44 citations · 103 across the 28 of their papers we have counts for
31 papers
Private & Common Information States in Decentralized Team Equilibrium via Dynamic Programming for POMDPs with Delayed Sharing
Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi
Witsenhausen, in his seminal 1971 paper [1], introduced decentralized partially observable Markov decision problems (POMDPs), with multiple agents or controls operating under T-ste…
Comments and Corrections on the DP Equations of Paper "On Team Decision Problems With Nonclassical Information Structures"
Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi
The 2023 paper ``On Team Decision Problems With Nonclassical Information Structures'' [1] presented information states and dynamic programming (DP) equations for delayed sharing in…
Distributed Attraction-Repulsion Potential for Multi-Agent Formation Control
Hemanta Ban, Seddik M. Djouadi, Kevin Tomsovic
In this paper, a distributed multi-agent formation control driven by the gradient of the Lennard-Jones potential is analyzed. For collision-free initial data, we prove global well-…
Private and Common Information States in Decentralized Parallel Dynamic Programming for Delayed Sharing Patterns
Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi
This paper develops a dynamic programming (DP) approach for decentralized stochastic optimal control problems with delayed sharing information patterns, which exhibits the fundamen…
General Decentralized Stochastic Optimal Control via Change of Measure: Applications to the Witsenhausen Counterexample
Bhagyashri Telsang, Seddik Djouadi, Charalambos D. Charalambous
In this paper we present global and person-by-person (PbP) optimality conditions for general decentralized stochastic dynamic optimal control problems, using a discrete-time versio…
Graph Neural Network Framework for Security Assessment Informed by Topological Measures
Mojtaba Dezvarei, Kevin Tomsovic, Jinyuan Stella Sun +1
In the power system, security assessment (SA) plays a pivotal role in determining the safe operation in a normal situation and some contingencies scenarios. Electrical variables as…