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Sayak Chakrabarty

4 accepted papers

2026

CLoVE: Personalized Federated Learning through Clustering of Loss Vector Embeddings

ICML 2026poster

We propose CLoVE (Clustering of Loss Vector Embeddings), a novel algorithm for Clustered Federated Learning (CFL). In CFL, clients are naturally grouped into clusters based on their data distribution. However, identifying these clusters is challenging, as client assignments are unknown. CLoVE utiliz…

Cited by 0SourceScholar
2025

Small Resamples, Sharp Guarantees: Convergence Rates for Resampled Studentized Quantile Estimators

NeurIPS 2025poster

The m-out-of-n bootstrap—proposed by \cite{bickel1992resampling}—approximates the distribution of a statistic by repeatedly drawing $m$ subsamples ($m \ll n$) without replacement from an original sample of size n; it is now routinely used for robust inference with heavy-tailed data, bandwidth select…

Cited by 0SourceScholar
2023

On the Consistency of Maximum Likelihood Estimation of Probabilistic Principal Component Analysis

NeurIPS 2023poster

Probabilistic principal component analysis (PPCA) is currently one of the most used statistical tools to reduce the ambient dimension of the data. From multidimensional scaling to the imputation of missing data, PPCA has a broad spectrum of applications ranging from science and engineering to quanti…

Cited by 1SourcePDFScholar
2023

Single-Pass Pivot Algorithm for Correlation Clustering. Keep it simple!

NeurIPS 2023poster

We show that a simple single-pass semi-streaming variant of the Pivot algorithm for Correlation Clustering gives a (3+eps)-approximation using O(n/eps) words of memory. This is a slight improvement over the recent results of Cambus, Kuhn, Lindy, Pai, and Uitto, who gave a (3+eps)-approximation using…

Cited by 20SourcePDFScholar