Search Results for author: Chao-Kai Chiang

Found 6 papers, 1 papers with code

Unified Risk Analysis for Weakly Supervised Learning

no code implementations15 Sep 2023 Chao-Kai Chiang, Masashi Sugiyama

The analysis component of the framework, viewed as a decontamination process, provides a systematic method of conducting risk rewrite.

Weakly-supervised Learning

The Choice of Noninformative Priors for Thompson Sampling in Multiparameter Bandit Models

no code implementations28 Feb 2023 Jongyeong Lee, Chao-Kai Chiang, Masashi Sugiyama

Although the uniform prior is shown to be optimal, we highlight the inherent limitation of its optimality, which is limited to specific parameterizations and emphasizes the significance of the invariance property of priors.

Multi-Armed Bandits Thompson Sampling

Optimality of Thompson Sampling with Noninformative Priors for Pareto Bandits

no code implementations3 Feb 2023 Jongyeong Lee, Junya Honda, Chao-Kai Chiang, Masashi Sugiyama

In addition to the empirical performance, TS has been shown to achieve asymptotic problem-dependent lower bounds in several models.

Thompson Sampling

Hyper-parameter Tuning under a Budget Constraint

no code implementations1 Feb 2019 Zhiyun Lu, Chao-Kai Chiang, Fei Sha

We study a budgeted hyper-parameter tuning problem, where we optimize the tuning result under a hard resource constraint.

Decision Making

Federated Multi-Task Learning

2 code implementations NeurIPS 2017 Virginia Smith, Chao-Kai Chiang, Maziar Sanjabi, Ameet Talwalkar

Federated learning poses new statistical and systems challenges in training machine learning models over distributed networks of devices.

BIG-bench Machine Learning Federated Learning +1

An algorithm with nearly optimal pseudo-regret for both stochastic and adversarial bandits

no code implementations27 May 2016 Peter Auer, Chao-Kai Chiang

We present an algorithm that achieves almost optimal pseudo-regret bounds against adversarial and stochastic bandits.

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