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Dongxie Wen

2 accepted papers

2026

Revisiting Matrix Sketching in Linear Bandits: Achieving Sublinear Regret via Dyadic Block Sketching

ICLR 2026poster

Linear bandits have become a cornerstone of online learning and sequential decision-making, providing solid theoretical foundations for balancing exploration and exploitation. Within this domain, matrix sketching serves as a critical component for achieving computational efficiency, especially when…

Cited by 0SourceScholar
2025

Fast Second-Order Online Kernel Learning Through Incremental Matrix Sketching and Decomposition

IJCAI 2025

Second-order Online Kernel Learning (OKL) has attracted considerable research interest due to its promising predictive performance in streaming environments. However, existing second-order OKL approaches suffer from at least quadratic time complexity with respect to the pre-set budget, rendering the

Cited by 0SourcePDFScholar