← Search

Haochen Han

6 accepted papers

2026

OR-PRM: A Process Reward Model for Algorithmic Problem in Operations Research

ICLR 2026poster

Large language models (LLMs) with Process Reward Models (PRMs) have shown strong reasoning ability, yet their potential in Operations Research (OR) remains unexplored. We present the first PRM tailored for OR, but find that directly training on mainstream datasets yields surprisingly weak performanc…

Cited by 0SourceScholar
2026

When the Prompt Becomes Visual: Vision-Centric Jailbreak Attacks for Large Image Editing Models

ICML 2026oral

Recent advances in large image editing models have shifted the paradigm from text-driven instructions to vision-prompt editing, where user intent is inferred directly from visual inputs such as marks, arrows, and visual–text prompts. While this paradigm greatly expands usability, it also introduces …

Cited by 0SourceScholar
2025

RECALL: REpresentation-aligned Catastrophic-forgetting ALLeviation via Hierarchical Model Merging

EMNLP 2025

We unveil that internal representations in large language models (LLMs) serve as reliable proxies of learned knowledge, and propose **RECALL**, a novel representation-aware model merging framework for continual learning without access to historical data. RECALL computes inter-model similarity from l

2025

Unlearning the Noisy Correspondence Makes CLIP More Robust

ICCV 2025poster

The data appetite for Vision-Language Models (VLMs) has continuously scaled up from the early millions to billions today, which faces an untenable trade-off with data quality and inevitably introduces Noisy Correspondence (NC) samples. Undoubtedly, such semantically unrelated data significantly impa…

2024

Learning to Rematch Mismatched Pairs for Robust Cross-Modal Retrieval

CVPR 2024poster

Collecting well-matched multimedia datasets is crucial for training cross-modal retrieval models. However in real-world scenarios massive multimodal data are harvested from the Internet which inevitably contains Partially Mismatched Pairs (PMPs). Undoubtedly such semantical irrelevant data will rema…

2023

Noisy Correspondence Learning With Meta Similarity Correction

CVPR 2023poster

Despite the success of multimodal learning in cross-modal retrieval task, the remarkable progress relies on the correct correspondence among multimedia data. However, collecting such ideal data is expensive and time-consuming. In practice, most widely used datasets are harvested from the Internet an…