collaborators

6 papers

cs.SE2026

Adaptive-GEPA: Make Your Harness Fit Heterogeneous Requests

Tianyu Chen, Yasi Zhang, Ruiyi Wang +3

Reflective optimizers such as GEPA improve language model prompts from execution traces and evaluator feedback; full-program extensions can also rewrite tools and control flow. In…

cs.SE2026

From Patches to Trajectories: Privileged Process Supervision for Software-Engineering Agents

Murong Ma, Tianyu Chen, Yun Lin +7

Supervised fine-tuning (SFT) on long teacher trajectories is the dominant way to instill investigation and reasoning in open software-engineering (SWE) agents. Since every retained…

cs.SE2026

Pull Requests as a Training Signal for Repo-Level Code Editing

Qinglin Zhu, Tianyu Chen, Shuai Lu +8

Repository-level code editing requires models to understand complex dependencies and execute precise multi-file modifications across a large codebase. While recent gains on SWE-ben…

cs.SE2026

Reducing the Costs of Proof Synthesis on Rust Systems by Scaling Up a Seed Training Set

Nongyu Di, Tianyu Chen, Shan Lu +6

Large Language Models (LLMs) are widely used for code generation. However, the correctness of code generated by LLMs remains a concern. A potential remedy to this concern is to hav…

cs.CL2025

Sigma-MoE-Tiny Technical Report

Qingguo Hu, Zhenghao Lin, Ziyue Yang +12

Mixture-of-Experts (MoE) has emerged as a promising paradigm for foundation models due to its efficient and powerful scalability. In this work, we present Sigma-MoE-Tiny, an MoE la…

cs.DC2025

SIGMA: An AI-Empowered Training Stack on Early-Life Hardware

Lei Qu, Lianhai Ren, Peng Cheng +12

An increasing variety of AI accelerators is being considered for large-scale training. However, enabling large-scale training on early-life AI accelerators faces three core challen…