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Hanchao Yu

11 accepted papers

2026

RESTRAIN: From Spurious Votes to Signals — Self-Training RL with Self-Penalization

ICLR 2026poster

Reinforcement learning with human-annotated data has boosted chain-of-thought reasoning in large reasoning models, but these gains come at high costs in labeled data while faltering on harder tasks. A natural next step is experience-driven learning, where models improve without curated labels by ada…

Cited by 0SourceScholar
2026

VTool-R1: VLMs Learn to Think with Images via Reinforcement Learning on Multimodal Tool Use

ICLR 2026poster

Reinforcement learning finetuning (RFT) has significantly advanced the reasoning capabilities of large language models (LLMs) by enabling long chains of thought, multi-turn self-correction, and effective tool use. While recent works attempt to extend RFT to vision-language models (VLMs), these effor…

Cited by 0SourcecodeScholar
2025

CompCap: Improving Multimodal Large Language Models with Composite Captions

ICCV 2025poster

How well can Multimodal Large Language Models (MLLMs) understand composite images? Composite images (CIs) are synthetic visuals created by merging multiple visual elements, such as charts, posters, or screenshots, rather than being captured directly by a camera. While CIs are prevalent in real-world…

2025

Inference Compute-Optimal Video Vision Language Models

ACL 2025long

This work investigates the optimal allocation of inference compute across three key scaling factors in video vision language models: language model size, frame count, and the number of visual tokens per frame. While prior works typically focuses on optimizing model efficiency or improving performanc…

Cited by 0SourcePDFScholar
2024

FedES: Federated Early-Stopping for Hindering Memorizing Heterogeneous Label Noise

IJCAI 2024poster

Federated learning (FL) facilitates collaborative model training across distributed clients while maintaining privacy. Federated noisy label learning (FNLL) is more of a challenge for data inaccessibility and noise heterogeneity. Existing works primarily assume clients are either noisy or clean, whi…

Cited by 1SourcePDFScholar
2024

uCAP: An Unsupervised Prompting Method for Vision-Language Models

ECCV 2024oral

"This paper addresses a significant limitation that prevents Contrastive Language-Image Pretrained Models (CLIP) from achieving optimal performance on downstream image classification tasks. The key problem with CLIP-style zero-shot classification is that it requires domain-specific context in the fo…

Cited by 0SourcePDFScholar
2023

APrompt: Attention Prompt Tuning for Efficient Adaptation of Pre-trained Language Models

EMNLP 2023long main

With the continuous growth of large language models, the process of fine-tuning these models for new tasks has become increasingly parameter-intensive. Prompt tuning, a method that involves tuning a small set of soft prompts, has emerged as an effective and efficient approach for adapting large pre-…

Cited by 0SourceScholar
2023

Generating Hashtags for Short-form Videos with Guided Signals

ACL 2023long

Short-form video hashtag recommendation (SVHR) aims to recommend hashtags to content creators from videos and corresponding descriptions. Most prior studies regard SVHR as a classification or ranking problem and select hashtags from a set of limited candidates. However, in reality, users can create…

2023

RoAST: Robustifying Language Models via Adversarial Perturbation with Selective Training

EMNLP 2023long findings

Fine-tuning pre-trained language models (LMs) has become the de facto standard in many NLP tasks. Nevertheless, fine-tuned LMs are still prone to robustness issues, such as adversarial robustness and model calibration. Several perspectives of robustness for LMs have been studied independently, but l…

Cited by 0SourcecodeScholar
2020

Bridging Cross-Tasks Gap for Cognitive Assessment via Fine-Grained Domain Adaptation

IJCAI 2020poster

Discriminating pathologic cognitive decline from the expected decline of normal aging is an important research topic for elderly care and health monitoring. However, most cognitive assessment methods only work when data distributions of the training set and testing set are consistent. Enabling exist…

Cited by 0SourcePDFScholar
2020

FOAL: Fast Online Adaptive Learning for Cardiac Motion Estimation

CVPR 2020poster

Motion estimation of cardiac MRI videos is crucial for the evaluation of human heart anatomy and function. Recent researches show promising results with deep learning-based methods. In clinical deployment, however, they suffer dramatic performance drops due to mismatched distributions between traini…

Cited by 64PDFScholar