Document detail
ID

oai:arXiv.org:2403.12719

Topic
Computer Science - Machine Learnin...
Author
Aviles-Rivero, Angelica I. Cheng, Chun-Wun Deng, Zhongying Kourtzi, Zoe Schönlieb, Carola-Bibiane
Category

Computer Science

Year

2024

listing date

3/27/2024

Keywords
introduce multi-modal alzheimer hypergraph
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Abstract

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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