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Meilong Xu

3 accepted papers

2026

Towards Better Optimization For Listwise Preference in Diffusion Models

ICLR 2026poster

Reinforcement learning from human feedback (RLHF) has proven effectiveness for aligning text-to-image (T2I) diffusion models with human preferences. Although Direct Preference Optimization (DPO) is widely adopted for its computational efficiency and avoidance of explicit reward modeling, its applica…

Cited by 0SourceScholar
2025

MATCH: Multi-faceted Adaptive Topo-Consistency for Semi-Supervised Histopathology Segmentation

NeurIPS 2025poster

In semi-supervised segmentation, capturing meaningful semantic structures from unlabeled data is essential. This is particularly challenging in histopathology image analysis, where objects are densely distributed. To address this issue, we propose a semi-supervised segmentation framework designed to…

Cited by 0SourcecodeScholar
2025

TopoCellGen: Generating Histopathology Cell Topology with a Diffusion Model

CVPR 2025poster

Accurately modeling multi-class cell topology is crucial in digital pathology, as it provides critical insights into tissue structure and pathology. The synthetic generation of cell topology enables realistic simulations of complex tissue environments, enhances downstream tasks by augmenting trainin…