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Chenyang Song

4 accepted papers

2025

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

EMNLP 2025

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 configurations are often suboptimal because they overlook how context length influences inference cost. Since inference cost grows

2025

Multi-Modal Multi-Granularity Tokenizer for Chu Bamboo Slips

COLING 2025main

This study presents a multi-modal multi-granularity tokenizer specifically designed for analyzing ancient Chinese scripts, focusing on the Chu bamboo slip (CBS) script used during the Spring and Autumn and Warring States period (771-256 BCE) in Ancient China. Considering the complex hierarchical str…

2025

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

COLING 2025main

Activation sparsity refers to the existence of considerable weakly-contributed elements among activation outputs, serving as a promising paradigm for accelerating model inference. Nevertheless, most large language models (LLMs) adopt activation functions without intrinsic activation sparsity (e.g.,…

2025

Sparsing Law: Towards Large Language Models with Greater Activation Sparsity

ICML 2025poster

Activation sparsity denotes the existence of substantial weakly-contributed neurons within feed-forward networks of large language models (LLMs), providing wide potential benefits such as computation acceleration. However, existing works lack thorough quantitative studies on this useful property, in…