collaborators

9 papers

cs.LG2026

Spectral Guidance for Flexible and Efficient Control of Diffusion Models

Gabriel Moreira, Manuel Marques, João Paulo Costeira +1

We introduce Spectral Guidance, a framework for controlling diffusion models by leveraging the intrinsic geometry of the generative process. As data is progressively corrupted by n…

cs.CL2026

Generating Pretraining Tokens from Organic Data for Data-Bound Scaling

Zichun Yu, Chenyan Xiong

LLM pretraining is shifting from a compute-bound to a data-bound regime, where available human (organic) text falls far short of scaling demands. However, reaching the data-bound r…

cs.CL2026

Efficient Multi-Agent System Training with Data Influence-Oriented Tree Search

Wentao Shi, Zichun Yu, Fuli Feng +2

Monte Carlo Tree Search (MCTS) based methods provide promising approaches for generating synthetic data to enhance the self-training of Large Language Model (LLM) based multi-agent…

cs.CL2026

SkillLearnBench: Benchmarking Continual Learning Methods for Agent Skill Generation on Real-World Tasks

Shanshan Zhong, Yi Lu, Jingjie Ning +7

Skills have become the de facto way to enable LLM agents to perform complex real-world tasks with customized instructions, workflows, and tools, but how to learn them automatically…

cs.CV2026

EmbodiedMidtrain: Bridging the Gap between Vision-Language Models and Vision-Language-Action Models via Mid-training

Yiyang Du, Zhanqiu Guo, Xin Ye +2

Vision-Language-Action Models (VLAs) inherit their visual and linguistic capabilities from Vision-Language Models (VLMs), yet most VLAs are built from off-the-shelf VLMs that are n…

cs.CL2026

Midtraining Bridges Pretraining and Posttraining Distributions

Emmy Liu, Graham Neubig, Chenyan Xiong

Midtraining, the practice of mixing specialized data with more general pretraining data in an intermediate training phase, has become widespread in language model development, yet…