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Yingfa Chen

7 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

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…

2024

Beyond the Turn-Based Game: Enabling Real-Time Conversations with Duplex Models

EMNLP 2024main

As large language models (LLMs) increasingly permeate daily lives, there is a growing demand for real-time interactions that mirror human conversations. Traditional turn-based chat systems driven by LLMs prevent users from verbally interacting with the system while generating responses.To overcome t…

2024

Robust and Scalable Model Editing for Large Language Models

COLING 2024main

Large language models (LLMs) can make predictions using *parametric knowledge* – knowledge encoded in the model weights – or *contextual knowledge* – knowledge presented in the context. In many scenarios, a desirable behavior is that LLMs give precedence to contextual knowledge when it conflicts wit…

2024

∞Bench: Extending Long Context Evaluation Beyond 100K Tokens

ACL 2024long

Processing and reasoning over long contexts is crucial for many practical applications of Large Language Models (LLMs), such as document comprehension and agent construction. Despite recent strides in making LLMs process contexts with more than 100K tokens, there is currently a lack of a standardize…

2023

READIN: A Chinese Multi-Task Benchmark with Realistic and Diverse Input Noises

ACL 2023long

For many real-world applications, the user-generated inputs usually contain various noises due to speech recognition errors caused by linguistic variations or typographical errors (typos). Thus, it is crucial to test model performance on data with realistic input noises to ensure robustness and fair…