Usman A. Khan

ORCID

Publication Activity (10 Years)

Years Active: 2007-2024
Publications (10 Years): 93

Top Venues

CoRR

IEEE Trans. Autom. Control.

ACSSC

CDC

Publications

Evagoras Makridis, Gabriele Oliva, Kasagatta Ramesh Narahari, Mohammadreza Doostmohammadian, Usman A. Khan, Themistoklis Charalambous
Distributed Optimization with Gradient Tracking Over Heterogeneous Delay-Prone Directed Networks. ECC (2024)
Mohammadreza Doostmohammadian, Muhammad I. Qureshi, Mohammad Hossein Khalesi, Hamid R. Rabiee, Usman A. Khan
Log-Scale Quantization in Distributed First-Order Methods: Gradient-based Learning from Distributed Data. CoRR (2024)
Mohammadreza Doostmohammadian, Mohammad Pirani, Usman A. Khan
Consensus-based Networked Tracking in Presence of Heterogeneous Time-Delays. CoRR (2023)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
Variance Reduced Stochastic Optimization Over Directed Graphs with Row and Column Stochastic Weights. ACSSC (2023)
Muhammad I. Qureshi, Usman A. Khan
A Distributed Stochastic First-Order Method for Strongly Concave-Convex Saddle Point Problems. CDC (2023)
Mohammadreza Doostmohammadian, Alireza Aghasi, Maria Vrakopoulou, Hamid R. Rabiee, Usman A. Khan, Themistoklis Charalambous
Distributed delay-tolerant strategies for equality-constraint sum-preserving resource allocation. Syst. Control. Lett. 182 (2023)
Muhammad I. Qureshi, Usman A. Khan
A Distributed First-Order Optimization Method for Strongly Concave-Convex Saddle-Point Problems. CAMSAP (2023)
Mohammadreza Doostmohammadian, Alireza Aghasi, Maria Vrakopoulou, Hamid R. Rabiee, Usman A. Khan, Themistoklis Charalambous
Distributed Delay-Tolerant Strategies for Equality-Constraint Sum-Preserving Resource Allocation. CoRR (2023)
Muhammad I. Qureshi, Usman A. Khan
Distributed Saddle Point Problems for Strongly Concave-Convex Functions. IEEE Trans. Signal Inf. Process. over Networks 9 (2023)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
Push-SAGA: A Decentralized Stochastic Algorithm With Variance Reduction Over Directed Graphs. IEEE Control. Syst. Lett. 6 (2022)
Mohammadreza Doostmohammadian, Alireza Aghasi, Mohammad Pirani, Ehsan Nekouei, Usman A. Khan, Themistoklis Charalambous
Fast-Convergent Anytime-Feasible Dynamics for Distributed Allocation of Resources Over Switching Sparse Networks with Quantized Communication Links. ECC (2022)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
Variance reduced stochastic optimization over directed graphs with row and column stochastic weights. CoRR (2022)
Ran Xin, Usman A. Khan, Soummya Kar
A Fast Randomized Incremental Gradient Method for Decentralized Nonconvex Optimization. IEEE Trans. Autom. Control. 67 (10) (2022)
Mohammadreza Doostmohammadian, Usman A. Khan, Alireza Aghasi, Themistoklis Charalambous
Distributed Constraint-Coupled Optimization over Lossy Networks. CoRR (2022)
Muhammad I. Qureshi, Usman A. Khan
Stochastic First-Order Methods Over Distributed Data. SAM (2022)
Mohammadreza Doostmohammadian, Usman A. Khan, Mohammad Pirani, Themistoklis Charalambous
Consensus-Based Distributed Estimation in the Presence of Heterogeneous, Time-Invariant Delays. IEEE Control. Syst. Lett. 6 (2022)
Mohammadreza Doostmohammadian, Alireza Aghasi, Themistoklis Charalambous, Usman A. Khan
Distributed Support Vector Machines Over Dynamic Balanced Directed Networks. IEEE Control. Syst. Lett. 6 (2022)
Ran Xin, Usman A. Khan, Soummya Kar
Fast Decentralized Nonconvex Finite-Sum Optimization with Recursive Variance Reduction. SIAM J. Optim. 32 (1) (2022)
Muhammad I. Qureshi, Usman A. Khan
Distributed saddle point problems for strongly concave-convex functions. CoRR (2022)
Mohammadreza Doostmohammadian, Alireza Aghasi, Themistoklis Charalambous, Usman A. Khan
Distributed support-vector-machine over dynamic balanced directed networks. CoRR (2021)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
S-ADDOPT: Decentralized Stochastic First-Order Optimization Over Directed Graphs. IEEE Control. Syst. Lett. 5 (3) (2021)
Mohammadreza Doostmohammadian, Houman Zarrabi, Hamid R. Rabiee, Usman A. Khan, Themistoklis Charalambous
Distributed Detection and Mitigation of Biasing Attacks over Multi-Agent Networks. CoRR (2021)
Ran Xin, Usman A. Khan, Soummya Kar
A hybrid variance-reduced method for decentralized stochastic non-convex optimization. CoRR (2021)
Mohammadreza Doostmohammadian, Themistoklis Charalambous, Miadreza Shafie-khah, Hamid R. Rabiee, Usman A. Khan
Analysis of Contractions in System Graphs: Application to State Estimation. CoRR (2021)
Mohammadreza Doostmohammadian, Themistoklis Charalambous, Miadreza Shafie-khah, Nader Meskin, Usman A. Khan
Simultaneous Distributed Estimation and Attack Detection/Isolation in Social Networks: Structural Observability, Kronecker-Product Network, and Chi-Square Detector. CoRR (2021)
Mohammadreza Doostmohammadian, Houman Zarrabi, Hamid R. Rabiee, Usman A. Khan, Themistoklis Charalambous
Distributed Detection and Mitigation of Biasing Attacks Over Multi-Agent Networks. IEEE Trans. Netw. Sci. Eng. 8 (4) (2021)
Ran Xin, Usman A. Khan, Soummya Kar
An Improved Convergence Analysis for Decentralized Online Stochastic Non-Convex Optimization. IEEE Trans. Signal Process. 69 (2021)
Ran Xin, Usman A. Khan, Soummya Kar
A Hybrid Variance-Reduced Method for Decentralized Stochastic Non-Convex Optimization. ICML (2021)
Mohammadreza Doostmohammadian, Usman A. Khan, Themistoklis Charalambous
Delay-Tolerant Consensus-based Distributed Estimation: Full-Rank Systems with Potentially Unstable Dynamics. CoRR (2021)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
A Decentralized Variance-Reduced Method for Stochastic Optimization Over Directed Graphs. ICASSP (2021)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
Push-SAGA: A decentralized stochastic algorithm with variance reduction over directed graphs. CoRR (2020)
Ran Xin, Soummya Kar, Usman A. Khan
Gradient tracking and variance reduction for decentralized optimization and machine learning. CoRR (2020)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Usman A. Khan
Cyber-Social Systems: Modeling, Inference, and Optimal Design. IEEE Syst. J. 14 (1) (2020)
Mohammadreza Doostmohammadian, Usman A. Khan
Minimal Sufficient Conditions for Structural Observability/Controllability of Composite Networks via Kronecker Product. IEEE Trans. Signal Inf. Process. over Networks 6 (2020)
Ran Xin, Shi Pu, Angelia Nedic, Usman A. Khan
A General Framework for Decentralized Optimization With First-Order Methods. Proc. IEEE 108 (11) (2020)
Ran Xin, Usman A. Khan, Soummya Kar
A near-optimal stochastic gradient method for decentralized non-convex finite-sum optimization. CoRR (2020)
Ran Xin, Usman A. Khan, Soummya Kar
An improved convergence analysis for decentralized online stochastic non-convex optimization. CoRR (2020)
Mohammadreza Doostmohammadian, Usman A. Khan
On the Complexity of Minimum-Cost Networked Estimation of Self-Damped Dynamical Systems. IEEE Trans. Netw. Sci. Eng. 7 (3) (2020)
Ran Xin, Usman A. Khan, Soummya Kar
A fast randomized incremental gradient method for decentralized non-convex optimization. CoRR (2020)
Fakhteh Saadatniaki, Ran Xin, Usman A. Khan
Decentralized Optimization Over Time-Varying Directed Graphs With Row and Column-Stochastic Matrices. IEEE Trans. Autom. Control. 65 (11) (2020)
Ran Xin, Usman A. Khan, Soummya Kar
Variance-Reduced Decentralized Stochastic Optimization With Accelerated Convergence. IEEE Trans. Signal Process. 68 (2020)
Ran Xin, Shi Pu, Angelia Nedic, Usman A. Khan
A general framework for decentralized optimization with first-order methods. CoRR (2020)
Ran Xin, Boyue Li, Soummya Kar, Usman A. Khan
GT-SAGA: A fast incremental gradient method for decentralized finite-sum minimization. CDC (2020)
Ran Xin, Soummya Kar, Usman A. Khan
Decentralized Stochastic Optimization and Machine Learning: A Unified Variance-Reduction Framework for Robust Performance and Fast Convergence. IEEE Signal Process. Mag. 37 (3) (2020)
Muhammad I. Qureshi, Ran Xin, Soummya Kar, Usman A. Khan
S-ADDOPT: Decentralized stochastic first-order optimization over directed graphs. CoRR (2020)
Usman A. Khan, Waheed U. Bajwa, Angelia Nedic, Michael G. Rabbat, Ali H. Sayed
Optimization for Data-Driven Learning and Control. Proc. IEEE 108 (11) (2020)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Usman A. Khan
Centrality-based epidemic control in complex social networks. Soc. Netw. Anal. Min. 10 (1) (2020)
Ran Xin, Usman A. Khan
Distributed Heavy-Ball: A Generalization and Acceleration of First-Order Methods With Gradient Tracking. IEEE Trans. Autom. Control. 65 (6) (2020)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Usman A. Khan
Cyber-Social Systems: Modeling, Inference, and Optimal Design. CoRR (2019)
Mohammadreza Doostmohammadian, Usman A. Khan
Minimal Sufficient Conditions for Structural Observability/Controllability of Composite Networks via Kronecker Product. CoRR (2019)
Ran Xin, Usman A. Khan, Soummya Kar
Variance-Reduced Decentralized Stochastic Optimization with Accelerated Convergence. CoRR (2019)
Ran Xin, Usman A. Khan, Soummya Kar
Variance-Reduced Decentralized Stochastic Optimization with Gradient Tracking - Part II: GT-SVRG. CoRR (2019)
Ran Xin, Dusan Jakovetic, Usman A. Khan
Distributed Nesterov Gradient Methods Over Arbitrary Graphs. IEEE Signal Process. Lett. 26 (8) (2019)
Mohammadreza Doostmohammadian, Usman A. Khan
On the Controllability of Clustered Scale-Free Networks. CoRR (2019)
Ran Xin, Anit Kumar Sahu, Usman A. Khan, Soummya Kar
Distributed stochastic optimization with gradient tracking over strongly-connected networks. CoRR (2019)
Mohammadreza Doostmohammadian, Usman A. Khan
On the Complexity of Minimum-Cost Networked Estimation of Self-Damped Dynamical Systems. CoRR (2019)
Ran Xin, Dusan Jakovetic, Usman A. Khan
Distributed Nesterov gradient methods over arbitrary graphs. CoRR (2019)
Ran Xin, Anit Kumar Sahu, Usman A. Khan, Soummya Kar
Distributed stochastic optimization with gradient tracking over strongly-connected networks. CDC (2019)
Ran Xin, Chenguang Xi, Usman A. Khan
FROST - Fast row-stochastic optimization with uncoordinated step-sizes. EURASIP J. Adv. Signal Process. 2019 (2019)
Ran Xin, Soummya Kar, Usman A. Khan
Decentralized Stochastic First-Order Methods for Large-scale Machine Learning. CoRR (2019)
Ran Xin, Anit Kumar Sahu, Soummya Kar, Usman A. Khan
Distributed empirical risk minimization over directed graphs. ACSSC (2019)
Fakhteh Saadatniaki, Ran Xin, Usman A. Khan
Distributed Training with Mobile Agents: Optimization Over Dynamic Directed Graphs. DSW (2019)
Sam Safavi, Usman A. Khan, Soummya Kar, José M. F. Moura
Linear Distributed Algorithms For Localization In Mobile Networks. SSP (2018)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Usman A. Khan
Structural Cost-Optimal Design of Sensor Networks for Distributed Estimation. IEEE Signal Process. Lett. 25 (6) (2018)
Ran Xin, Chenguang Xi, Usman A. Khan
Subgradient Projection Over Directed Graphs Using Surplus Consensus. DSW (2018)
Fakhteh Saadatniaki, Usman A. Khan
Product adoption in heterogeneous networks: An epidemiological perspective. ACSSC (2018)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Houman Zarrabi, Usman A. Khan
Observational Equivalence in System Estimation: Contractions in Complex Networks. IEEE Trans. Netw. Sci. Eng. 5 (3) (2018)
Sam Safavi, Usman A. Khan, Soummya Kar, José M. F. Moura
Localization in internets of mobile agents: A linear approach. CoRR (2018)
Chenguang Xi, Van Sy Mai, Ran Xin, Eyad H. Abed, Usman A. Khan
Linear Convergence in Optimization Over Directed Graphs With Row-Stochastic Matrices. IEEE Trans. Autom. Control. 63 (10) (2018)
Fakhteh Saadatniaki, Anton Korniienko, Gérard Scorletti, Usman A. Khan
On the input-output approach towards distributed estimation. ECC (2018)
Sam Safavi, Usman A. Khan, Soummya Kar, José M. F. Moura
Distributed Localization: A Linear Theory. Proc. IEEE 106 (7) (2018)
Chenguang Xi, Ran Xin, Usman A. Khan
ADD-OPT: Accelerated Distributed Directed Optimization. IEEE Trans. Autom. Control. 63 (5) (2018)
Sam Safavi, Usman A. Khan
Localization in Mobile Networks via Virtual Convex Hulls. IEEE Trans. Signal Inf. Process. over Networks 4 (1) (2018)
Ran Xin, Usman A. Khan
A Linear Algorithm for Optimization Over Directed Graphs With Geometric Convergence. IEEE Control. Syst. Lett. 2 (3) (2018)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Usman A. Khan
Structural cost-optimal design of sensor networks for distributed estimation. CoRR (2018)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Houman Zarrabi, Usman A. Khan
Distributed Estimation Recovery Under Sensor Failure. IEEE Signal Process. Lett. 24 (10) (2017)
Chenguang Xi, Qiong Wu, Usman A. Khan
On the distributed optimization over directed networks. Neurocomputing 267 (2017)
Sam Safavi, Usman A. Khan
An opportunistic linear-convex algorithm for localization in mobile robot networks. CoRR (2017)
Sam Safavi, Usman A. Khan
Asymptotic Stability of LTV Systems With Applications to Distributed Dynamic Fusion. IEEE Trans. Autom. Control. 62 (11) (2017)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Houman Zarrabi, Usman A. Khan
Observational Equivalence in System Estimation: Contractions in Complex Networks. CoRR (2017)
Chenguang Xi, Usman A. Khan
DEXTRA: A Fast Algorithm for Optimization Over Directed Graphs. IEEE Trans. Autom. Control. 62 (10) (2017)
Chenguang Xi, Usman A. Khan
Distributed Subgradient Projection Algorithm Over Directed Graphs. IEEE Trans. Autom. Control. 62 (8) (2017)
Chenguang Xi, Usman A. Khan
Optimization over directed graphs: Linear convergence rate. ICASSP (2017)
Sam Safavi, Usman A. Khan
An Opportunistic Linear-Convex Algorithm for Localization in Mobile Robot Networks. IEEE Trans. Robotics 33 (4) (2017)
Mohammadreza Doostmohammadian, Hamid R. Rabiee, Houman Zarrabi, Usman A. Khan
Distributed Estimation Recovery under Sensor Failure. CoRR (2017)
Mohammadreza Doostmohammadian, Usman A. Khan
Measurement partitioning and observational equivalence in state estimation. ICASSP (2016)
Usman A. Khan, Shuchin Aeron
Distributed Subspace Consensus in the Presence of Dynamic In-Network Disturbance. IEEE Trans. Control. Netw. Syst. 3 (3) (2016)
Anton Korniienko, Usman A. Khan, Gérard Scorletti
Robust sensor localization with locally-computed, global H∞-design. ACC (2016)
Sam Safavi, Usman A. Khan
Unbounded connectivity: Asymptotic stability criteria for stochastic LTV systems. ACC (2016)
Chenguang Xi, Usman A. Khan
Distributed dynamic optimization over directed graphs. CDC (2016)
Sam Safavi, Usman A. Khan
A distributed range-based algorithm for localization in mobile networks. ACSSC (2016)
Sam Safavi, Usman A. Khan
On the convergence of time-varying fusion algorithms: Application to localization in dynamic networks. CDC (2016)
Chenguang Xi, Qiong Wu, Usman A. Khan
Fast distributed optimization over directed graphs. ACC (2016)
Sam Safavi, Usman A. Khan
Dynamic leader-follower algorithms in mobile multi-agent networks. DSP (2015)
Sam Safavi, Usman A. Khan
Localization and tracking in mobile networks: Virtual convex hulls and beyond. CoRR (2015)
Sam Safavi, Usman A. Khan
Revisiting Finite-Time Distributed Algorithms via Successive Nulling of Eigenvalues. IEEE Signal Process. Lett. 22 (1) (2015)
Sam Safavi, Usman A. Khan
Leader-Follower Consensus in Mobile Sensor Networks. IEEE Signal Process. Lett. 22 (12) (2015)
Chenguang Xi, Usman A. Khan
Directed-Distributed Gradient Descent. Allerton (2015)
Usman A. Khan, Anton Korniienko, Karl Henrik Johansson
An H∞-based approach for robust sensor localization. CDC (2015)
Usman A. Khan, Soummya Kar, José M. F. Moura
Linear Theory for Self-Localization: Convexity, Barycentric Coordinates, and Cayley-Menger Determinants. IEEE Access 3 (2015)

Usman A. Khan.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Usman A. Khan