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cs.DS2026
An Efficient Private Algorithm for Community Detection
Vincent Cohen-Addad, Alessandro Epasto, Haim Kaplan +2
In this paper, we study the community detection problem in the stochastic block model (SBM) under privacy constraints. We introduce private and highly efficient algorithms for exac…
cs.LG2026
Retriever Portfolios: A Principled Approach to Adaptive RAG
Miltiadis Stouras, Vincent Cohen-Addad, Silvio Lattanzi +1
Retrieval-augmented generation (RAG) systems typically rely on a single retriever and a single set of hyperparameters, despite facing highly heterogeneous queries that range from s…