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Tian-Yu Xiang

2 accepted papers

2026

VasoMIM: Vascular Anatomy-Aware Masked Image Modeling for Vessel Segmentation

AAAI 2026technical

Accurate vessel segmentation in X-ray angiograms is crucial for numerous clinical applications. However, the scarcity of annotated data presents a significant challenge, which has driven the adoption of self-supervised learning (SSL) methods such as masked image modeling (MIM) to leverage large-scal

Cited by 0SourcePDFScholar
2024

MICRO: Model-Based Offline Reinforcement Learning with a Conservative Bellman Operator

IJCAI 2024poster

Offline reinforcement learning (RL) faces a significant challenge of distribution shift. Model-free offline RL penalizes the Q value for out-of-distribution (OOD) data or constrains the policy closed to the behavior policy to tackle this problem, but this inhibits the exploration of the OOD region.…