activity
20242026
most citedStacking Your Transformers: A Closer Look at Model Growth for Efficient LLM Pre-Training

2 citations · 3 across the 11 of their papers we have counts for

collaborators

13 papers

cs.CL2026

Low-Bit N-Gram Embeddings for Language Models

Stephen Chung, Wenyu Du

Many recent open-weight language models use n-gram embedding tables to improve performance. These tables store learned representations of short token sequences, such as pairs or tr…

cs.AI2026

Autonomous Mathematical Discovery in an Open-World Multi-Agent Environment

Stephen Chung, Wenyu Du, William J. Wesley

We study autonomous mathematical discovery in the Station, an open-world multi-agent environment in which AI agents from different model families pursue a shared research goal with…

cs.CL2026

GameCraft-Bench: Can Agents Build Playable Games End-to-End in a Real Game Engine?

Tongxu Luo, Rongsheng Wang, Jiaxi Bi +22

Game generation is an emerging application of coding agents, requiring models to transform natural-language specifications into playable interactive systems. Unlike traditional cod…

cs.CL2026

Cut Your Losses! Learning to Prune Paths Early for Efficient Parallel Reasoning

Jiaxi Bi, Tongxu Luo, Wenyu Du +2

Parallel reasoning enhances Large Reasoning Models (LRMs) but incurs prohibitive costs due to futile paths caused by early errors. To mitigate this, path pruning at the prefix leve…

cs.AI2025

The Station: An Open-World Environment for AI-Driven Discovery

Stephen Chung, Wenyu Du

We introduce the STATION, an open-world multi-agent environment for autonomous scientific discovery. The Station simulates a complete scientific ecosystem, where agents can engage…

cs.CL2025

Learning from Peers in Reasoning Models

Tongxu Luo, Wenyu Du, Jiaxi Bi +5

Large Reasoning Models (LRMs) have the ability to self-correct even when they make mistakes in their reasoning paths. However, our study reveals that when the reasoning process sta…

cs.CL2025

Thinker: Learning to Think Fast and Slow

Stephen Chung, Wenyu Du, Jie Fu

Recent studies show that the reasoning capabilities of Large Language Models (LLMs) can be improved by applying Reinforcement Learning (RL) to question-answering (QA) tasks in area…

cs.CL2025

Learning from Failures in Multi-Attempt Reinforcement Learning

Stephen Chung, Wenyu Du, Jie Fu

Recent advancements in reinforcement learning (RL) for large language models (LLMs), exemplified by DeepSeek R1, have shown that even a simple question-answering task can substanti…

cs.CL2025

Finite State Automata Inside Transformers with Chain-of-Thought: A Mechanistic Study on State Tracking

Yifan Zhang, Wenyu Du, Dongming Jin +2

Chain-of-thought (CoT) significantly enhances the performance of large language models (LLMs) across a wide range of tasks, and prior research shows that CoT can theoretically incr…

cs.CL2025

Towards Understanding Fine-Tuning Mechanisms of LLMs via Circuit Analysis

Xu Wang, Yan Hu, Wenyu Du +3

Fine-tuning significantly improves the performance of Large Language Models (LLMs), yet its underlying mechanisms remain poorly understood. This paper aims to provide an in-depth i…

cs.LG2024

Unlocking Continual Learning Abilities in Language Models

Wenyu Du, Shuang Cheng, Tongxu Luo +5

Language models (LMs) exhibit impressive performance and generalization capabilities. However, LMs struggle with the persistent challenge of catastrophic forgetting, which undermin…

cs.CL2024★ 2 cited

Stacking Your Transformers: A Closer Look at Model Growth for Efficient LLM Pre-Training

Wenyu Du, Tongxu Luo, Zihan Qiu +5

LLMs are computationally expensive to pre-train due to their large scale. Model growth emerges as a promising approach by leveraging smaller models to accelerate the training of la…

cs.LG2024★ 1 cited

m2mKD: Module-to-Module Knowledge Distillation for Modular Transformers

Ka Man Lo, Yiming Liang, Wenyu Du +5

Modular neural architectures are gaining attention for their powerful generalization and efficient adaptation to new domains. However, training these models poses challenges due to…