collaborators

6 papers

cs.CL2026

Paraphrase Types Elicit Prompt Engineering Capabilities

Jan Philip Wahle, Terry Ruas, Yang Xu +1

Much of the success of modern language models depends on finding a suitable prompt to instruct the model. Until now, it has been largely unknown how variations in the linguistic ex…

cs.CL2026

A Unified View of Attention and Residual Sinks: Outlier-Driven Rescaling is Essential for Transformer Training

Zihan Qiu, Zeyu Huang, Kaiyue Wen +16

We investigate the functional role of emergent outliers in large language models, specifically attention sinks (a few tokens that consistently receive large attention logits) and r…

cs.CL2025

Teaching LLMs to Abstain via Fine-Grained Semantic Confidence Reward

Hao An, Yang Xu

Mitigating hallucinations in Large Language Models (LLMs) is critical for their reliable deployment. Existing methods typically fine-tune LLMs to abstain from answering questions b…

cs.CL2025

MULTI: Multimodal Understanding Leaderboard with Text and Images

Zichen Zhu, Yang Xu, Lu Chen +11

The rapid development of multimodal large language models (MLLMs) raises the question of how they compare to human performance. While existing datasets often feature synthetic or o…

cs.SE2025

Towards Better Correctness and Efficiency in Code Generation

Yunlong Feng, Yang Xu, Xiao Xu +2

While code large language models have demonstrated remarkable progress in code generation, the generated code often exhibits poor runtime efficiency, limiting its practical applica…

cs.CL2025

OpenCoder: The Open Cookbook for Top-Tier Code Large Language Models

Siming Huang, Tianhao Cheng, J. K. Liu +16

Large language models (LLMs) for code have become indispensable in various domains, including code generation, reasoning tasks and agent systems. While open-access code LLMs are in…