collaborators

7 papers

cs.RO2026

SIEVE: Structure-Aware Data Selection for Imitation Learning with VLA Models

Changti Wu, Bin Yu, Zhaolong Shen +6

Vision-Language-Action (VLA) models are typically trained by imitation learning on large-scale robot demonstration datasets, but more data does not necessarily yield better policie…

cs.CV2026

Text-Vision Co-Instructed Image Editing

Chenxi Xie, Yuhui Wu, Qiaosi Yi +1

Existing image editing methods can be generally categorized into textual instruction-based and visual prompt-based ones. Textual instructions are semantically expressive, but are l…

cs.CL2026

Relax: An Asynchronous Reinforcement Learning Engine for Omni-Modal Post-Training at Scale

Liujie Zhang, Benzhe Ning, Rui Yang +8

Reinforcement learning (RL) post-training has proven effective at unlocking reasoning, self-reflection, and tool-use capabilities in large language models. As models extend to omni…

cs.CV2026

Omni-3DEdit: Generalized Versatile 3D Editing in One-Pass

Chen Liyi, Wang Pengfei, Zhang Guowen +2

Most instruction-driven 3D editing methods rely on 2D models to guide the explicit and iterative optimization of 3D representations. This paradigm, however, suffers from two primar…

cs.CV2026

ScalSelect: Scalable Training-Free Multimodal Data Selection for Efficient Visual Instruction Tuning

Changti Wu, Jiahuai Mao, Yuzhuo Miao +6

Large-scale Visual Instruction Tuning (VIT) has become a key paradigm for advancing the performance of vision-language models (VLMs) across various multimodal tasks. However, train…

cs.CV2025

Euclid's Gift: Enhancing Spatial Perception and Reasoning in Vision-Language Models via Geometric Surrogate Tasks

Shijie Lian, Changti Wu, Laurence Tianruo Yang +4

Spatial intelligence spans a rich suite of abilities, including visualising and transforming shapes, mentally rotating objects, judging relational positions and containment, and es…