Chenghao Yang

Efficient Shapley Values Estimation by Amortization for Text Classification

2023 · arXiv (Cornell University)

Despite the popularity of Shapley Values in explaining neural text classification models, computing them is prohibitive for large pretrained models due to a large number of model evaluations. In practice, Shapley Values are often estimated …

Let it Calm: Exploratory Annealed Decoding for Verifiable Reinforcement Learning

2025 · arXiv (Cornell University)

Reinforcement learning with verifiable rewards (RLVR) is a powerful paradigm for enhancing the reasoning capabilities of large language models (LLMs), yet its success hinges on effective exploration. An ideal exploration strategy must navigate two fundamental …