collaborators

13 papers

cs.CV2026

CoVisco: Codec-Native Vision Encoder with Native Token Compression for Unified Image-Video Understanding

Yulong Liu, Xiaotian Han, Junyuan Shang +6

Vision-language models face a fundamental scaling bottleneck: the number of visual tokens grows with both temporal duration and spatial resolution, making long-video understanding…

cs.LG2026

OMP-MoE: Efficient Expert Pruning for Mixture-of-Experts LLMs via Orthogonal Matching Pursuit

Dezhi Li, Lujun Li, Qiyuan Zhu +4

Mixture-of-Experts (MoE) models enable efficient scaling of large language models but face critical deployment challenges due to massive memory requirements. Existing pruning metho…

cs.AI2026

Fewer Tokens, Smaller Cache: Reward-Coordinated Efficient Reasoning

Qiyuan Zhu, Dezhi Li, Pengyu Cheng +8

Large Reasoning Models (LRMs) excel on complex tasks through long chain-of-thought (CoT) reasoning, but their lengthy intermediate steps cause severe overthinking that inflates inf…

cs.CL2026

Hierarchical Sparse Attention Done Right: Toward Infinite Context Modeling

Xiang Hu, Xinyu Wei, Hao Gu +10

Scaling modern large language models (LLMs) to long contexts is limited by the quadratic computation cost, and poor length extrapolation of dense attention. Chunk-wise sparse atten…

cs.CL2026

Self-Evolving Deep Research via Joint Generation and Evaluation

Han Zhu, Chengkun Cai, Yuanfeng Song +3

Large Language Models (LLMs) have become increasingly adopted in daily applications, with deep research standing out as a particularly important capability. Unlike traditional ques…

cs.LG2026

RW-TTT: Batched Serving for Request-Owned Test-Time Training State

Jian Yang, Zhizhuo Kou, Yao Tian +4

Test-time training (TTT) adapts an LLM during generation by reading and updating request-owned state, such as fast weights, low-rank deltas, or streaming learner state. This breaks…

cs.CL2026

IndexMem: Learned KV-Cache Eviction with Latent Memory for Long-Context LLM Inference

Xintong Yang, Hao Gu, Binxing Xu +6

Large Language Models (LLMs) are increasingly expected to operate over long contexts, yet standard softmax attention incurs a KV cache that grows linearly with sequence length, qui…

cs.CV2026

When Text Hijacks Vision: Benchmarking and Mitigating Text Overlay-Induced Hallucination in Vision Language Models

Cui Yakun, Xingqun Qi, TianTian Geng +3

Recent advances in Vision-Language Models (VLMs) have substantially enhanced their ability across multimodal video understanding benchmarks spanning temporal, action, object, and s…

cs.LG2026

Bit-by-Bit: Progressive QAT Strategy with Outlier Channel Splitting for Stable Low-Bit LLMs

Binxing Xu, Hao Gu, Lujun Li +8

Training LLMs at ultra-low precision remains a formidable challenge. Direct low-bit QAT often suffers from convergence instability and substantial training costs, exacerbated by qu…

cs.LG2026

QaRL: Rollout-Aligned Quantization-Aware RL for Fast and Stable Training under Training--Inference Mismatch

Hao Gu, Hao Wang, Jiacheng Liu +9

Large language model (LLM) reinforcement learning (RL) pipelines are often bottlenecked by rollout generation, making end-to-end training slow. Recent work mitigates this by runnin…

cs.LG2025

Sub-MoE: Efficient Mixture-of-Expert LLMs Compression via Subspace Expert Merging

Lujun Li, Zhu Qiyuan, Jiacheng Wang +4

Mixture of Experts (MoE) LLMs face significant obstacles due to their massive parameter scale, which imposes memory, storage, and deployment challenges. Although recent expert merg…

cs.LG2025

BTC-LLM: Efficient Sub-1-Bit LLM Quantization via Learnable Transformation and Binary Codebook

Hao Gu, Lujun Li, Hao Wang +7

Binary quantization represents the most extreme form of compression, reducing weights to +/-1 for maximal memory and computational efficiency. While recent sparsity-aware binarizat…

cs.CV2025

Follow-Your-Motion: Video Motion Transfer via Efficient Spatial-Temporal Decoupled Finetuning

Yue Ma, Yulong Liu, Qiyuan Zhu +8

Recently, breakthroughs in the video diffusion transformer have shown remarkable capabilities in diverse motion generations. As for the motion-transfer task, current methods mainly…