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cs.CL2026

DataFoundry: Evolving Data Preparators via Recursive Self-Improvement

Cehao Yang, Xiaojun Wu, Xueyuan Lin +4

Domain adaptation of large language models increasingly depends on constructing high-quality training data, yet existing data-preparation pipelines typically address quality only a…

cs.CL2026

Envs-FORGE: Frontier-Optimized Reward-Grounded Environment Synthesis for Agent RL

Xiaojun Wu, Cehao Yang, Honghao Liu +7

Reinforcement learning (RL) for terminal agents needs executable training environments with reliable rewards and useful difficulty. Fixed recipes such as few-shot, Self-Instruct, a…

cs.CL2026

LazyTrain: Limited-resource Allocation toward Zero-waste Yield Optimization in Large Language Model Training

Xiaojun Wu, Cehao Yang, Honghao Liu +5

Training large language models on limited hardware is increasingly a scheduling problem across GPU compute, host memory, PCIe transfer, and storage bandwidth. Existing offloading s…

cs.CL2026

Bayesian-Agent: Posterior-Guided Skill Evolution Across LLM Agent Harnesses

Xiaojun Wu, Cehao Yang, Honghao Liu +7

LLM agents increasingly rely on prompts, tools, memory, SOPs, skills, and harness feedback, yet current self-evolution pipelines often update these assets through heuristic reflect…

cs.CL2025

Prompt-R1: Collaborative Automatic Prompting Framework via End-to-end Reinforcement Learning

Wenjin Liu, Haoran Luo, Xueyuan Lin +5

Recently, advanced large language models (LLMs) have emerged at an increasingly rapid pace. However, when faced with complex problems, most users are often unable to provide accura…

cs.CL2025

RETuning: Upgrading Inference-Time Scaling for Stock Movement Prediction with Large Language Models

Xueyuan Lin, Cehao Yang, Ye Ma +7

Recently, large language models (LLMs) have demonstrated outstanding reasoning capabilities on mathematical and coding tasks. However, their application to financial tasks-especial…

cs.CL2025

GraphSearch: An Agentic Deep Searching Workflow for Graph Retrieval-Augmented Generation

Cehao Yang, Xiaojun Wu, Xueyuan Lin +6

Graph Retrieval-Augmented Generation (GraphRAG) enhances factual reasoning in LLMs by structurally modeling knowledge through graph-based representations. However, existing GraphRA…

cs.CL2025

Think-on-Graph 3.0: Efficient and Adaptive LLM Reasoning on Heterogeneous Graphs via Multi-Agent Dual-Evolving Context Retrieval

Xiaojun Wu, Cehao Yang, Xueyuan Lin +6

Graph-based Retrieval-Augmented Generation (GraphRAG) has become the important paradigm for enhancing Large Language Models (LLMs) with external knowledge. However, existing approa…

cs.CL2025

Select2Reason: Efficient Instruction-Tuning Data Selection for Long-CoT Reasoning

Cehao Yang, Xueyuan Lin, Xiaojun Wu +5

A practical approach to activate long chain-of-thoughts reasoning ability in pre-trained large language models is to perform supervised fine-tuning on instruction datasets synthesi…

cs.CL2025

LongFaith: Enhancing Long-Context Reasoning in LLMs with Faithful Synthetic Data

Cehao Yang, Xueyuan Lin, Chengjin Xu +5

Despite the growing development of long-context large language models (LLMs), data-centric approaches relying on synthetic data have been hindered by issues related to faithfulness…