collaborators

9 papers

cs.AI2026

RuleTrek: Benchmarking Agentic Rule Reasoning in Complex Scenarios

Chenhao Yuan, Bohan Yu, Yinhao Xu +10

Large language models (LLMs) increasingly tackle complex real-world tasks in specialized domains. However, identifying and correctly applying domain-specific rules remains challeng…

cs.CL2026

Beyond Factual Knowledge: Benchmarking and Learning Step-Level Procedural Rule Reasoning in Large Language Models

Bohan Yu, Pengfei Cao, Chen Han +7

Large language models (LLMs) excel at text understanding and generation, yet still struggle to reliably understand and apply externally provided procedural rules at scale. To evalu…

cs.AI2026

Quantization Degradation in Large Language Models: A Signal-Noise Perspective

Chenxi Zhou, Pengfei Cao, Jinyu Ye +5

Post-training quantization reduces the deployment cost of large language models, yet how severely a quantized model degrades is not determined by bit-width alone. We systematically…

cs.CL2026

LongCrafter: Towards Diverse Long-Context Understanding via Evidence-Graph-Guided Instruction Synthesis

Chenhao Yuan, Yinhao Xu, Shuwen Xu +8

Synthesizing long-context supervised fine-tuning (SFT) data is a scalable way to enhance the long-context understanding of large language models (LLMs), yet existing approaches sha…

cs.AI2026

DecoEvo: Score-Decoupled Co-Evolution of Solver and Rubric-Generator Skills in Text Space

Jiangwang Chen, Zixin Song, Junlin Liu +10

Text-space optimization adapts large language models (LLMs) by editing external natural-language artifacts rather than model weights, so the optimized artifacts remain inspectable…

cs.AI2026

From Proprietary to Open-Source: Bridging the Distribution Gap via Multi-Agent Protocol Distillation in Agentic Search

Junlin Liu, Jiangwang Chen, Zixin Song +7

Agentic search enables large language models to solve knowledge-intensive tasks by interleaving multi-step reasoning with retrieval, yet optimizing this with outcome-based reinforc…

cs.CL2026

PReM: Learning What to Preserve and When to Refresh for Context Compression

Bohan Yu, Lei Shen, Chenxi Zhou +5

Efficient long-context inference is not only about reducing memory cost, but also about keeping useful contextual evidence accessible as generation proceeds. However, existing comp…

cs.CL2026

From Signal Degradation to Computation Collapse: Uncovering the Two Failure Modes of LLM Quantization

Chenxi Zhou, Pengfei Cao, Jiang Li +4

Post-Training Quantization (PTQ) is critical for the efficient deployment of Large Language Models (LLMs). While 4-bit quantization is widely regarded as an optimal trade-off, redu…

cs.CL2025

Task-Stratified Knowledge Scaling Laws for Post-Training Quantized Large Language Models

Chenxi Zhou, Pengfei Cao, Jiang Li +4

Post-Training Quantization (PTQ) is a critical strategy for efficient Large Language Models (LLMs) deployment. However, existing scaling laws primarily focus on general performance…