Research Interests
Control theory
        : stochastic control theory; information and control (in decentralization, filtering or information theoretic constraints); robustness and approximations in control; learning theory
Information theory: optimal quantization and coding; interaction of information theory, control theory and game theory
Probability             
: stochastic stability of dynamical systems; non-linear filtering; Markov processes

Books

  • N. Saldi, T. Linder and S. Yüksel. Finite Approximations in Discrete-Time Stochastic Control: Quantized Models and Asymptotic Optimality. Systems & Control: Foundations & Appl., Springer, Cham 2018.
  • S. Yüksel and T. Başar. Stochastic Networked Control Systems: Stabilization and Optimization under Information Constraints. Systems & Control: Foundations & Appl., Springer, New York 2013. [errata]

  • Preprints
  • I. Hogeboom-Burr and S. Yüksel, Sequential Stochastic Control (Single or Multi-Agent) Problems Nearly Admit Change of Measures with Independent Measurements (arXiv)
  • S. Sanjari T. Başar and S. Yüksel, Isomorphism Properties of Optimality and Equilibrium Solutions under Equivalent Information Structure Transformations I: Stochastic Dynamic Teams (arXiv)
  • S. Sanjari T. Başar and S. Yüksel, Isomorphism Properties of Optimality and Equilibrium Solutions under Equivalent Information Structure Transformations II: Stochastic Dynamic Games (arXiv)
  • A. D. Kara, N. Saldi and S. Yüksel, Q-Learning for MDPs with General Spaces: Convergence and Near Optimality via Quantization under Weak Continuity (arXiv)
  • C. McDonald and S. Yüksel, Robustness to Incorrect Priors and Controlled Filter Stability in Partially Observed Stochastic Control (arXiv)
  • I. Hogeboom-Burr and S. Yüksel, Continuity Properties of Value Functions in Information Structures for Zero-Sum and General Games and Stochastic Teams (arXiv)
  • A. Arapostathis and S. Yüksel, Convex Analytic Method Revisited: Further Optimality Results and Performance of Deterministic Control Policies (arXiv)
  • N. Saldi and S. Yüksel, Geometry of Information Structures, Strategic Measures and Associated Control Topologies (arXiv)
  • A. D. Kara and S. Yüksel, Convergence of Finite Memory Q-Learning for POMDPs and Near Optimality of Learned Policies under Filter Stability (arXiv)
  • S. Sanjari, N. Saldi and S. Yüksel,  Optimality of Independently Randomized Symmetric Policies for Exchangeable Stochastic Teams with Infinitely Many Decision Makers (arXiv)
  • A. D. Kara and S. Yüksel Robustness to Approximations and Model Learning in MDPs and POMDPs in Modern Trends in Controlled Stochastic Processes: Theory and Applications, Volume III. A. B. Piunovskiy and Y. Zhang, editors, Luniver Press, Frome, UK 2021 (pdf).
  • M. Ghomi, T. Linder and S. Yüksel Zero-Delay Lossy Coding of Linear Vector Markov Sources: Optimality of Stationary Codes and Near Optimality of Finite Memory Codes (arXiv)
  • C. McDonald and S. Yüksel, Converse Results on Filter Stability Criteria and Stochastic Non-Linear Observability (arXiv)
  • E. Kazikli, S. Gezici and S. Yüksel, Quadratic Privacy-Signaling Games and the MMSE Gaussian Information Bottleneck Problem (arXiv)

  • Journal publications

  • A. D. Kara and S. Yüksel, Near Optimality of Finite Memory Feedback Policies in Partially Observed Markov Decision Processes, Journal of Machine Learning Research, to appear. 
  • I. Hogeboom-Burr and S. Yüksel, Comparison of Information Structures for Zero-Sum Games and a Partial Converse to Blackwell Ordering in Standard Borel Spaces SIAM Journal on Control and Optimization, vol. 59, pp. 1781-1803, 2021 (arXiv) (pdf).
  • E. Kazikli, S. Saritas, S. Gezici, T. Linder and S. Yüksel, Signaling Games for Log-Concave Distributions: Number of Bins and Properties of Equilibria  (arXiv) IEEE Trans. Information Theory, to appear.
  • N. Garcia, C. Kawan and S. Yüksel, Ergodicity Conditions for Controlled Stochastic Nonlinear Systems Under Information Constraints: a Volume Growth Approach, SIAM Journal on Control and Optimization, vol. 59, pp. 534-56, 2021 (pdf).
  • S. Sanjari and S. Yüksel, Optimal Policies for Convex Symmetric Stochastic Dynamic Teams and their Mean-Field Limit, SIAM Journal on Control and Optimization, vol. 59, pp. 777-804, 2021 (pdf).
  • B. Yongacoglu, G. Arslan and S. Yüksel, Decentralized Learning for Optimality in Stochastic Dynamic Teams and Games with Local Control and Global State Information (arXiv), IEEE Trans. Automatic Control, to appear.
  • A. D. Kara, M. Raginsky and S. Yüksel, Robustness to Incorrect Models and Data-Driven Learning in Average-Cost Optimal Stochastic Control (arXiv), Automatica, to appear.
  • M. Derpich and S. Yüksel, Dual Effect, Certainty Equivalence, and Separation Revisited: A Counterexample and a Relaxed Characterization for Optimality, IEEE Trans. Automatic Control, to appear.
  • E. Kazikli, S. Saritas, S. Gezici, and S. Yüksel, Quadratic Signaling with Prior Mismatch at an Encoder and Decoder: Equilibria, Continuity and Robustness Properties, IEEE Trans. Automatic Control, to appear. (arXiv)
  • C. Kawan and S. Yüksel, Invariance Properties of Nonlinear Stochastic Dynamical Systems under Information Constraints IEEE Trans. Automatic Control, v. 66, pp. 4514-4529, Oct. 2021 (arXiv).
  • S. Sanjari and S. Yüksel, Optimal Solutions to Infinite-Player Stochastic Teams and Mean-Field Teams IEEE Trans. Automatic Control, v. 66, pp. 1071-1086, March 2021 (pdf).
  • C. McDonald and S. Yüksel, Exponential Filter Stability via Dobrushin's Coefficient, Electronic Communications in Probability, 2020 (pdf).
  • S. Yüksel, A Universal Dynamic Program and Refined Existence Results for Decentralized Stochastic Control, SIAM Journal on Control and Optimization, vol. 58, 2711–2739, 2020 (pdf).
  • A. D. Kara and S. Yüksel, Robustness to Incorrect System Models in Stochastic Control, SIAM Journal on Control and Optimization, vol. 58, pp. 1144–1182, 2020 (pdf)(arXiv).
  • C. Kawan and S. Yüksel, Metric and Topological Entropy Bounds for Optimal Coding of Stochastic Dynamical Systems, IEEE Trans. Automatic Control, v. 65, pp. 2466-2479, June 2020 (pdf, ISIT'17).
  • C. McDonald, F. Alajaji and S. Yüksel, Two-Way Gaussian Networks with a Jammer and Decentralized Control, IEEE Trans. Control of Network Systems, pp. 446-457, March 2020 (pdf).
  • N. A. Dalkiran and S. Yüksel,  Stochastic Control Approach to Reputation Games, IEEE Trans. Automatic Control, vol. 65, pp. 4710-4725, Nov. 2020 (arXiv).
  • S. Saritas, S. Yüksel and S. Gezici, Dynamic Signaling Games with Quadratic Criteria under Nash and Stackelberg Equilibria, Automatica, May 2020 (pdf).
  • N. Saldi, S. Yüksel and T. Linder, Finite Model Approximations for Partially Observed Markov Decision Processes with Discounted Cost, IEEE Trans. Automatic Control, v. 65, Jan. 2020 (pdf).
  • A. D. Kara, N. Saldi and S. Yüksel, Weak Feller Property of Non-linear Filters Systems and Control Letters, Dec. 2019 (arXiv) (pdf link)
  • A. D. Kara and S. Yüksel, Robustness to Incorrect Priors in Partially Observed Stochastic Control, SIAM Journal on Control and Optimization, v. 57, pp. 1929–1964, 2019 (pdf).
  • S. Yüksel, A Note on the Separation of Optimal Quantization and Control Policies in Networked Control, SIAM Journal on Control and Optimization, v. 57, pp. 773-782, 2019 (pdf).
  • C. Kawan and S. Yüksel, On Optimal Coding of Non-linear Dynamical Systems, IEEE Trans. Information Theory, vol. 64, pp. 6816 - 6829, Oct. 2018 (pdf).
  • S. Yüksel, On Stochastic Stability of a Class of non-Markovian Processes and Applications in Quantization, SIAM Journal on Control and Optimization, vol. 55, pp. 1241-1260, 2017 (arXiv) (pdf) (ISIT'17).
  • R. Wood, T. Linder and S. Yüksel, Optimal Zero Delay Coding of Markov Sources: Stationary and Finite Memory Codes, IEEE Trans. Information Theory, vol. 63, pp. 5968-5980, Sept. 2017 (pdf).
  • N. Saldi, S. Yüksel and T. Linder, On the Asymptotic Optimality of Finite Approximations to Markov Decision Processes with Borel Spaces, Mathematics of Operations Research, 2017 (pdf).
  • S. Yüksel and N. Saldi, Convex Analysis in Decentralized Stochastic Control, Strategic Measures and Optimal Solutions, SIAM Journal on Control and Optimization, pp. 1-28, 2017 (pdf
  • S. Yüksel, Stationary and Ergodic Properties of Stochastic Non-Linear Systems Controlled over Communication Channels, SIAM Journal on Control and Optimization, pp. 2844-2871, 2016 (pdf) (ISIT'16)
  • N. Saldi, S. Yüksel and T. Linder, Finite Model Approximations and Asymptotic Optimality of Quantized Policies in Decentralized Stochastic Control, IEEE Trans. Automatic Control, vol 62, pp. 2360 - 2373, May 2017 (pdf).
  • G. Arslan and S. Yüksel, Decentralized Q-Learning for Stochastic Teams and Games, IEEE Trans. Automatic Control, vol. 62, pp. 1545 - 1558, April 2017 (pdf).
  • S. Saritas, S. Yüksel and S. Gezici, Quadratic Multi-Dimensional Signaling Games and Affine Equilibria, IEEE Trans. Automatic Control, vol. 62, pp. 605-619, Feb. 2017 (pdf).
  • N. Saldi, S. Yüksel and T. Linder, Near Optimality of Quantized Policies in Stochastic Control Under Weak Continuity Conditions, J. of Math. Analysis and Applications, v. 435, pp. 321-337, March 2016 (pdf).
  • R. Zurkowski, S. Yüksel and T. Linder, On Rates of Convergence for Markov Chains under Random Time State Dependent Drift Criteria, IEEE Trans. Automatic Control, v. 61, pp. 145-155, Jan. 2016 (pdf).
  • A. A. Zaidi, S. Yüksel, T. J. Oechtering, M. Skoglund, On the Tightness of Linear Policies for Stabilization of Linear Systems Over Gaussian NetworksSystems and Control Letters, v. 88, pp. 32-38, Feb. 2016 (pdf). 
  • N. Saldi, T. Linder and S. Yüksel, Output Constrained Lossy Source Coding with Limited Common Randomness, IEEE Trans. Information Theory,  vol. 61, pp. 4984-4998, Sep. 2015. (pdf)
  • A. Gupta, S. Yüksel, T. Basar and C. Langbort, On the Existence of Optimal Policies for a Class of Static and Sequential Dynamic Teams, SIAM Journal on Control and Optimization, vol. 53, pp. 1681-1712, 2015 (pdf) (arXiv).
  • N. Saldi, T. Linder and S. Yüksel, Asymptotic Optimality and Rates of Convergence of Quantized Stationary Policies in Stochastic Control, IEEE Trans. Automatic Control, vol. 60, pp. 553 -558, Feb. 2015 (pdf) (arXiv).
  • G. Arslan, F. Demirkol and S. Yüksel, On Games with Coupled Constraints IEEE Trans. Automatic Control, vol. 60, pp. 358-372, Feb. 2015 (pdf) (CDC'12).  
  • N. Saldi, T. Linder and S. Yüksel, Randomized Quantization and Source Coding  with Constrained Output Distribution, IEEE Trans. Information Theory, vol. 61, pp. 91-106, Jan. 2015 (arXiv) (pdf).
  • D. Quevedo, V. Gupta, J.W. Ma, and S. Yüksel, Stochastic Stability of Event-triggered Anytime Control, IEEE Trans. Automatic Control, vol. 59, pp. 3373-3379, December 2014 (pdf).
  • A. Ozcelikkale, S. Yüksel, H. M. Ozaktas Unitary Precoding and Basis Dependency of MMSE Performance for Gaussian Erasure Channels, IEEE Trans. Information Theory, v. 60, pp. 7186-7203, Nov. 2014 (arXiv).
  • T. Linder and S. Yüksel, On Optimal Zero-delay Coding of Vector Markov Sources IEEE Trans. Information Theory, v. 60., pp. 2975-5991, Oct. 2014. (pdf).
  • A. A. Zaidi, T. J. Oechtering, S. Yüksel, M. Skoglund, Stabilization of Linear Systems Over Gaussian Networks, IEEE Trans. Automatic Control, vol. 59, pp. 2369-2384, Sept. 2014 (pdf).
  • S. Yüksel, Jointly Optimal LQG Quantization and Control Policies for Multi-Dimensional Systems, IEEE Trans. Automatic Control, vol. 59, pp. 1612-1617, June 2014 (pdf).
  • A. Johnston and S. Yüksel, Stochastic Stabilization of Partially Observed and Multi-Sensor Systems Driven by Unbounded Noise under Fixed-Rate Information Constraints, IEEE Trans. Automatic Control, vol. 59, pp. 792-798, March 2014 (pdf); the longer version with complete proofs available on arXiv: (arXiv version)
  • N. Sen, F. Alajaji, S. Yüksel, G. Como, On the Multiple Access Channel with Asymmetric Noisy State Information at the Encoders IEEE Trans. Information Theory, vol. 59, pp. 7052-7070, November 2013 (pdf) (ISIT 2012).
  • W. Dai and S. Yüksel, Observability of a Linear System under Sparsity Constraints IEEE Trans. Automatic Control, pp. 2372-2376, vol 58, Sept. 2013 (pdf)(arXiv).
  • A. A. Zaidi, S. Yüksel, T. J. Oechtering, M. Skoglund, On Optimal Policies for Control and Estimation Over a Gaussian Relay Channel, Automatica (pdf) (conference version CDC 2011), September 2013.
  • S. Yüksel, On Optimal Causal Coding of Partially Observed Markov Sources in Single and Multi-Terminal Settings, IEEE Trans. Information Theory, vol. 59, pp. 424-437, January 2013 (pdf) (arXiv).
  • S. Yüksel and S. P. Meyn, Random-Time, State-Dependent Stochastic Drift for Markov Chains and Application to Stochastic Stabilization Over Erasure Channels, IEEE Trans. Automatic Control, vol. 58, pp. 47 - 59, January 2013 (pdf) (arXiv).
  • S. Yüksel, Characterization of Information Channels for Asymptotic Mean Stationarity and Stochastic Stability of Non-stationary/Unstable Linear Systems, IEEE Trans. Information Theory, vol. 58, pp. 6332-6354, October 2012 (pdf).
  • S. Yüksel and T. Linder, Optimization and Convergence of Observation Channels in Stochastic ControlSIAM Journal on Control and Optimization, vol. 50, no. 2, pp. 864-887, 2012 (pdf) (conf. ACC 2011).
  • S. Yüksel, A Tutorial on Quantizer Design for Networked Control Systems: Stabilization and Optimization, Applied and Computational Mathematics (pdf), vol.10, no.3, pp.365-403, 2011.
  • N. Sen, F. Alajaji, S. Yüksel, Feedback Capacity of a Class of Symmetric Finite-State Markov Channels, IEEE Trans. Information Theory, vol. 56, pp. 4110 - 4122, July 2011 (pdf).
  • S. Yüksel and T. Basar, Control over Noisy Forward and Reverse Channels, IEEE Trans. Automatic Control, pp. 1014-1029, vol 56, May 2011. (pdf).
  • G. Como and S. Yüksel, On the Capacity of Memoryless Finite State Multiple Access Channels with Asymmetric State Information at the Encoders, IEEE Trans. Information Theory, pp. 1267 - 1273, March 2011 (pdf).
  • S. Yüksel, Stochastic Stabilization of Noisy Linear Systems with Fixed-Rate Limited Feedback, IEEE Trans. Automatic Control, v. 55, pp. 2847-2853, Dec. 2010 (pdf).
  • S. Yüksel, Stochastic Nestedness and the Belief Sharing Information Pattern, IEEE Trans. Automatic Controlvol. 54, pp. 2773-2786, Dec. 2009 (pdf).
  • G. Como, S. Yüksel and S. Tatikonda The Error Exponent of Variable-Length Codes over Markov Channels with Feedback, IEEE Trans. Information Theory, vol. 55, pp. 2139-2160, May 2009 (pdf).
  • S. Yüksel and S. Tatikonda, A Counterexample in Distributed Optimal Sensing and Control, IEEE Trans. Automatic Control, vol. 54, pp. 841-844, April 2009 (pdf).
  • S. Yüksel and T. Basar Optimal Signaling Policies for Decentralized Multi-Controller Stabilizability over Communication Channels, IEEE Trans. Automatic Control, vol. 52, pp. 1969-1974, October 2007 (pdf).
  • S. Yüksel and T. Basar Communication Constraints for Decentralized Stabilizability with Time-Invariant Policies, IEEE Trans. Automatic Control,  vol. 52, pp. 1060-1066, June 2007. (pdf
  • S. Yüksel and T. Basar, Minimum Rate Coding for LTI Systems over Noiseless Channels, IEEE Trans. Automatic Control, v. 51, pp. 1878-1887, Dec. 2006. (pdf
  • O. C. Imer, S. Yüksel and T. Basar Optimal control of LTI systems over unreliable communication links, Automatica, vol. 42, pp. 1429-1440, Sept. 2006. (pdf

  • Book chapters

  • A. D. Kara and S. Yüksel Robustness to Approximations and Model Learning in MDPs and POMDPs in Modern Trends in Controlled Stochastic Processes: Theory and Applications, Volume III. A. B. Piunovskiy and Y. Zhang, editors, Luniver Press, Frome, UK 2021 (pdf).
  • S. Yüksel, Information and Communication Complexity of Networked Control Systems, Encyclopedia of Systems and Control (2nd Edition), Eds:J. Baillieul, T. Samad, Springer, 2019
  • N. Saldi, S.Yüksel and T. Linder, Finite Approximations to Markov Decision Processes with Borel Spaces, in Modern Trends in Controlled Stochastic Processes: Theory and Applications, Volume II. A. B. Piunovskiy, editor, Luniver Press, Frome, UK 2015.
  • S. Yüksel, Information and Communication Complexity of Networked Control Systems, Encyclopedia of Systems and Control, Eds:J. Baillieul, T. Samad, Springer, 2015 (pdf).
  • S. Yüksel, Design of Information Channels for Optimization and Stabilization in Networked Control, Information and Control in Networks. Eds: G. Como, B. Bernhardsson, A. Rantzer, Springer, 2014 (pdf). 
  • A. A. Zaidi, T. J. Oechtering, S. Yüksel, M. Skoglund, Stabilization and Control over Gaussian Networks, Information and Control in Networks. Eds:G. Como, B. Bernhardsson, A. Rantzer, Springer, 2014 (pdf)
  • S.Yüksel, T. Basar Causal Coding of Markov Sources with Continuous Alphabets, in Analysis and Design of Nonlinear Control Systems: In Honor of Alberto Isidori, A. Astolfi, L. Marconi (Eds.), Springer 2008. 

  • Conference and Other Publications

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