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Yu-zhen Janice Chen

5 accepted papers

2025

Quantum Best Arm Identification with Quantum Oracles

AAAI 2025technical

Best arm identification (BAI) is a key problem in stochastic multi-armed bandits, where K arms each has an associated reward distribution, and the objective is to minimize the number of queries needed to identify the best arm with high confidence. In this paper, we explore BAI using quantum oracles.…

Cited by 0SourcePDFScholar
2023

Achieving Near-Optimal Individual Regret & Low Communications in Multi-Agent Bandits

ICLR 2023poster

Cooperative multi-agent multi-armed bandits (CM2AB) study how distributed agents cooperatively play the same multi-armed bandit game. Most existing CM2AB works focused on maximizing the group performance of all agents---the accumulation of all agents' individual performance (i.e., individual reward)…

Cited by 13SourcePDFScholar
2023

Exploration for Free: How Does Reward Heterogeneity Improve Regret in Cooperative Multi-agent Bandits?

UAI 2023poster

This paper studies a cooperative multi-agent bandit scenario in which the rewards observed by agents are heterogeneous—one agent’s meat can be another agent’s poison. Specifically, the total reward observed by each agent is the sum of two values: an arm-specific reward, capturing the intrinsic value…

Cited by 2SourcePDFScholar
2023

On-Demand Communication for Asynchronous Multi-Agent Bandits

AISTATS 2023poster

This paper studies a cooperative multi-agent multi-armed stochastic bandit problem where agents operate asynchronously – agent pull times and rates are unknown, irregular, and heterogeneous – and face the same instance of a K-armed bandit problem. Agents can share reward information to speed up the…

Cited by 10SourcePDFScholar
2021

Cooperative Stochastic Bandits with Asynchronous Agents and Constrained Feedback

NeurIPS 2021poster

This paper studies a cooperative multi-armed bandit problem with $M$ agents cooperating together to solve the same instance of a $K$-armed stochastic bandit problem with the goal of maximizing the cumulative reward of agents. The agents are heterogeneous in (i) their limited access to a local subset…

Cited by 32SourcePDFScholar