collaborators

16 papers

cs.AI2026

SPARK: Skeleton-Guided Reasoning Synthesis from Large-Scale Scientific Literature

Yu Li, Wei Li, Xin Gao +4

Scientific reasoning remains challenging for open-source models, largely due to the lack of high-quality scientific reasoning data. Existing datasets are often dominated by factual…

cs.AI2026

Benchmarks for Trajectory Safety Evaluation and Diagnosis in OpenClaw and Codex: ATBench-Claw and ATBench-Codex

Zhonghao Yang, Yu Li, Yanxu Zhu +6

As agent systems move into increasingly diverse execution settings, trajectory-level safety evaluation and diagnosis require benchmarks that evolve with them. ATBench is a diverse…

cs.AI2026

Tracing the Roots: A Multi-Agent Framework for Uncovering Data Lineage in Post-Training LLMs

Yu Li, Xiaoran Shang, Qizhi Pei +11

Post-training data plays a pivotal role in shaping the capabilities of Large Language Models (LLMs), yet datasets are often treated as isolated artifacts, overlooking the systemic…

cs.CV2026

Scientific Image Synthesis: Benchmarking, Methodologies, and Downstream Utility

Honglin Lin, Zheng Liu, Chonghan Qin +7

While synthetic data has proven effective for improving scientific reasoning in the text domain, multimodal reasoning remains constrained by the difficulty of synthesizing scientif…

cs.CV2026

ChartVerse: Scaling Chart Reasoning via Reliable Programmatic Synthesis from Scratch

Zheng Liu, Honglin Lin, Chonghan Qin +13

Chart reasoning is a critical capability for Vision Language Models (VLMs). However, the development of open-source models is severely hindered by the lack of high-quality training…

cs.AI2025

OpenDataArena: A Fair and Open Arena for Benchmarking Post-Training Dataset Value

Mengzhang Cai, Xin Gao, Yu Li +13

The rapid evolution of Large Language Models (LLMs) is predicated on the quality and diversity of post-training datasets. However, a critical dichotomy persists: while models are r…

cs.CL2025

Scaling Code-Assisted Chain-of-Thoughts and Instructions for Model Reasoning

Honglin Lin, Qizhi Pei, Xin Gao +5

Reasoning capability is pivotal for Large Language Models (LLMs) to solve complex tasks, yet achieving reliable and scalable reasoning remains challenging. While Chain-of-Thought (…

cs.LG2025

ScaleDiff: Scaling Difficult Problems for Advanced Mathematical Reasoning

Qizhi Pei, Zhuoshi Pan, Honglin Lin +6

Large Reasoning Models (LRMs) have shown impressive capabilities in complex problem-solving, often benefiting from training on difficult mathematical problems that stimulate intric…

cs.AI2025

Can One Domain Help Others? A Data-Centric Study on Multi-Domain Reasoning via Reinforcement Learning

Yu Li, Zhuoshi Pan, Honglin Lin +3

Reinforcement Learning with Verifiable Rewards (RLVR) has emerged as a powerful paradigm for enhancing the reasoning capabilities of LLMs. Existing research has predominantly conce…

cs.CL2025

REST: Stress Testing Large Reasoning Models by Asking Multiple Problems at Once

Zhuoshi Pan, Qizhi Pei, Yu Li +5

Recent Large Reasoning Models (LRMs) have achieved remarkable progress on task-specific benchmarks, yet their evaluation methods remain constrained by isolated problem-solving para…

cs.AI2025

IDEAL: Data Equilibrium Adaptation for Multi-Capability Language Model Alignment

Chenlin Ming, Chendi Qu, Mengzhang Cai +6

Large Language Models (LLMs) have achieved impressive performance through Supervised Fine-tuning (SFT) on diverse instructional datasets. When training on multiple capabilities sim…

cs.CR2025

CipherBank: Exploring the Boundary of LLM Reasoning Capabilities through Cryptography Challenges

Yu Li, Qizhi Pei, Mengyuan Sun +6

Large language models (LLMs) have demonstrated remarkable capabilities, especially the recent advancements in reasoning, such as o1 and o3, pushing the boundaries of AI. Despite th…

cs.CL2025

A Strategic Coordination Framework of Small LLMs Matches Large LLMs in Data Synthesis

Xin Gao, Qizhi Pei, Zinan Tang +5

While data synthesis and distillation are promising strategies to enhance small language models, current approaches heavily rely on Large Language Models (LLMs), which suffer from…

cs.CL2025

MetaLadder: Ascending Mathematical Solution Quality via Analogical-Problem Reasoning Transfer

Honglin Lin, Zhuoshi Pan, Yu Li +5

Large Language Models (LLMs) have demonstrated promising capabilities in solving mathematical reasoning tasks, leveraging Chain-of-Thought (CoT) data as a vital component in guidin…

cs.LG2025

LEMMA: Learning from Errors for MatheMatical Advancement in LLMs

Zhuoshi Pan, Yu Li, Honglin Lin +7

Large language models (LLMs) have demonstrated remarkable reasoning capability in solving mathematical problems. However, existing approaches primarily focus on improving the quali…

cs.CL2025

MathFusion: Enhancing Mathematical Problem-solving of LLM through Instruction Fusion

Qizhi Pei, Lijun Wu, Zhuoshi Pan +6

Large Language Models (LLMs) have shown impressive progress in mathematical reasoning. While data augmentation is promising to enhance mathematical problem-solving ability, current…