2 papers
cs.SI2026
U-centrality: A Network Centrality Measure Based on Minimum Energy Control for Laplacian Dynamics
Xinran Zheng, Leonardo Massai, Massimo Franceschetti +1
Network centrality is a foundational concept for quantifying the importance of nodes within a network. Many traditional centrality measures--such as degree and betweenness centrali…
math.OC2026
Convex and Non-convex Federated Learning with Stale Stochastic Gradients: Diminishing Step Size is All You Need
Xinran Zheng, Tara Javidi, Behrouz Touri
We propose a general framework for distributed stochastic optimization under delayed gradient models. In this setting, local agents leverage their own data and computation to a…