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Xuxing Chen

3 accepted papers

2024

Stochastic Optimization Algorithms for Instrumental Variable Regression with Streaming Data

NeurIPS 2024poster

We develop and analyze algorithms for instrumental variable regression by viewing the problem as a conditional stochastic optimization problem. In the context of least-squares instrumental variable regression, our algorithms neither require matrix inversions nor mini-batches thereby providing a full…

Cited by 3SourcePDFScholar
2023

A one-sample decentralized proximal algorithm for non-convex stochastic composite optimization

UAI 2023poster

We focus on decentralized stochastic non-convex optimization, where $n$ agents work together to optimize a composite objective function which is a sum of a smooth term and a non-smooth convex term. To solve this problem, we propose two single-time scale algorithms: \texttt{Prox-DASA} and \texttt{Pro…

2023

Decentralized Stochastic Bilevel Optimization with Improved per-Iteration Complexity

ICML 2023poster

Bilevel optimization recently has received tremendous attention due to its great success in solving important machine learning problems like meta learning, reinforcement learning, and hyperparameter optimization. Extending single-agent training on bilevel problems to the decentralized setting is a n…

Cited by 35SourcePDFScholar