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Tianchen Zhou

3 accepted papers

2024

Finite-Time Convergence and Sample Complexity of Actor-Critic Multi-Objective Reinforcement Learning

ICML 2024poster

Reinforcement learning with multiple, potentially conflicting objectives is pervasive in real-world applications, while this problem remains theoretically under-explored. This paper tackles the multi-objective reinforcement learning (MORL) problem and introduces an innovative actor-critic algorithm…

Cited by 4SourcePDFScholar
2022

Bandit Learning with Joint Effect of Incentivized Sampling, Delayed Sampling Feedback, and Self-Reinforcing User Preferences

ICLR 2022poster

In this paper, we consider a new multi-armed bandit (MAB) framework motivated by three common complications in online recommender systems in practice: (i) the platform (learning agent) cannot sample an intended product directly and has to incentivize customers to select this product (e.g., promotion…

Cited by 0SourcePDFScholar
2021

Incentivized Bandit Learning with Self-Reinforcing User Preferences

ICML 2021spotlight

In this paper, we investigate a new multi-armed bandit (MAB) online learning model that considers real-world phenomena in many recommender systems: (i) the learning agent cannot pull the arms by itself and thus has to offer rewards to users to incentivize arm-pulling indirectly; and (ii) if users wi…

Cited by 6SourcePDFScholar