Wei Zhan

Parallel Repetition for the GHZ Game: A Simpler Proof

2021 · DROPS (Schloss Dagstuhl – Leibniz Center for Informatics)

We give a new proof of the fact that the parallel repetition of the (3-player) GHZ game reduces the value of the game to zero polynomially quickly. That is, we show that the value of …

An Efficient General-Purpose Modular Vision Model via Multi-Task Heterogeneous Training

2023 · arXiv (Cornell University)

We present a model that can perform multiple vision tasks and can be adapted to other downstream tasks efficiently. Despite considerable progress in multi-task learning, most efforts focus on learning from multi-label data: a single …

Quantifying Agent Interaction in Multi-agent Reinforcement Learning for Cost-efficient Generalization

2023 · arXiv (Cornell University)

Generalization poses a significant challenge in Multi-agent Reinforcement Learning (MARL). The extent to which an agent is influenced by unseen co-players depends on the agent's policy and the specific scenario. A quantitative examination of this …