collaborators

6 papers

cs.RO2026

Externalise the Memory: A Pre-Registered Study of Where an Embodied Agent's Experience Should Live

Cheng-Yin Tu

Should an embodied agent's experience be baked into its policy weights, or kept external and retrieved at inference? A memory-augmented teacher (a VLM that retrieves lessons, with…

cs.LG2026

UltraData-Code: From Raw Repositories to Algorithmically Dense and Task-Oriented Code Data

Chengying Tu, Hengyu Zhao, Shuaikang Xue +13

Code generation has become a core capability of large language models (LLMs), and code data is central to the pre-training process that develops it. As obtaining public code of suf…

cs.CL2025

A Survey on LLM Mid-Training

Chengying Tu, Xuemiao Zhang, Rongxiang Weng +6

Recent advances in foundation models have highlighted the significant benefits of multi-stage training, with a particular emphasis on the emergence of mid-training as a vital stage…

cs.AI2025

Expanding Reasoning Potential in Foundation Model by Learning Diverse Chains of Thought Patterns

Xuemiao Zhang, Can Ren, Chengying Tu +5

Recent progress in large reasoning models for challenging mathematical reasoning has been driven by reinforcement learning (RL). Incorporating long chain-of-thought (CoT) data duri…

cs.CL2025

LinkQA: Synthesizing Diverse QA from Multiple Seeds Strongly Linked by Knowledge Points

Xuemiao Zhang, Can Ren, Chengying Tu +4

The advancement of large language models (LLMs) struggles with the scarcity of high-quality, diverse training data. To address this limitation, we propose LinkSyn, a novel knowledg…

cs.CL2025

Large-Scale Diverse Synthesis for Mid-Training

Xuemiao Zhang, Chengying Tu, Can Ren +4

The scarcity of high-quality, knowledge-intensive training data hinders the development of large language models (LLMs), as traditional corpora provide limited information. Previou…