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Fangqi Zhu

7 accepted papers

2026

HALO: A Unified Vision-Language-Action Model for Embodied Multimodal Chain-of-Thought Reasoning

ICML 2026poster

Vision–Language–Action (VLA) models have shown strong performance in robotic manipulation, but often struggle in long-horizon or out-of-distribution scenarios due to the lack of explicit mechanisms for multimodal reasoning and anticipating how the world will evolve under action. Recent works introdu…

Cited by 0SourceScholar
2026

WMPO: World Model-based Policy Optimization for Vision-Language-Action Models

ICLR 2026poster

Vision-Language-Action (VLA) models have shown strong potential for general-purpose robotic manipulation, but their reliance on expert demonstrations limits their ability to learn from failures and perform self-corrections. Reinforcement learning (RL) addresses these through self-improving interact…

Cited by 0SourcecodeScholar
2025

IRASim: A Fine-Grained World Model for Robot Manipulation

ICCV 2025poster

World models allow autonomous agents to plan and explore by predicting the visual outcomes of different actions. However, for robot manipulation, it is challenging to accurately model the fine-grained robot-object interaction within the visual space using existing methods which overlook precise alig…

2025

Mesh-RFT: Enhancing Mesh Generation via Fine-grained Reinforcement Fine-Tuning

NeurIPS 2025spotlight

Existing pretrained models for 3D mesh generation often suffer from data biases and produce low-quality results, while global reinforcement learning (RL) methods rely on object-level rewards that struggle to capture local structure details. To address these challenges, we present $\textbf{Mesh-RFT}$…

Cited by 0SourceScholar
2023

A Diffusion Model for Event Skeleton Generation

ACL 2023findings

Event skeleton generation, aiming to induce an event schema skeleton graph with abstracted event nodes and their temporal relations from a set of event instance graphs, is a critical step in the temporal complex event schema induction task. Existing methods effectively address this task from a graph…

2023

A Generative Approach for Script Event Prediction via Contrastive Fine-Tuning

AAAI 2023technical

Script event prediction aims to predict the subsequent event given the context. This requires the capability to infer the correlations between events. Recent works have attempted to improve event correlation reasoning by using pretrained language models and incorporating external knowledge (e.g., di…

2023

Learning to Describe for Predicting Zero-shot Drug-Drug Interactions

EMNLP 2023long main

Adverse drug-drug interactions (DDIs) can compromise the effectiveness of concurrent drug administration, posing a significant challenge in healthcare. As the development of new drugs continues, the potential for unknown adverse effects resulting from DDIs becomes a growing concern. Traditional…

Cited by 0SourcecodeScholar