3 papers
cs.SE2026
TRACER: A Semantic-Aware Framework for Fine-Grained Contamination Detection in Code LLMs
Yifeng Di, Xuliang Huang, Tianyi Zhang
Data contamination is a known threat to the reliability of model evaluation. However, it remains underexplored in code large language models (LLMs), where contamination often goes…
cs.CL2026
Mango: Multi-Agent Web Navigation via Global-View Optimization
Weixi Tong, Yifeng Di, Tianyi Zhang
Existing web agents typically initiate exploration from the root URL, which is inefficient for complex websites with deep hierarchical structures. Without a global view of the webs…
cs.SE2025
Enhancing Code Generation via Bidirectional Comment-Level Mutual Grounding
Yifeng Di, Tianyi Zhang
Large Language Models (LLMs) have demonstrated unprecedented capability in code generation. However, LLM-generated code is still plagued with a wide range of functional errors, esp…