7 citations · 17 across the 11 of their papers we have counts for
8 papers · 1 filter
Minimal Sufficient Conditions for Structural Observability/Controllability of Composite Networks via Kronecker Product
Mohammadreza Doostmohammadian, Usman A. Khan
In this paper, we consider composite networks formed from the Kronecker product of smaller networks. We find the observability and controllability properties of the product network…
Variance-Reduced Decentralized Stochastic Optimization with Accelerated Convergence
Ran Xin, Usman A. Khan, Soummya Kar
This paper describes a novel algorithmic framework to minimize a finite-sum of functions available over a network of nodes. The proposed framework, that we call~\GTVR, is stochasti…
On the Complexity of Minimum-Cost Networked Estimation of Self-Damped Dynamical Systems
Mohammadreza Doostmohammadian, Usman Khan
In this paper, we consider the optimal design of networked estimators to minimize the communication/measurement cost under the networked observability constraint. This problem is k…
Variance-Reduced Decentralized Stochastic Optimization with Gradient Tracking -- Part II: GT-SVRG
Ran Xin, Usman A. Khan, Soummya Kar
Decentralized stochastic optimization has recently benefited from gradient tracking methods \cite{DSGT_Pu,DSGT_Xin} providing efficient solutions for large-scale empirical risk min…
Digital synthesis of multistage etalons for enhancing the FSR
Faiza Iftikhar, Usman Khan, M. Imran Cheema
Fabry-Perot fiber etalons (FPE) built from three or more reflectors are attractive for a variety of applications including communications and sensing. For accelerating a research a…
Variance-Reduced Decentralized Stochastic Optimization with Gradient Tracking--Part I: GT-SAGA
Ran Xin, Usman A. Khan, Soummya Kar
In this paper, we study decentralized empirical risk minimization problems, where the goal is to minimize a finite-sum of smooth and strongly-convex functions available over a netw…