, Bernard C. Levy, Lennart Ljung, Martin Morf, "Fast Time-Invariant Implementations of Gaussian Signal Detectors", IEEE Transactions on Information Theory, 24(4): 469-477, 1978.
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Lennart Ljung, "Strong Convergence of a Stochastic Approximation Algorithm", Annals of Statistics, 6(3): 680-696, 1978.
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Torsten Söderström, Lennart Ljung, Ivar Gustavsson, "A Theoretical Analysis of Recursive Identification", Automatica, 14(3): 231-244, 1978.
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Lennart Ljung, "Convergence of an Adaptive Filter Algorithm", International Journal of Control, 27(5): 673-693, 1978.
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Lennart Ljung, Martin Morf, David Falconer, "Fast Calculation of Gain Matrices for Recursive Estimation Schemes", International Journal of Control, 27(1): 1-19, 1978.
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1977
Karl Johan Åström, U Borisson, Lennart Ljung, Björn Wittenmark, "Theory and Applications of Self Tuning Regulators", Automatica, 13(5): 457-476, 1977.
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Lennart Ljung, "On Positive Real Transfer Functions and the Convergence of some Recursive Schemes", IEEE Transactions on Automatic Control, 22(4): 539-551, 1977.
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Lennart Ljung, "Analysis of Recursive Stochastic Algorithms", IEEE Transactions on Automatic Control, 22(4): 551-575, 1977.
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Lennart Ljung, Thomas Kailath, "Efficient Change of Initial Conditions , Dual Chandrasekhar Equations, and some Applications", IEEE Transactions on Automatic Control, 22(3): 443-447, 1977.
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Ivar Gustavsson, Lennart Ljung, Torsten Söderström, "Identification of Processes in Closed Loop-Identifiability and Accuracy Aspects", Automatica, 13(1): 59-75, 1977.
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1976
Torsten Söderström, Lennart Ljung, Ivar Gustavsson, "Identifiability Conditions for Linear Multivariable Systems Operating under Feedback", IEEE Transactions on Automatic Control, 21(6): 837-840, 1976.
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Lennart Ljung, "Consistency of the Least Squares Identification Method", IEEE Transactions on Automatic Control, 21(5): 779-781, 1976.
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Lennart Ljung, Thomas Kailath, "Backwards Markovian Models for Second Order Stochastic Processes", IEEE Transactions on Information Theory, 22(4): 488-491, 1976.
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Books

2010
Fredrik Gustafsson, Lennart Ljung, Mille Millnert, "Signal processing", Studentlitteratur, Lund, 2010.
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1999
Lennart Ljung, "System identification: theory for the user", Prentice-Hall, Upper Saddle River, NJ, USA, 1999.
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1994
Lennart Ljung, Torkel Glad, "Modeling of Dynamic Systems", PTR Prentice Hall, Englewood Cliffs, 1994.
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1992
Lennart Ljung, Georg Pflug, Harro Walk, "Stochastic Approximation and Optimization of Random Systems", Birkhäuser Verlag, Basel ; Boston, No. 17, 1992.
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1987
Lennart Ljung, "System identification: theory for the user", Prentice-Hall, Englewood Cliffs, NJ, USA, 1987.
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1983
Lennart Ljung, Torsten Söderström, "Theory and Practice of Recursive Identification", MIT Press, Cambridge, No. 4, 1983.
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1981
Lennart Ljung, "Reglerteori: moderna analys- och syntesmetoder", Studentlitteratur, Lund, 1981.
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Torkel Glad, Lennart Ljung, "Reglerteknik: grundläggande teori", Studentlitteratur, Lund, 1981.
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Book chapters

2010
Adrian Wills, Lennart Ljung, "Wiener System Identification Using the Maximum Likelihood Method", Block-Oriented Nonlinear System Identification, Lecture Notes In Control and Information Sciences, No. 404, 89-110, 2010.
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Henrik Ohlsson, Lennart Ljung, "Weight Determination by Manifold Regularization", Distributed Decision-Making and Control, Lecture Notes in Control and Information Sciences, No. 417, 195-214, 2010.
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Henrik Ohlsson, Lennart Ljung, "Semi-Supervised Regression and System Identification", Three Decades of Progress in Systems and Control, 343-360, 2010.
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2007
Markus Gerdin, Torkel Glad, Lennart Ljung, "Global Identifiability of Complex Models, Constructed from Simple Submodels", Modeling, Estimation and Control, Lecture Notes in Control and Information Sciences, No. 364, 123-133, 2007.
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2006
Lennart Ljung, "Frequency Domain versus Time Domain Methods in System Identification - Revisited", Control of Uncertain Systems, Lecture Notes in Control and Information Science, No. 329, 277-291, 2006.
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2004
Lennart Ljung, "Practical Issues of System Identification", Control Systems, Robotics and Automation, 345-368, 2004.
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2003
Lennart Ljung, "Linear System Identification as Curve Fitting", Directions in Mathematical Systems Theory and Optimization, Lecture Notes in Control and Information Sciences, No. 286, 203-215, 2003.
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1999
Lennart Ljung, "System identification", Wiley encyclopedia of electrical and electronics engineering. Vol. 21, Su-Th, 263-282, 1999.
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1998
Lennart Ljung, "System Identification", Signal Analysis and Prediction, 163-174, 1998.
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1995
Lennart Ljung, "Building Models from Frequency Domain Data", Adaptive Control, Filtering and Signal Processing, The IMA Volumes in Mathematics and its Applications, No. 74, 229-240, 1995.
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Lennart Ljung, Jonas Sjöberg, Håkan Hjalmarsson, "On Neural Network Model Structures in System Identification", Proceedings from the NATO Advanced Summer Institute "From Identification to Learning", 162-195, 1995.
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1993
Lennart Ljung, "General Structure of Adaptive Algorithms: Adaptation and Tracking", Adaptive System Identification and Signal Processing Algorithms, 58-83, 1993.
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Lennart Ljung, "Identification of Linear Systems", CAD for Control Systems, 147-165, 1993.
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1987
Lennart Ljung, "Stochastic Adaptive Control Algorithms Convergence Analysis: Ordinary Differential Equation Approach", Systems and Control Encyclopedia, 4602-4603, 1987.
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Lennart Ljung, "Recursive Stochastic Algorithms: Ordinary Differential Equation Method", Systems and Control Encyclopedia, 3991-3994, 1987.
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Lennart Ljung, "Identification: Time-Domain Methods", Systems and Control Encyclopedia, 2314-2320, 1987.
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Lennart Ljung, "Identification: Recursive Methods", Systems and Control Encyclopedia, 2310-2314, 1987.
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Lennart Ljung, "Identification: Maximum Likelihood Method", Systems and Control Encyclopedia, 2284-2287, 1987.
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Lennart Ljung, "Identification: Least Squares Method", Systems and Control Encyclopedia, 2278-2284, 1987.
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Lennart Ljung, "Identification: Basic Problem", Systems and Control Encyclopedia, 2239-2245, 1987.
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Lennart Ljung, "Identification: Asymptotic Theory", Systems and Control Encyclopedia, 2235-2239, 1987.
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Lennart Ljung, "Generalized Least Squares Method", Systems and Control Encyclopedia, 2005-, 1987.
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Lennart Ljung, "Extended Least Squares Method", Systems and Control Encyclopedia, 1581-, 1987.
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Lennart Ljung, "Extended Kalman Filter", Systems and Control Encyclopedia, 1581-, 1987.
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Lennart Ljung, "Adaptive Controllers: Convergence Analysis", Systems and Control Encyclopedia, 55-60, 1987.
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Lennart Ljung, "Adaptive Control: Positive-Real Condition", Systems and Control Encyclopedia, 51-54, 1987.
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Lennart Ljung, "Adaptation using Recursive Parameter Estimation", Advances in Statistical Signal Processing, Vol. 1, 287-327, 1987.
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Lennart Ljung, "Parametric Methods for Identification of Transfer Functions of Linear Systems", System identification and adaptive control. Part 2 of 3, Control and dynamic systems, No. 26, 87-118, 1987.
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1985
Lennart Ljung, "Estimation of Parameters in Dynamical Systems", Handbook of Statistics, Time Series in the Time Domain, 189-211, 1985.
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Lennart Ljung, "System Identification", Uncertainty and Control, Lecture Notes in Control and Information Sciences, No. 70, 48-83, 1985.
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Lennart Ljung, "Recursive Techniques for Identifying Dynamic Systems", On-line process simulation techniques in industrial control, 1-10, 1985.
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1981
Ivar Gustavsson, Lennart Ljung, Torsten Söderström, "Choice and Effect of Different Feedback Configurations", Trends and Progress in System Identification, IFAC Series for Graduates, Research Workers & Practising Engineers, No. 1, 367-388, 1981.
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1978
Thomas Kailath, Lennart Ljung, Martin Morf, "Generalized Krein-Levinson Equations for Efficient Calculation of Fredholm Resolvents of Non-Displacement Kernels", Topics in Functional Analysis, Advances in mathematics. Supplementary studies, No. 3, 169-184, 1978.
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1977
Lennart Ljung, "Convergence Analysis of Recursive, Stochastic Algorithms", Analyse et contrôle de systèmes, Séminaires IRIA, 127-133, 1977.
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1976
Lennart Ljung, "On the Consistency of Prediction Error Identification Methods", System identification, Mathematics in Science and Engineering, No. 126, 121-164, 1976.
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Lennart Ljung, "On Consistency and Identifiability", Stochastic Systems, Mathematical Programming Studies, No. 5, 169-190, 1976.
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Conference papers

2016
Tianshi Chen, Gianluigi Pillonetto, Alessandro Chiuso, Lennart Ljung, "Continuous-time DC kernel - a stable generalized first order spline kernel", 2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC), IEEE Conference on Decision and Control, 4647-4652, 2016.
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Valentin Pascu, Hugues Garnier, Lennart Ljung, Alexandre Janot, "Developments towards Formalizing a Benchmark for Continuous-time Model Identification", 2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC), IEEE Conference on Decision and Control, 7171-7176, 2016.
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2015
Wei Pan, Ye Yuan, Lennart Ljung, Jorge Goncalves, Guy-Bart Stan, "Identifying Biochemical Reaction Networks From Heterogeneous Datasets", 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 2525-2530, 2015.
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Tianshi Chen, Gianluigi Pillonetto, Alessandro Chiuso, Lennart Ljung, "Spectral analysis of the DC kernel for regularized system identification", 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 4017-4022, 2015.
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2013
Sina Khoshfetrat Pakazad, Henrik Ohlsson, Lennart Ljung, "Sparse Control Using Sum-of-norms Regularized Model Predictive Control", 52nd IEEE Conference on Decision and Control (CDC 2013), 10-13 December 2013, Firenze, Italy, 2013.
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Gianluigi Pillonetto, Tianshi Chen, Lennart Ljung, "Kernel-based model order selection for linear system identification", Proc.  11th IFAC International Workshop on Adaptation and Learning in Control and Signal Processing, ALCOSP13, 257-262, 2013.
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Lennart Ljung, Tianshi Chen, "What can regularization offer for estimation of dynamical systems?", 11th  IFAC International Workshop on Adaptation and Learning in Control and Signal Processing, ALCOSP13, 1-8, 2013.
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Lennart Ljung, Tianshi Chen, "Convexity Issues in System Identification", 10th IEEE International Conference on Control & Automation, 1-9, 2013.
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2012
Tianshi Chen, Lennart Ljung, Martin Andersen, Alessandro Chiuso, Francesca Carli, Gianluigi Pillonetto, "Sparse multiple kernels for impulse response estimation with majorization minimization algorithms", Decision and Control (CDC), 2012, 1500-1505, 2012.
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Tianshi Chen, Lennart Ljung, Yanlong Zhao, "Impulse Response Estimation with Binary Measurements: A Regularized FIR Model", Proceedings of the 16th IFAC Symposium on System Identification, 113-118, 2012.
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Lennart Ljung, Rajiv Singh, "Version 8 of the MatLab System Identification Toolbox", Proceedings of the 16th IFAC Symposium on Sytem Identification, 1826-1831, 2012.
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Henrik Ohlsson, Tianshi Chen, Sina Khoshfetrat Pakazad, Lennart Ljung, Shankar Sastry, "Distributed Change Detection", Proceedings of the 16th IFAC Symposium on System Identification, 77-82, 2012.
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2011
Diego S. Cassasco, Lennart Ljung, Graham C. Goodwin, Juan C. Agüero, "On the Accuracy of Parameter Estimation for Continuous Time Nonlinear Systems from Sampled Data", Proceedings of the 50th IEEE Conference on Decision and Control, 4308-4311, 2011.
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Henrik Ohlsson, Lennart Ljung, "A Convex Approach to Subspace Clustering", Proceedings of the 50th IEEE Conference on Decision and Control, 1467-1472, 2011.
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Tianshi Chen, Henrik Ohlsson, Graham C. Goodwin, Lennart Ljung, "Kernel Selection in Linear System Identification: Part II: A Classical Perspective", Proceedings of the 50th IEEE Conference on Decision and Control, 4326-4331, 2011.
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Tillmann Falck, Henrik Ohlsson, Lennart Ljung, Johan A.K. Suykens, Bart De Moor, "Segmentation of Time Series from Nonlinear Dynamical Systems", Proceedings of the 18th IFAC World Congress, 13209-13214, 2011.
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Adrian Wills, Thomas Schön, Lennart Ljung, Brett Ninness, "Blind Identification of Wiener Models", Proceedings of the 18th IFAC World Congress, 5597-5602, 2011.
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Henrik Ohlsson, Lennart Ljung, "Identification of Piecewise Affine Systems Using Sum-of-Norms Regularization", Proceedings of the 18th IFAC World Congress, 6640-6645, 2011.
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Fredrik Lindsten, Henrik Ohlsson, Lennart Ljung, "Clustering using Sum-of-Norms Regularization: With Application to Particle Filter Output Computation", Proceedings of the 2011 IEEE Statistical Signal Processing Workshop, 201-204, 2011.
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2010
Lennart Ljung, "Approaches to Identification of Nonlinear Systems", Proceedings of the 29th Chinese Control Conference, 2010.
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Tianshi Chen, Thomas Schön, Henrik Ohlsson, Lennart Ljung, "Decentralization of Particle Filters Using Arbitrary State Decomposition", Proceedings of the 49th IEEE Conference on Decision and Control, 7383-7388, 2010.
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Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, Stephen Boyd, "State Smoothing by Sum-of-Norms Regularization", Proceedings of the 49th Conference on Decision and Control, 2880-2885, 2010.
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Tianshi Chen, Henrik Ohlsson, Lennart Ljung, "On the Estimation of Transfer Functions, Regularizations and Gaussian Processes – Revisited", Proceedings of the 18th IFAC World Congress, 2303-2308, 2010.
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Henrik Ohlsson, Fredrik Gustafsson, Lennart Ljung, Stephen Boyd, "Trajectory Generation Using Sum-of-Norms Regularization", Proceedings of the 49th IEEE Conference on Decision and Control, 540-545, 2010.
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2009
Alf Isaksson, David Törnqvist, Johan Sjöberg, Lennart Ljung, "Grey-Box Identification Based on Horizon Estimation and Nonlinear Optimization", Proceedings of the 41st ISCIE International Symposium on Stochastic Systems, 1-6, 2009.
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Lennart Ljung, Henrik Ohlsson, Maite Bauwens, "On Manifolds, Climate Reconstruction and Bivalve Shells", Proceedings of the 48th IEEE Conference on Decision and Control, 5738-5743, 2009.
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Henrik Ohlsson, Lennart Ljung, "Gray-Box Identification for High-Dimensional Manifold Constrained Regression", Proceedings of the 15th IFAC Symposium on System Identification, 1292-1297, 2009.
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Lennart Ljung, Qinghua Zhang, Jiandong Wang, "Optimality Analysis of the Two-Stage Algorithm Hammerstein System Identification", Proceedings of the 15th IFAC Symposium on System Identification, 320-325, 2009.
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Lennart Ljung, Johan Schoukens, Johan Suykens, "Wiener-Hammerstein Benchmark", Proceedings of the 15th IFAC Symposium on System Identification, 2009.
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Lennart Ljung, Qinghua Zhang, Rajiv Singh, Peter Lindskog, Anatoli Iouditski, "Developments in the Mathworks System Identification Toolbox", Proceedings of the 15th IFAC Symposium on System Identification, 522-527, 2009.
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Lennart Ljung, "Experiments with Identification of Continuous Time Models", Proceedings of the 15th IFAC Symposium on System Identification, 1175-1180, 2009.
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Lennart Ljung, "Minimax Confidence Intervals for Pointwise Nonparametric Regression Estimation", Proceedings of the 15th IFAC Symposium on System Identification, 2009.
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Roger Larsson, Zoran Sjanic, Martin Enqvist, Lennart Ljung, "Direct Prediction-Error Identification of Unstable Nonlinear Systems Applied to Flight Test Data", Proceedings of the 15th IFAC Symposium on System Identification, IFAC-PapersOnLine, Vol. 42(10), 144-149, 2009.
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Christian Lyzell, Martin Enqvist, Lennart Ljung, "Handling Certain Structure Information in Subspace Identification", Proceedings of the 15th IFAC Symposium on System Identification, IFAC-PapersOnLine, Vol. 42(10), 90-95, 2009.
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Christian Lyzell, Torkel Glad, Martin Enqvist, Lennart Ljung, "Identification Aspects of Ritt's Algorithm for Discrete-Time Systems", Proceedings of the 15th IFAC Symposium on System Identification, IFAC-PapersOnLine, Vol. 42(10), 681-686, 2009.
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2008
Christian Lyzell, Jacob Roll, Lennart Ljung, "The Use of Nonnegative Garrote for Order Selection of ARX Models", Proceedings of the 47th IEEE Conferance on Decision and Control, 1974-1979, 2008.
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Inger Klein, Lennart Ljung, Svante Gunnarsson, Lars Nielsen, "Framstående utbildningsmiljö - Hur blir man det?", Nätverket Ingenjörsutbildningarnas Utvecklingskonferens 2008, 2008.
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Lennart Ljung, Anna Hagenblad, Adrian Wills, "Maximum Likelihood Identification of Wiener Models", Proceedings of the 17th IFAC World Congress, 2714-2719, 2008.
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Lennart Ljung, "Perspectives on System Identification", Proceedings of the 17th IFAC World Congress, 7172-7184, 2008.
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Henrik Ohlsson, Jacob Roll, Anders Brun, Hans Knutsson, Mats Andersson, Lennart Ljung, "Direct Weight Optimization Applied to Discontinuous Functions", 47th IEEE Conference on Decision and Control, 2008. CDC 2008, IEEE Conference on Decision and Control. Proceedings, 117-122, 2008.
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Lennart Ljung, Adrian Wills, "Issues in Sampling and Estimating Continuous-Time Models with Stochastic Disturbances", Proceedings of the 17th IFAC World Congress, 14360-14365, 2008.
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Xiao-Li Hu, Lennart Ljung, "New Convergence Results for Least Squares Identification Algorithm", Proceedings of the 17th IFAC World Congress, 5030-5035, 2008.
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Henrik Ohlsson, Jacob Roll, Lennart Ljung, "Manifold-Constrained Regressors in System Identification", Proceedings of the 47th IEEE Conference on Decision and Control, 1364-1369, 2008.
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Alexander Nazin, Jacob Roll, Lennart Ljung, Ion Grama, "Direct Weight Optimization in Statistical Estimation and System Identification", Proceedings of the 7th International Conference on System Identification and Control Problems, 2008.
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2007
Henrik Ohlsson, Jacob Roll, Torkel Glad, Lennart Ljung, "Using Manifold Learning for Nonlinear System Identification", Proceedings of the 7th IFAC Symposium on Nonlinear Control Systems, 170-175, 2007.
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Alexander Nazin, Jacob Roll, Lennart Ljung, "Direct Weight Optimization in Nonlinear Function Estimation and System Identification", Proceedings of the 6th International Conference on System Identification and Control Problems (SICPRO '07), 2007.
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Xiao-Li Hu, Thomas Schön, Lennart Ljung, "A Robust Particle Filter for State Estimation - with Convergence Results", Proceedings of the 46th IEEE Conference on Decision and Control, 312-317, 2007.
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Xiao-Li Hu, Thomas Schön, Lennart Ljung, "A Basic Convergence Result for Particle Filtering", Proceedings of the 7th IFAC Symposium on Nonlinear Control Systems, 288-293, 2007.
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2006
Lennart Ljung, Jonas Gillberg, "Frequency-Domain Identification of Continuous-Time Output Error Models from Non-Uniformly Sampled Data", Proceedings of the 14th IFAC Symposium on System Identification, 214-218, 2006.
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Lennart Ljung, Qinghua Zhang, Anatoli Iouditski, "Identification of Wiener System with Monotonous Nonlinearity", Proceedings of the 14th IFAC Symposium on System Identification, 166-171, 2006.
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Alexander Nazin, Jacob Roll, Lennart Ljung, "Direct Weight Optimization for Approximately Linear Functions: Optimality and Design", Proceedings of the 14th IFAC Symposium on System Identification, 796-801, 2006.
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Jacob Roll, Ingela Lind, Lennart Ljung, "Connections Between Optimisation-Based Regressor Selection and Analysis of Variance", Proceedings of the 45th IEEE Conference on Decision and Control, 4907-4914, 2006.
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Jacob Roll, Ingela Lind, Lennart Ljung, "Connections Between Optimisation-Based Regressor Selection and Analysis of Variance", Proceedings of Reglermöte 2006, 2006.
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Lennart Ljung, Qinghua Zhang, Peter Lindskog, Anatoli Iouditski, Rajiv Singh, "An Integrated System Identification Toolbox for Linear and Nonlinear Models", Proceedings of the 14th IFAC Symposium on System Identification, 931-936, 2006.
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Lennart Ljung, "Some Aspects on Nonlinear System Identification", Proceedings of the 14th IFAC Symposium on System Identification, 553-564, 2006.
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Lennart Ljung, "Identification of Nonlinear Systems. Plenary Paper", Proceedings of the 9th International Conference on Control, Automation, Robotics and Vision, 2006.
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2005
Lennart Ljung, Weilu Lin, S. Joe Qin, "Comparison of Subspace Identification Methods for Systems Operating in Closed Loop", Proceedings of the 16th IFAC World Congress, 82-82, 2005.
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Lennart Ljung, Jonas Gillberg, "Frequency-Domain Identification of Continuous-Time Output Error Models from Sampled Data", Proceedings of 16th IFAC World Congress, 15-15, 2005.
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Jonas Gillberg, Lennart Ljung, "Frequency-Domain Identification of Continuous-Time ARMA Models from Sampled Data", Proceedings of 16th IFAC World Congress, 37-37, 2005.
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Lennart Ljung, David Lindgren, "Nonlinear Dynamics Identified by Multi-Index Models", Proceedings of the 16th IFAC World Congress, 32-32, 2005.
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Jimmy Johansson, David Lindgren, Matthew Cooper, Lennart Ljung, "Interactive Visualization as a Tool for Analysing Time-Varying and Non-Linear Systems", Proceedings of the 16th IFAC World Congress, 95-95, 2005.
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Torkel Glad, Anders Helmersson, Martin Enqvist, Lennart Ljung, "Controllers for Amplitude Limited Model Error Models", Proceedings of the 16th IFAC World Congress, IFAC-PapersOnLine, Vol. 38(1), 662-662, 2005.
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Jacob Roll, Martin Enqvist, Lennart Ljung, "Consistent Nonparametric Estimation of NARX Systems Using Convex Optimization", Proceedings of the 44th IEEE Conference on Decision and Control and European Control Conference, 3129-3134, 2005.
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Markus Gerdin, Torkel Glad, Lennart Ljung, "Well-Posedness of Filtering Problems for Stochastic Linear DAE Models", Proceedings of the 44th IEEE Conference on Decision and Control and European Control Conference, 350-355, 2005.
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Jacob Roll, Alexander Nazin, Lennart Ljung, "A General Direct Weight Optimization Framework for Nonlinear System Identification", Proceedings of the 16th IFAC World Congress, 29-29, 2005.
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2004
Lennart Ljung, Jacob Roll, Anatoli Iouditski, Nazin Alexander, "Adaptive DWO Estimator of a Regression Function", Proceedings of the 2004 IFAC Symposium on Nonlinear Control Systems, 2004.
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Lennart Ljung, Weilu Lin, S. Joe Qin, "On Consistency of Closed-Loop Subspace Identification with Innovation Estimation", Proceedings of the 43rd IEEE Conference on Decision and Control, 2195-2200, 2004.
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David Lindgren, Lennart Ljung, "Nonlinear Dynamics Isolated by Delaunay Triangulation Criteria", Proceedings of the 43rd IEEE Conference on Decision and Control, 3862-3867 Vol.4, 2004.
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Lennart Ljung, "Challenges of non-linear identification", FIRST INTERNATIONAL SYMPOSIUM ON CONTROL, COMMUNICATIONS AND SIGNAL PROCESSING, 539-539, 2004.
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Martin Enqvist, Lennart Ljung, "LTI Approximations of Slightly Nonlinear Systems: Some Intriguing Examples", Proceedings of the 6th IFAC Symposium on Nonlinear Control Systems, 639-, 2004.
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Martin Enqvist, Lennart Ljung, "LTI Approximations of Slightly Nonlinear Systems: Some Intriguing Examples", Proceedings of Reglermöte 2004, 2004.
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Lennart Ljung, Qinghua Zhang, Peter Lindskog, Alexander Juditsky, "Modeling a Non-Linear Electric Circuit with Black Box and Grey Box Models", Proceedings of the 2004 IFAC Symposium on Nonlinear Control Systems, 2004.
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Qinghua Zhang, Lennart Ljung, "Multiple Steps Prediction with Nonlinear ARX Models", Proceedings of the 2004 IFAC Symposium on Nonlinear Control Systems, 2004.
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Lennart Ljung, "Integrated Frequency-Time Domain Tools for System Identification", Proceedings of the 2004 American Control Conference, 5594-5599, 2004.
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Lennart Ljung, "State of the Art in Linear System Identification: Time and Frequency Domain Methods", Proceedings of the 2004 American Control Conference, 650-660 vol.1, 2004.
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Jimmy Johansson, David Lindgren, Matthew Cooper, Lennart Ljung, "Interactive Analysis of Time-Varying Systems Using Volume Graphics", Proceedings of the 43rd IEEE Conference on Decision and Control, 5083-5087, 2004.
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2003
Lennart Ljung, Ingela Lind, "Structure Selection with ANOVA: Local Linear Models", Proceedings of the 13th IFAC Symposium on System Identification, 51-56, 2003.
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Lennart Ljung, "Version 6 of the System Identification Toolbox", Proceedings of the 13th IFAC Symposium on System Identification, 989-994, 2003.
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Lennart Ljung, S. Joe Qin, "Closed-Loop Subspace Identification with Innovation Estimation", Proceedings of the 13th IFAC Symposium on System Identification, 887-892, 2003.
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Lennart Ljung, "Educational Aspects of Identification Software User Interfaces", Proceedings of the 13th IFAC Symposium on System Identification, 1590-1594, 2003.
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Lennart Ljung, Pablo Parrilo, "Initialization of Physical Parameter Estimates", Proceedings of the 13th IFAC Symposium on System Identification, 1524-1529, 2003.
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Lennart Ljung, "Aspects and Experiences of User Choices in Subspace Identification Methods", Proceedings of the 13th IFAC Symposium on System Identification, 1802-1807, 2003.
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Lennart Ljung, S. Joe Qin, "Parallel QR Implementation of Subspace Identification with Parsimonious Models", Proceedings of the 13th IFAC Symposium on System Identification, 1631-1636, 2003.
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Lennart Ljung, "Initialisation Aspects for Subspace and Output-Error Identification Methods", Proceedings of the 2003 European Control Conference, 2003.
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Jacob Roll, Lennart Ljung, Alexander Nazin, "Local Modelling of Nonlinear Dynamic Systems Using Direct Weight Optimization", Proceedings of the 13th IFAC Symposium on System Identification, 1554-1559, 2003.
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Jacob Roll, Lennart Ljung, Alexander Nazin, "Local Modelling with A Priori Known Bounds Using Direct Weight Optimization", Proceedings of the 2003 European Control Conference, 2003.
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Svante Björklund, Lennart Ljung, "A Review of Time-Delay Estimation Techniques", Proceedings of the 42nd IEEE Conference on Decision and Control, 2502-2507 vol.3, 2003.
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Markus Gerdin, Torkel Glad, Lennart Ljung, "Parameter Estimation in Linear Differential-Algebraic Equations", Proceedings of the 13th IFAC Symposium on System Identification, 1530-, 2003.
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2002
Lennart Ljung, Liang-Liang Xie, "Estimate Physical Parameters by Black-Box Modeling", Proceedings of the 21st Chinese Control Conference, 673-677, 2002.
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Lennart Ljung, "System Identification and Simple Process Models", Proceedings of the 2002 International Symposium on Advanced Control of Industrial Processes, 13-24, 2002.
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Lennart Ljung, Alexander Nazin, "Asymptotically Optimal Smoothing of Averaged LMS for Regression Parameter Tracking", Proceedings of the 15th IFAC Congress, 436-436, 2002.
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Lennart Ljung, "Subspace Identification Methods Using Parsimonious Model Formulation", Proceedings of the 2002 AIChE Annual Meeting, 2002.
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Jacob Roll, Lennart Ljung, Alexander Nazin, "A Non-Asymptotic Approach to Local Modelling", Proceedings of the 4th Conference on Computer Science and Systems Engineering, 75-80, 2002.
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Lennart Ljung, Jacob Roll, Alexander Nazin, "A Non-Asymptotic Approach to Local Modelling", Proceedings of the 41st IEEE Conference on Decision and Control, 638-643 vol.1, 2002.
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Lennart Ljung, "Identification for Control: Simple Process Models", Proceedings of the 41st IEEE Conference on Decision and Control, 4652-4657 vol.4, 2002.
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David Lindgren, Lennart Ljung, "Clustered Regression Analysis", Proceedings of the 41st IEEE Conference on Decision and Control, 1838-1844 vol.2, 2002.
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Martin Enqvist, Lennart Ljung, "Approximation of Non-Linear Systems in a Neighborhood of LTI Systems", Proceedings of Reglermöte 2002, 289-291, 2002.
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Martin Enqvist, Lennart Ljung, "Estimating Nonlinear Systems in a Neighborhood of LTI-approximants", Proceedings of the 41st IEEE Conference on Decision and Control, 1005-1010 vol.1, 2002.
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2001
Lennart Ljung, Jacob Roll, Alberto Bemporad, "Identification of Hybrid Systems via Mixed-Integer Programming", Proceedings of the 40th IEEE Conference on Decision and Control, 786-792 vol.1, 2001.
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Lennart Ljung, Wolfgang Reinelt, "Robust Control of Identified Models with Mixed Parametric and Non-Parametric Uncertainties", Proceedings of the 2001 European Control Conference, 3564--3569, 2001.
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Lennart Ljung, Fredrik Tjärnström, "Variance Properties of a Two-Step ARX Estimation Procedure", Proceedings of the 2001 European Control Conference, 1840-1845, 2001.
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Lennart Ljung, Anders Helmersson, Torkel Glad, "Uncertain LTI-Models for Linear Control Design of Nonlinear Systems", Proceedings of the 40th IEEE Conference on Decision and Control, 2692-2694 vol.3, 2001.
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Lennart Ljung, Daishi A. Murano, Alex S. Poznyak, "Robust High-Gain DNN Observer for Nonlinear Stochastic Continuous Time Systems", Proceedings of the 40th IEEE Conference on Decision and Control, 3546-3551 vol.4, 2001.
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Lennart Ljung, "Black-Box Models from Input-Output Measurements", Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference, 138-146, 2001.
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2000
Lennart Ljung, "Model Error Modeling and Control Design", Proceedings of the 12th IFAC Symposium on System Identification, 2000.
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Lennart Ljung, "Version 5 of the System Identification Toolbox for Use with MATLAB - WIth Object Orientation", Proceedings of the 12th IFAC Symposium on System Identification, LiTH-ISY-R, Vol. 2221, 703-708, 2000.
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Fredrik Tjärnström, Lennart Ljung, "L2 Model Reduction and Variance Reduction", Proceedings of the 12th IFAC Symposium on System Identification, Automatica (Journal of IFAC), Vol. Volume 38, Issue 9, 1517-1530, 2000.
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Lennart Ljung, "Teaching System Identification: Goals and Formats of Different Courses", Proceedings of the 12th IFAC Symposium on System Identification, LiTH-ISY-R, Vol. 2222, 2000.
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Lennart Ljung, Anna Hagenblad, "Maximum Likelihood Estimation of Wiener Models", Proceedings of the 39th IEEE Conference on Decision and Control, 2417-2418 vol.3, 2000.
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Lennart Ljung, Liang-Liang Xie, "Aspects on the Interpretation of Disturbances in System Identification", Proceedings of the 39th IEEE Conference on Decision and Control, 668-673 vol.1, 2000.
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Lennart Ljung, Alf Isaksson, Ragnar Wallin, "An Iterative Method for Identification of ARX Models from Incomplete Data", Proceedings of the 39th IEEE Conference on Decision and Control, 203-208 vol.1, 2000.
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1999
Tomas McKelvey, Lennart Ljung, Fredrik Gustafsson, Anders Stenman, Daniel Rivera, "On Adaptive Smoothing of Empirical Transfer Function Estimates", Proceedings of the 14th IFAC World Congress, 415-420, 1999.
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Lennart Ljung, Pierre Carrette, "Efficient Computation of Cramer-Rao Bounds for the Transfer Functions of MIMO State-Space Systems", Proceedings of the 14th IFAC World Congress, 247-252, 1999.
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Lennart Ljung, Fredrik Tjärnström, "Minimizing the Variance of Transfer Function Estimates", Proceedings of the 6th St. Petersburg Symposium on Adaptive Systems Theory, 194-200, 1999.
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Lennart Ljung, "Estimation Focus in System Identification: Prefiltering, Noise Models, and Prediction", Proceedings of the 38th IEEE Conference on Decision and Control, 2810-2815 vol.3, 1999.
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Lennart Ljung, Fredrik Tjärnström, "Estimating the Variance in Case of Undermodeling Using Bootstrap", Proceedings of the 38th IEEE Conference on Decision and Control, 2394-2399 vol.3, 1999.
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Lennart Ljung, "Comments on Model Validation as Set Membership Identification", Proceedings of the 1998 Robustness in Identification and Control Workshop, Lecture Notes in Control and Information Sciences, 7-17, 1999.
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Lennart Ljung, "Model Validation and Model Error Modeling", Prcoeedings of the 1999 Åström Symposiium on Control, 15-42, 1999.
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Wolfgang Reinelt, Andrea Garulli, Lennart Ljung, Julio H. Braslavsky, Antonio Vicino, "Model Error Concepts in Identification for Control", Proceedings of the 38th IEEE Conference on Decision and Control, 1488-1493, 1999.
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1998
Lennart Ljung, Urban Forssell, "Identification for Control: Some Results on Optimal Experiment Design", Proceedings of the 37th IEEE Conference on Decision and Control, 3384-3389 vol.3, 1998.
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Lennart Ljung, Urban Forssell, "Bias, Variance and Optimal Experiment Design: Some Comments on Closed Loop Identification", Proceedings of the 1998 Conference on Perspectives in Control - A tribute to Ioan Dore Landau, 205-216, 1998.
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Lennart Ljung, Anna Hagenblad, "Maximum Likelihood Identification of Wiener Models with a Linear Regression Initialization", Proceedings of the 37th IEEE Conference on Decision and Control, 712-713 vol.1, 1998.
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Lennart Ljung, Torkel Glad, "Identifiability with Constraints", Proceedings of the 4th IFAC Symposium on Nonlinear Control Systems Design, 455-458, 1998.
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Lennart Ljung, Urban Forssell, "Identification of Unstable Systems using Output Error and Box-Jenkins Model Structures", Proceedings of the 37th IEEE Conference on Decision and Control, 3932-3927 vol.4, 1998.
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Lennart Ljung, "Identification for Control - What is there to learn?", Proceedings of the 1998 Learning, Control and Hybrid Systems Workshop, Lecture Notes in Control and Information Sciences, 207-225, 1998.
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1997
Lennart Ljung, "Identification, Model Validation and Control", Plenary Presentation at the the 36th IEEE Conference on Decision and Control, 1997.
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Lennart Ljung, Urban Forssell, "Tracking Time-Varying Systems: Revisiting Some Basic Trade-offs", Proceedings of the 11th IFAC Symposium on System Identification, 1759-1764, 1997.
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Tomas McKelvey, Lennart Ljung, "Interpretation of Subspace Methods: Consistency Analysis", Proceedings of the 11th IFAC Symposium on System Identification, 1125-1130, 1997.
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Lennart Ljung, Tomas McKelvey, "Frequency Domain Maximum Likelihood Identification", Proceedings of the 11th IFAC Symposium on System Identification, 1741-1746, 1997.
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Lennart Ljung, "Identification in Closed Loop: Some Aspects on Direct and Indirect Approaches", Proceedings of the 11th IFAC Symposium on System Identification, 141-146, 1997.
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Lennart Ljung, "System Identification", Proceedings of the First European Conference on Signal Analysis and Prediction, 41-47, 1997.
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Lennart Ljung, Peter Lindskog, "Ensuring Certain Physical Properties in Black Box Models by Applying Fuzzy Techniques", Proceedings of the 11th IFAC Symposium on System Identification, 721-727, 1997.
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Lennart Ljung, "Developments for the System Identification Toolbox for MATLAB", Proceedings of the 11th IFAC Symposium on System Identification, 969-975, 1997.
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Lennart Ljung, Tomas McKelvey, Fredrik Gustafsson, Anders Stenman, Sarojini Adusumilli, Daniel Rivera, "Just-in-Time Models for Improved Identification and Control", Proceedings of the 1997 American Institute of Chemical Engineers Annual Meeting, 1997.
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Lennart Ljung, "Nonlinear Black Box Models in System Identification", Proceedings of the 1997 IFAC International Symposum on Advanced Control of Chemical Processes, 1-13, 1997.
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Fredrik Gustafsson, Lennart Ljung, Niclas Bergman, "Point-Mass Filter and Cramer-Rao Bound for Terrain-Aided Navigation", Proceedings of the 36th IEEE Conference on Decision and Control, 565-570 vol.1, 1997.
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Urban Forssell, Lennart Ljung, "Variance Results for Closed-Loop Identification Methods", Proceedings of the 36th IEEE Conference on Decision and Control, 2435-2440, 1997.
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Lennart Ljung, Paul. M. J. Van den Hof, Michel Gevers, "Asymptotic Variance Expressions for Closed-Loop Identification and their Relevance in Identification for Control", Proceedings of the 11th IFAC Symposium on Identification and System Parameter Estimation, 1449-1455, 1997.
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1996
Lennart Ljung, "Some Aspects of Nonlinear Black-Box Modeling in System Identification", Proceedings of the 1996 Conference on Communications, Computing, Control and Signal Processing, 431-440, 1996.
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Anders Stenman, Fredrik Gustafsson, Lennart Ljung, "Just-in-Time Models for Dynamical Systems", Proceedings of Reglermöte 1996, 285--289, 1996.
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Lennart Ljung, "Models in Signal Processing", Proceedings of Radiovetenskaplig Konferens 1996, 1996.
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Lennart Ljung, Roger Germundsson, Johan Gunnarsson, Inger Klein, Jonas Plantin, "Hybrid and Discrete Systems in Automatic Control - Some New (Linköping) Approaches", Proceedings of Reglermöte 1996, 1996.
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Lennart Ljung, "Development of System Identification", Proceedings of the 13th IFAC World Congress, 141-146, 1996.
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Lennart Ljung, Lei Guo, "Estimating the Total Model Error from Standard Model Validation Tests", Proceedings of the 13th IFAC World Congress, 133-138, 1996.
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Tomas McKelvey, Lennart Ljung, "A Least Squares Interpretation of Sub-Space Methods for System Identification", Proceedings of the 35th IEEE Conference on Decision and Control, 335-342 vol.1, 1996.
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Lennart Ljung, "PAC-Learning and Asymptotic System Identification Theory", Proceedings of the 35th IEEE Conference on Decision and Control, 2303-2307 vol.2, 1996.
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Lennart Ljung, Fredrik Gustafsson, Anders Stenman, "Just-in-Time Models for Dynamical Systems", Proceedings of the 35th IEEE Conference on Decision and Control, 1115-1120 vol.1, 1996.
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1995
Lennart Ljung, "Nonlinear Black Box Modeling in System Identification", Proceedings of the Fourth International Conference on Artificial Neural Networks, 1995.
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Lennart Ljung, "Nonlinear Black Box Models in Systems Identification", Proceedings of the 2nd Russian Swedish Control Conference, 23-27, 1995.
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Tomas McKelvey, Lennart Ljung, Hüseyin Akçay, "Identification of Infinite Dimensional Systems from Frequency Response Data", Proceedings of the 3rd European Control Conference, 2106-2111, 1995.
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Håkan Hjalmarsson, Lennart Ljung, "System Identification through the Eyes of Model Validation", Proceedings of the 3rd European Control Conference, 1995.
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Asha Tikku, Lennart Ljung, "Worst-Case Identification in L1 for F.I.R. Linear Systems", Proceedings of the 34th IEEE Conference on Decision and Control, 2998-3003 vol.3, 1995.
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Lennart Ljung, Lei Guo, "Estimating the Total Model Error from Standard Model Validation Tests", Proceedings of the 34th IEEE Conference on Decision and Control, 1651-1656 vol.2, 1995.
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1994
Lennart Ljung, "From Data to Model: A Guided Tour of System Identification", Proceedings of the 1994 IEEE International Conference on Control, 422-430 vol.1, 1994.
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Lennart Ljung, "A Graphical User Interface (GUI) to the System Identification Toolbox", Proceedings of the 10th IFAC Symposium on System Identification, 29-33, 1994.
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Lennart Ljung, "The EKF, RPEM and Recursive Maximum Likelihood Method in a Simple Application to Image Restoration", Proceedings of the 10th IFAC Symposium on System Identification, 441-446, 1994.
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Lennart Ljung, Peter Lindskog, "Tools for Semi-Physical Modeling", Proceedings of the 10th IFAC Symposium on System Identification, 237-242, 1994.
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Jonas Sjöberg, Håkan Hjalmarsson, Lennart Ljung, "Neural Networks in System Identification", Proceedings of the 10th IFAC Symposium on System Identification, 49-72, 1994.
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Hüseyin Akçay, Håkan Hjalmarsson, Lennart Ljung, "On the Choice of Norms in System Identification", Proceedings of the 10th IFAC Symposium on System Identification, 103-108, 1994.
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Lennart Ljung, Lei Guo, "The Role of Model Validation for Assessing the Size of the Unmodeled Dynamics", Proceedings of the 33rd IEEE Conference on Decision and Control, 3894-3899 vol.4, 1994.
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Lennart Ljung, Lei Guo, "Performance Analysis of General Tracking Algorithms", Proceedings of the 33rd IEEE Conference on Decision and Control, 2851-2855 vol.3, 1994.
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Lennart Ljung, Svante Gunnarsson, Fredrik Gustafsson, "On Time-Frequency Resolution of Signal Properties using Parametric Techniques", Proceedings of the 33rd IEEE Conference on Decision and Control, 2259-2264 vol.3, 1994.
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Torbjörn Andersson, Predrag Pucar, Lennart Ljung, "Identification Aspects of Inter-Sample Input Behavior", Proceedings of the 10th IFAC Symposium on System Identification, 137-142, 1994.
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Lennart Ljung, Tomas McKelvey, T Abrahamsson, "A Study of some Approaches to Vibration Data Analysis", Proceedings of the 10th IFAC Symposium on System Identification, 289-294, 1994.
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Jonas Sjöberg, Lennart Ljung, "Criterion Minimization Using Estimation Data and Validation Data", Proceedings of the 10th IFAC Symposium on System Identification, 187-190, 1994.
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Lennart Ljung, Yucai Zhu, Peter van Overschee, Bart de Moor, "Comparison of Three Classes of Identification Methods", Proceedings of the 10th IFAC Symposium on System Identification, 175-180, 1994.
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Håkan Hjalmarsson, Lennart Ljung, "A Unifying View of Disturbances in Identification", Proceedings of the 10th IFAC Symposium on System Identification, 73-78, 1994.
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Lennart Ljung, "Aspects on Accelerated Convergence in Stochastic Approximation Schemes", Proceedings of the 33rd IEEE Conference on Decision and Control, 1649-1652 vol.2, 1994.
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1993
Lennart Ljung, Jonas Sjöberg, Tomas McKelvey, "On the Use of Regularization in System Identification", Proceedings of the 12th IFAC World Congress, 381-386, 1993.
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Mats Viberg, Björn Ottersten, Bo Wahlberg, Lennart Ljung, "Performance of Subspace based State-Space System Identification Methods", Proceedings of the 12th IFAC World Congress, 369-, 1993.
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Lennart Ljung, "The Process of Identification", Proceedings of the 12th IFAC World Congress, 197-, 1993.
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Lennart Ljung, Torbjörn Andersson, Torkel Glad, "Identifiability Implies Robust Identifiability", Proceedings of the Second European Control Conference, 2144-2148, 1993.
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Lennart Ljung, Torbjörn Andersson, Torkel Glad, "Identifiability Implies Robust Identifiability", Proceedings of the 32nd IEEE Conference on Decision and Control, 567-569 vol.1, 1993.
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Lennart Ljung, "Some Results on Identifying Linear Systems Using Frequency Domain Data", Proceedings of the 32nd IEEE Conference on Decision and Control, 3534-3538 vol.4, 1993.
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Lennart Ljung, "Information Contents in Identification Data from Closed-Loop Operation", Proceedings of the 32th IEEE Conference on Decision and Control, 2248-2252 vol.3, 1993.
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Håkan Hjalmarsson, Lennart Ljung, "A Discussion of Unknown-but-Bounded Disturbances in System Identification", Proceedings of the 32nd IEEE Conference on Decision and Control, 535-536 vol.1, 1993.
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Lennart Ljung, "Modelling of Industrial Systems", Proceedings of the 7th International Symposium, Methodologies for Intelligent Systems, Lecture Notes in Computer Science, 338-350, 1993.
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1992
Lennart Ljung, Bo Egardt, C. R. Johnson, Jr, G. A. Williamson, "Adaptive System Performance in the Frequency Domain", Adaptive systems in control and signal processing 1992, 33-40, 1992.
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Lennart Ljung, Jonas Sjöberg, "Overtraining, Regularization and Searching for Minimum in Neural Networks", 4th IFAC Symposium on Adaptive Systems in Control and Signal Processing, 669-674, 1992.
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Peter Nagy, Lennart Ljung, "System Identification using Bond Graphs", Proceedings of the 4th IFAC Symposium on Adaptive Systems in Control and Signal Processing, 415-420, 1992.
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Lennart Ljung, Jonas Sjöberg, "A Comment on Leakage in Adaptive Algorithms", Proceedings of the 4th IFAC International Symposium on Adaptive Systems in Control and Signal Processing, 377-382, 1992.
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Lennart Ljung, "Optimal and Ad Hoc Adaptation Mechanisms", Proceedings of the 2nd International Symposium on Signals Systems and Electronics, 1992.
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Lei Guo, Lennart Ljung, Pierre Priouret, "Tracking Performance Analysis of the Forgetting Factor RLS Algorithm", Proceedings of the 31st IEEE Conference on Decision and Control, 688-693 vol.1, 1992.
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Lennart Ljung, Jonas Sjöberg, "A System Identification Perspective on Neural Nets", Proceedings of the 1992 IEEE Workshop on Neural Networks for Signal Processing, 423-435, 1992.
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1991
Lennart Ljung, Bo Wahlberg, Håkan Hjalmarsson, "Model Quality: The Role of Prior Knowledge and Data Information", Proceedings of the 30th IEEE Conference on Decision and Control, 273-278, 1991.
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Lennart Ljung, "A (simple) Perspective on Adaptation Algorithms", Proceedings of the 1991 Workshop on Stochastic Theory - Adaptive Control, Lecture Notes in Control and Information Sciences, Vol. 184, 306-320, 1991.
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R. B. Freund, Geoffrey A. Williamson, C. Richard Johnson, Jr, Lennart Ljung, "Cascade Realization of an Adaptive FIR Filter: Global Properties of the Average Squared Prediction Error Surface", Proceedings of the 25th Conference on Information Sciences and Systems, 1991.
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Håkan Hjalmarsson, Bo Wahlberg, Lennart Ljung, "Assessing Model Quality from Data", Proceedings of the 1990 IIASA Symposium on Modeling and Control of Systems with Uncertainty, 167-187, 1991.
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Lennart Ljung, "An Exact Formula for the Tracking Ability of Adaptive Algorithms: Implications for the General Case", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 208-212, 1991.
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Peter Nagy, Lennart Ljung, "Estimating Time-Delays via State-Space Identification Methods", Prcoeedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 1141-1144, 1991.
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Peter Nagy, Lennart Ljung, "Computer-Aided Model Structure Selection", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 918-923, 1991.
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Lennart Ljung, "Identifying State-Space Models with Mathwork's System Identification Toolbox", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 1582-1584, 1991.
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Krister Forsman, Lennart Ljung, "On the Dead-Zone in System Identification", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 1410-1414, 1991.
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Bo Wahlberg, Lennart Ljung, "On Estimation of Transfer Function Error Bounds", Proceedings of the 1st European Control Conference, 1378-1180, 1991.
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Mats Viberg, Björn Ottersten, Bo Wahlberg, Lennart Ljung, "A Statistical Perspective on State-Space Modelling using Subspace Methods", Proceedings of the 30th IEEE Conference on Decision and Control, 1337-1342 vol.2, 1991.
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Torkel Glad, Lennart Ljung, "Testing Global Identifiability for Arbitrary Model Parametrizations", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 1077-1082, 1991.
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Lennart Ljung, Bo Wahlberg, Torsten Söderström, "On Sampling and Reconstruction of Continuous Time Stochastic Systems", Proceedings of the 9th IFAC Symposium on System Identification and System Parameter Estimation, 1174-1178, 1991.
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Peter Nagy, Lennart Ljung, "System Identification using Bond Graphs", Proceedings of the First European Control Conference, 2564-2569, 1991.
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Jan-Erik Strömberg, Fredrik Gustafsson, Lennart Ljung, "Trees as Black-Box Model Structures for Dynamical Systems", Proceedings of the First European Control Conference, 1175-1180, 1991.
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Lennart Ljung, "Optimal and Ad Hoc Adaptation Mechanisms", Proceedings of the First European Control Conference, 2013-2020, 1991.
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Alf Isaksson, Lennart Ljung, Jan-Erik Strömberg, "On Recursive Construction of Trees as Models of Dynamical Systems", Proceedings of the 30th IEEE Conference on Decision and Control, 1686-1687 vol.2, 1991.
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Lennart Ljung, "A Simple Start-Up Procedure for Canonical form State Space Identification, based on Subspace Approximation", Proceedings of the 30th IEEE Conference on Decision and Control, 1333-1336 vol.2, 1991.
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1990
Håkan Hjalmarsson, Lennart Ljung, "How to Estimate Model Uncertainty in the Case of Under-Modelling", Proceedings of the 1990 American Control Conference, 323-324, 1990.
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Lennart Ljung, Bo Wahlberg, "Influence of Model Order on Change Detection in Noise-Free Complex System", Proceedings of the 1990 American Control Conference, 2388-2393, 1990.
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Lennart Ljung, Torkel Glad, "Parametrization of Nonlinear Model Structures as Linear Regressions", Proceedings of the 11th IFAC World Congress, 67-71, 1990.
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Lennart Ljung, Torkel Glad, "Model Structure Identifiability and Persistence of Excitation", Proceedings of the 29th IEEE Conference on Decision and Control, 3236-3240 vol.6, 1990.
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1989
Svante Gunnarsson, Lennart Ljung, "Frequency Domain Description of the Tracking Capability and Disturbance Rejection Trade-Off in Recursive Identification", Proceedings of the 1989 International Conference on Acoustics, Speech and Signal Processing, 2077-2080, 1989.
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Björn Ottersten, Lennart Ljung, "Asymptotic Results for Sensor Array Processing", Proceedings of the 1989 International Conference on Acoustics, Speech and Signal Processing, 2266-2269, 1989.
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Lennart Ljung, "Choices of Prefilters and Forgetting Factors in Noise-Free Identification", Proceedings of the 1989 American Control Conference, 1409-1415, 1989.
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Lennart Ljung, "System Identification in a Noise Free Environment", Proceedings of the 1989 IFAC Symposium on Adaptive Control and Adaptive Signal Processing, 29-38, 1989.
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Lennart Ljung, "An Estimate of the Tracking Ability of Adaptive Algorithms", Proceedings of the 28th IEEE Conference on Decision and Control, 1392-1394, 1989.
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Peter Nagy, Lennart Ljung, "An Intelligent Tool for System Identification", Proceedings of the 1989 IEEE Control Systems Society Workshop on Computer-Aided Control System Design, 58-63, 1989.
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Krister Forsman, Lennart Ljung, Mille Millnert, Anders Skeppstedt, "Merging 'Reasoning' and Filtering in a Bayesian Framework: Some Sensitivity and Optimality Aspects", Proceedings of the 28th Conference on Decision and Control, 1427-1429, 1989.
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1988
Lennart Ljung, "Adaptation and Tracking in Dynamical Systems", Proceedings of the 1988 Benelux Meeting on Systems and Control, 1988.
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Lennart Ljung, "System Identification: A Status Report", Proceedings of the 1988 Benelux Meeting on Systems and Control, 1988.
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Lennart Ljung, "Adaptation and Tracking in System Identification", Proceedings of the 8th IFAC Symposium on Identification and System Parameter Estimation, 1-10, 1988.
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Lennart Ljung, "Modelling and Identification for Simulation", Proceedings of the 12th IMACS World Congress, 1988.
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1987
Lennart Ljung, "Identification: An Expository Survey", Proceedings of the 1987 Workshop on Automatic Control and Signal Processing, 1987.
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Lennart Ljung, "Recursive Techniques for Identifying Dynamic Systems", Proceedings of the 1987 Workshop on Automatic Control and Signal Processing, 1987.
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Lennart Ljung, "Design Issues in System Identification", Proceedings of the 1987 NATO Advanced Research Workshop on Modelling, Robustness and Sensitivity Reduction in Control Systems, 1987.
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Lennart Ljung, "Signals, Noises and Model Errors", Proceedings of the 1987 Conference on Mathematical Theory of Networks and Systems, 1987.
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Lennart Ljung, "Adaptation and Tracking in Identification", Proceedings of the 1987 AFSR Meeting on Signal Processing, 1987.
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Lennart Ljung, "On the Estimation of Transfer Functions", Proceedings of the 10th IFAC World Congress on Automatic Control, 271-281, 1987.
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Lennart Ljung, Sanjoy K. Mitter, Jose M.F. Moura, "Optimal Recursive Maximum Likelihood Estimation", Proceedings of the 10th IFAC World Congress on Automatic Control, 247-281, 1987.
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1986
Lennart Ljung, "Building Models for a Specified Purpose using System Identification", Proceedings of the 1986 IFAC/IFORS Symposium on Simulation of Control Systems, 3-9, 1986.
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Lennart Ljung, "Identification Theory and Single Realization Behaviour", Proceedings of the 25th IEEE Conference on Decision and Control, 1478-1480, 1986.
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Lennart Ljung, "System Identification, Model Simplification and the Design Objective", Proceedings of the 25th IEEE Conference on Decision and Control, 783-788, 1986.
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1985
Lennart Ljung, "Frequency Domain and Time-Domain Methods in System Identification", Proceedings of the 1985 Conference on Mathematical Theory of Networks and Systems, 1985.
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Farhat Fnaiech, Lennart Ljung, "On the Identification and Adaptive Control of Bilinear Systems", Proceedings of the JTEA'85, 6eme Journées Tunisiennes d ' Electrotechnique et d'Automatique, Paper 19-, 1985.
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Lennart Ljung, "A Non-Probabilistic Framework for Signal Spectra", Proceedings of the 24th IEEE Conference on Decision and Control, 1056-1060, 1985.
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Eva Trulsson, Lennart Ljung, "Stability in Adaptive Control by Persistently Exciting Regulators", Proceedings of the 24th IEEE Conference on Decision and Control, 484-491, 1985.
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Lennart Ljung, "System Identification: An Expository Survey", Proceedings of the 23rd Annual Allerton Conference on Communications, Control and Computing, 204-216, 1985.
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Eva Trulsson, Lennart Ljung, "On Self-Robustification of Adaptive Control Performance Criteria", Proceedings of the 7th IFAC Symposium on Identification and System Parameter Estimation, 1021-1024, 1985.
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Michel Gevers, Lennart Ljung, "Benefits of Feedback in Experiment Design", Proceedings of the 7th IFAC Symposium on Identification and System Parameter Estimation, 909-914, 1985.
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Lennart Ljung, "On the Estimation of Transfer Functions", Proceedings of the 7th IFAC Symposium on Identification and System Parameter Estimation, 1341-1344, 1985.
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1984
Lennart Ljung, "Asymptotic Variance Expressions for Identified Black-Box Transfer Function Models", Proceedings of the 23rd IEEE Conference on Decision and Control, 951-958, 1984.
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Bo Wahlberg, Lennart Ljung, "Design Variables for Bias Distribution in Transfer Function Estimation", Proceedings of the 23rd IEEE Conference on Decision and Control, 335-341, 1984.
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Lennart Ljung, "Frequency Domain Properties of Identified Transfer Functions", Proceedings of the 4th IMA International Conference on Control Theory, 1984.
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Lennart Ljung, "Modern System Identification", Proceedings of the URSI XX1st General Assembly, paper B4-2-, 1984.
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Torkel Glad, Lennart Ljung, "Velocity Estimation from Irregular, Noisy Position Measurements", Proceedings of the 9th IFAC World Congress, 275-279, 1984.
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Stefan Ljung, Lennart Ljung, "Error Propagation Properties of Recursive Least-Squares Adaptation Algorithms", Proceedings of the 9th IFAC World Congress, 70-74, 1984.
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1983
Lennart Ljung, Zhen-Dong Yuan, "Properties of Non-Parametric Time-Domain Methods for Estimating Transfer Functions", Proceedings of the 22nd IEEE Conference on Decision and Control, 323-324, 1983.
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Lennart Ljung, "Adaptive Parameter Estimation", Proceedings of the 22nd IEEE Conference on Decision and Control, 1983.
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Lennart Ljung, "Advanced Process Control", Proceedings of the 1983 International Symposium on Pulp and Paper Mill-Wide Control, 1983.
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Lennart Ljung, "Recursive Identification of Stochastic, Dynamical Systems", Proceedings of the 44th Session of the International Statistical Institute, 1983.
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Torsten Söderström, Lennart Ljung, "User Choices for Recursive Identification Methods", Proceedings of the 1st IASTED Conference on Applied Control and Identification, 14-24, 1983.
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C. Richard Johnson, Jr, Lennart Ljung, "On Possible Convergence Points for Reduced Order Indirect Adaptive Pole Placement", Proceedings of the 17th Conference on Information Sciences and Systems, 108-113, 1983.
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1982
Zhen-Dong Yuan, Lennart Ljung, "Optimal Input Design by Frequency Domain Criteria", Proceedings of the 21st IEEE Conference on Decision and Control, 1005-1006, 1982.
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Lennart Ljung, "An Overview of the System Identification Problem: Introduction", Proceedings of the 6th IFAC Symposium on Identification and System Parameter Estimation, 1982.
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Lennart Ljung, "Systems, Models and System Identification", Proceedings of the 1982 International Symposium on Circuits and Systems, 907-910, 1982.
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Lennart Ljung, "Recursive Identification Techniques", Proceedings of the 1982 IEEE International Conference on Acoustics, Speech and Signal Processing, 627-630, 1982.
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1981
Peter Andersson, Lennart Ljung, "A Test Case for Adaptive Control: Car Steering", Proceedings of the 1981 IFAC Symposium on Theory and Applications of Digital Control, 1981.
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Benjamin Friedlander, Lennart Ljung, Martin Morf, "Lattice Implementation of the Recursive Maximum Likelihood Algorithm", Proceedings of the 20th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes, 1083-1084, 1981.
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Lennart Ljung, Eva Trulsson, "Adaptive Control based on Explicit Criterion Minimization", Proceedings of the 8th IFAC World Congress, 1981.
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Lennart Ljung, "On the Positive-Real Condition in Adaptive Control", Proceedings of the 1981 Workshop on Applications of Adaptive Systems Theory, 1981.
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1980
D. M. Wiberg, Lennart Ljung, "Gaussian-Optimal On-Line Parameter Estimation", Proceedings of the 19th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes, 681-683, 1980.
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Lennart Ljung, "Asymptotic Gain and Search Direction for Recursive Identification Algorithms", Proceedings of the 19th IEEE Conference on Decision and Control including the Symposium on Adaptive Processes, 981-985, 1980.
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Lennart Ljung, "The ODE Approach to the Analysis of Adaptive Control Systems: Possibilities and Limitations", Proceedings of the 1980 Joint Automatic Control Conference, 1980.
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1979
Lennart Ljung, Keith Glover, "Frequency Domain versus Time Domain Methods in System Identification: A Brief Discussion", Proceedings of the 5th IFAC Symposium on Identification and System Parameter Estimation, 1309-1322, 1979.
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Lennart Ljung, "Convergence of Recursive Estimators", Proceedings of the 5th IFAC Symposium on Identification and System Parameter Estimation, 131-144, 1979.
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A J M van Overbeek, Lennart Ljung, "On-Line Structure Selection for Multivariable State Space Models", Proceedings of the 5th IFAC Symposium on Identification and System Parameter Estimation, 387-396, 1979.
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Lennart Ljung, "Fast Algorithms for Recursive Estimation and Identification", Proceedings of the 1979 International Conference on Numerical Techniques for Stochastic Systems, 43-48, 1979.
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Lennart Ljung, "Asymptotic Theory of Prediction Error Estimation Methods", Proceedings of the 1979 International Time Series Meeting, 157-166, 1979.
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1978
Bernard C. Levy, Thomas Kailath, Martin Morf, Lennart Ljung, "Fast Time-Invariant Implementations for Linear Least-Squares Smoothing Filters", Proceedings of the 1978 IEEE Conference on Decision and Control including the 17th Symposium on Adaptive Processes, 1156-1159, 1978.
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