collaborators

16 papers

cs.CL2026

When Implausible Tokens Get Reinforced: Tail-Aware Credit Calibration for LLM Reinforcement Learning

Xiuyi Lou, Zicheng Xu, Yu-Neng Chuang +4

Reinforcement learning (RL) has achieved remarkable success in enhancing the reasoning capabilities of large language models (LLMs). However, widely used critic-free RL methods rel…

cs.CL2026

Learning at the Right Pace: Adaptive Data Scheduling Improves LLM Reinforcement Learning

Zicheng Xu, Ruixuan Zhang, Yu-Neng Chuang +7

Large Language Models (LLMs) achieve remarkable reasoning capabilities through reinforcement learning (RL) post-training. However, existing RL post-training commonly relies on unif…

cs.AI2026

A Survey on Evaluating Quality and Trustworthiness in LLM-Generated Data

Kaituo Zhang, Mingzhi Hu, Hoang Anh Duy Le +9

Large Language Models (LLMs) have emerged as powerful tools for generating data across various modalities. By transforming data from a scarce resource into a controllable asset, LL…

cs.AI2026

Training-Free Time Series Classification via In-Context Reasoning with LLM Agents

Songyuan Sui, Zihang Xu, Xia Hu

Time series classification (TSC) spans diverse application scenarios, yet labeled data are often scarce, making task-specific training costly and inflexible. Recent reasoning-orien…

cs.CL2026

Demystifying OPD: Length Inflation and Stabilization Strategies for Large Language Models

Feng Luo, Yu-Neng Chuang, Guanchu Wang +4

On-policy distillation (OPD) trains student models under their own induced distribution while leveraging supervision from stronger teachers. We identify a failure mode of OPD: as t…

cs.LG2026

LTSM-Bundle: A Toolbox and Benchmark on Large Language Models for Time Series Forecasting

Yu-Neng Chuang, Songchen Li, Jiayi Yuan +11

Time Series Forecasting (TSF) has long been a challenge in time series analysis. Inspired by the success of Large Language Models (LLMs), researchers are now developing Large Time…