740 citations · 3.9k across the 136 of their papers we have counts for
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Distributed Convergence Verification for Gaussian Belief Propagation
Jian Du, Soummya Kar, José M. F. Moura
Gaussian belief propagation (BP) is a computationally efficient method to approximate the marginal distribution and has been widely used for inference with high dimensional data as…
Fast Path Localization on Graphs via Multiscale Viterbi Decoding
Yaoqing Yang, Siheng Chen, Mohammad Ali Maddah-Ali +3
We consider a problem of localizing a path-signal that evolves over time on a graph. A path-signal can be viewed as the trajectory of a moving agent on a graph in several consecuti…
Revisiting Normalized Gradient Descent: Fast Evasion of Saddle Points
Ryan Murray, Brian Swenson, Soummya Kar
The note considers normalized gradient descent (NGD), a natural modification of classical gradient descent (GD) in optimization problems. A serious shortcoming of GD in non-convex…
Topology Adaptive Graph Convolutional Networks
Jian Du, Shanghang Zhang, Guanhang Wu +2
Spectral graph convolutional neural networks (CNNs) require approximation to the convolution to alleviate the computational complexity, resulting in performance loss. This paper pr…
Resilient Distributed Estimation: Sensor Attacks
Yuan Chen, Soummya Kar, José M. F. Moura
This paper studies multi-agent distributed estimation under sensor attacks. Individual agents make sensor measurements of an unknown parameter belonging to a compact set, and, at e…
On the Exponential Rate of Convergence of Fictitious Play in Potential Games
Brian Swenson, Soummya Kar
The paper studies fictitious play (FP) learning dynamics in continuous time. It is shown that in almost every potential game, and for almost every initial condition, the rate of co…