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LIMEI HAN

6 accepted papers

2026

Beyond Instance-Level Self-Supervision in 3D Multi-Modal Medical Imaging

ICML 2026poster

Self-supervised pre-training methods in medical imaging typically treat each individual as an isolated instance, learning representations through augmentation-based objectives or masked reconstruction. They often do not adequately capitalize on a key characteristic of physiological features: anatomi…

Cited by 0SourceScholar
2026

Disco: Densely-overlapping Cell Instance Segmentation via Adjacency-aware Collaborative Coloring

ICLR 2026poster

Accurate cell instance segmentation is foundational for digital pathology analysis. Existing methods based on contour detection and distance mapping still face significant challenges in processing complex and dense cellular regions. Graph coloring-based methods provide a new paradigm for this task,…

Cited by 0SourcecodeScholar
2026

PET2Rep: Towards Vision-Language Model-Drived Automated Radiology Report Generation for Positron Emission Tomography

AAAI 2026technical

Positron emission tomography (PET) is a cornerstone of modern oncologic and neurologic imaging, distinguished by its unique ability to illuminate dynamic metabolic processes that transcend the anatomical focus of traditional imaging technologies. Radiology reports are essential for clinical decision

Cited by 0SourcePDFScholar
2026

Tracing the Heart’s Pathways: ECG Representation Learning from a Cardiac Conduction Perspective

AAAI 2026technical

The multi-lead electrocardiogram (ECG) stands as a cornerstone of cardiac diagnosis. Recent strides in electrocardiogram self-supervised learning (eSSL) have brightened prospects for enhancing representation learning without relying on high-quality annotations. Yet earlier eSSL methods suffer a key

Cited by 0SourcePDFScholar
2025

ChromFound: Towards A Universal Foundation Model for Single-Cell Chromatin Accessibiltiy Data

NeurIPS 2025poster

The advent of single-cell Assay for Transposase-Accessible Chromatin using sequencing (scATAC-seq) offers an innovative perspective for deciphering regulatory mechanisms by assembling a vast repository of single-cell chromatin accessibility data. While foundation models have achieved significant suc…

Cited by 0SourcecodeScholar
2025

Minimal Semantic Sufficiency Meets Unsupervised Domain Generalization

NeurIPS 2025poster

The generalization ability of deep learning has been extensively studied in supervised settings, yet it remains less explored in unsupervised scenarios. Recently, the Unsupervised Domain Generalization (UDG) task has been proposed to enhance the generalization of models trained with prevalent unsupe…

Cited by 0SourceScholar