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Han-Tao Yang

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#machine learning Preprint Sep 2026

Efficient Linear Bandits via Cluster-Aware Sketching

This work introduces a clustering mechanism and proposes the Cluster Sketch Linear Bandit algorithm, which preserves the full covariance information in each cluster to guarantee robust sublinear regret without spectral-tail vulnerabilities, performs cluster switching by assigning a sentinel for each cluster, and reduce...

Han-Tao Yang, Hong Xie, De-Fu Lian · 0 citations