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most citedPosterior contraction in sparse Bayesian factor models for massive covariance matrices

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math.ST2026

Frequentist Regret Analysis of Gaussian Process Thompson Sampling via Fractional Posteriors

Somjit Roy, Prateek Jaiswal, Anirban Bhattacharya +2

We study Gaussian Process Thompson Sampling (GP-TS) for sequential decision-making over compact, continuous action spaces and provide a frequentist regret analysis based on fractio…