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Optimizing OOD Detection in Molecular Graphs: A Novel Approach with Diffusion Models
April 25, 2024, 7:42 p.m. | Xu Shen, Yili Wang, Kaixiong Zhou, Shirui Pan, Xin Wang
cs.LG updates on arXiv.org arxiv.org
Abstract: The open-world test dataset is often mixed with out-of-distribution (OOD) samples, where the deployed models will struggle to make accurate predictions. Traditional detection methods need to trade off OOD detection and in-distribution (ID) classification performance since they share the same representation learning model. In this work, we propose to detect OOD molecules by adopting an auxiliary diffusion model-based framework, which compares similarities between input molecules and reconstructed graphs. Due to the generative bias towards reconstructing …
abstract arxiv classification cs.lg dataset detection detection methods diffusion diffusion models distribution graphs mixed novel open-world performance predictions representation representation learning samples struggle test trade type will world
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