activity
20242026
collaborators

14 papers

cs.LG2026

Draft in Parallel, Condition Through Depth: Adjacent Causal Injection for Speculative Decoding

Haohui Zhang, Keyu Chen, Haocheng Sun +4

Parallel speculative drafting generates multiple candidates in one backbone pass, but independent token selection can produce inconsistent continuations that shorten the accepted p…

cs.LG2026

RSPO: Reward-Swap Policy Optimization for Multi-Turn LLM Agents

Qiang Liu, Taian Guo, Ruizhi Qiao +1

Reinforcement learning holds significant potential for training large language models (LLMs) to handle multi-turn interactive tasks. However, in long-horizon, multi-turn tasks char…

cs.LG2026

Training-Free Hashing-Based Attention via Binary Principal Components

Daohai Yu, Zhanpeng Zeng, Keyu Chen +6

Long-context large language models (LLMs) are increasingly deployed in real-world applications, yet self-attention remains a major efficiency bottleneck -- especially during decodi…

cs.IR2026

Breaking the Evaluation Paradox: Evaluating High-Entropy Search with Computationally Irreducible Constraints

Juntao Wu, Wei Wen, Xianting Huang +4

Evaluating the exhaustive search capabilities of large language models (LLMs) is plagued by a fundamental paradox: verifying completeness requires complete ground truth, yet high-e…

cs.CV2026

Beyond Encoder Accumulation: Measuring Encoder Roles in Multi-Encoder VLMs

Wei Ding, Yudong Zhang, Ruobing Xie +3

As foundation models scale toward fusing more heterogeneous visual streams, understanding how diverse encoders interact under joint training becomes a prerequisite for principled d…

cs.IR2026

Skill Is Not Document: Query-Conditioned Compatibility for LLM Agent Skill Routing

Zifei Wang, Wei Wen, Qiang Ji +3

Large language model agents increasingly rely on reusable skills, making skill retrieval a critical front-end component of agent systems. Skill retrieval, however, is not ordinary…

cs.CV2026

Moment-Video: Diagnosing Temporal Fidelity of Video MLLMs on Momentary Visual Events

Xiaolin Liu, Yilun Zhu, Xiangyu Zhao +9

Video multimodal large language models (MLLMs) have made rapid progress in general and long-form video understanding, yet their ability to capture and use brief, answer-critical vi…

cs.CV2026

DenseMLLM: Standard Multimodal LLMs for Dense Prediction

Yi Li, Hongze Shen, Lexiang Tang +6

Multimodal Large Language Models (MLLMs) have demonstrated exceptional capabilities in high-level visual understanding. However, extending these models to fine-grained dense predic…

cs.AI2026

When should I search more: Adaptive Complex Query Optimization with Reinforcement Learning

Wei Wen, Sihang Deng, Tianjun Wei +3

Query optimization is a crucial component for the efficacy of Retrieval-Augmented Generation (RAG) systems. While reinforcement learning (RL)-based agentic and reasoning methods ha…

cs.AI2025

Adaptive Dual Reasoner: Large Reasoning Models Can Think Efficiently by Hybrid Reasoning

Yujian Zhang, Keyu Chen, Zhifeng Shen +2

Although Long Reasoning Models (LRMs) have achieved superior performance on various reasoning scenarios, they often suffer from increased computational costs and inference latency…

cs.CL2025

HiChunk: Evaluating and Enhancing Retrieval-Augmented Generation with Hierarchical Chunking

Wensheng Lu, Keyu Chen, Ruizhi Qiao +1

Retrieval-Augmented Generation (RAG) enhances the response capabilities of language models by integrating external knowledge sources. However, document chunking as an important par…

cs.CL2025

ASPD: Unlocking Adaptive Serial-Parallel Decoding by Exploring Intrinsic Parallelism in LLMs

Keyu Chen, Zhifeng Shen, Daohai Yu +5

The increasing scale and complexity of large language models (LLMs) pose significant inference latency challenges, primarily due to their autoregressive decoding paradigm character…

cs.CL2025

RocketEval: Efficient Automated LLM Evaluation via Grading Checklist

Tianjun Wei, Wei Wen, Ruizhi Qiao +2

Evaluating large language models (LLMs) in diverse and challenging scenarios is essential to align them with human preferences. To mitigate the prohibitive costs associated with hu…

cs.CV2024

Multimodal Label Relevance Ranking via Reinforcement Learning

Taian Guo, Taolin Zhang, Haoqian Wu +3

Conventional multi-label recognition methods often focus on label confidence, frequently overlooking the pivotal role of partial order relations consistent with human preference. T…