collaborators

5 papers

cs.LG2026

DECO: Sparse Mixture-of-Experts with Dense-Comparable Performance on End-Side Devices

Chenyang Song, Weilin Zhao, Xu Han +3

While Mixture-of-Experts (MoE) scales model capacity without proportionally increasing computation, its massive total parameter footprint creates significant storage and memory-acc…

cs.CL2025

Cost-Optimal Grouped-Query Attention for Long-Context Modeling

Yingfa Chen, Yutong Wu, Chenyang Song +5

Grouped-Query Attention (GQA) is a widely adopted strategy for reducing the computational cost of attention layers in large language models (LLMs). However, current GQA configurati…

cs.LG2025

BlockFFN: Towards End-Side Acceleration-Friendly Mixture-of-Experts with Chunk-Level Activation Sparsity

Chenyang Song, Weilin Zhao, Xu Han +5

To alleviate the computational burden of large language models (LLMs), architectures with activation sparsity, represented by mixture-of-experts (MoE), have attracted increasing at…

cs.LG2025

Sparsing Law: Towards Large Language Models with Greater Activation Sparsity

Yuqi Luo, Chenyang Song, Xu Han +7

Activation sparsity denotes the existence of substantial weakly-contributed elements within activation outputs that can be eliminated, benefiting many important applications concer…

cs.LG2025

ProSparse: Introducing and Enhancing Intrinsic Activation Sparsity within Large Language Models

Chenyang Song, Xu Han, Zhengyan Zhang +8

Activation sparsity refers to the existence of considerable weakly-contributed elements among activation outputs. As a prevalent property of the models using the ReLU activation fu…