Détail du document
Identifiant
oai:arXiv.org:2403.12719
Sujet
Computer Science - Machine Learnin...Auteur
Aviles-Rivero, Angelica I. Cheng, Chun-Wun Deng, Zhongying Kourtzi, Zoe Schönlieb, Carola-BibianeCatégorie
Computer Science
Année
2024
Date de référencement
27/03/2024
Mots clés
introduce multi-modal alzheimer hypergraphRésumé
Early detection of Alzheimer's disease's precursor stages is imperative for significantly enhancing patient outcomes and quality of life.
This challenge is tackled through a semi-supervised multi-modal diagnosis framework.
In particular, we introduce a new hypergraph framework that enables higher-order relations between multi-modal data, while utilising minimal labels.
We first introduce a bilevel hypergraph optimisation framework that jointly learns a graph augmentation policy and a semi-supervised classifier.
This dual learning strategy is hypothesised to enhance the robustness and generalisation capabilities of the model by fostering new pathways for information propagation.
Secondly, we introduce a novel strategy for generating pseudo-labels more effectively via a gradient-driven flow.
Our experimental results demonstrate the superior performance of our framework over current techniques in diagnosing Alzheimer's disease.
Aviles-Rivero, Angelica I.,Cheng, Chun-Wun,Deng, Zhongying,Kourtzi, Zoe,Schönlieb, Carola-Bibiane, 2024, Bilevel Hypergraph Networks for Multi-Modal Alzheimer's Diagnosis
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