31 May 2022 to 1 June 2022
Axica
Europe/Berlin timezone

Improving Explainability of Disentangled Representations using Multipath-Attribution Mappings

Not scheduled
1h 30m
Axica

Axica

Pariser Platz 3, 10117 Berlin

Speaker

Mr Lukas Klein (DKFZ, Helmholtz Imaging )

Description

Explainable AI aims to render model behavior understandable by humans, which can be seen as an intermediate step in extracting causal relations from correlative patterns. Due to the high risk of possible fatal decisions in image-based clinical diagnostics, it is necessary to integrate explainable AI into these safety-critical systems. Current explanatory methods typically assign attribution scores to pixel regions in the input image, indicating their importance for a model's decision. However, they fall short when explaining why a visual feature is used. We propose a framework that utilizes interpretable disentangled representations for downstream-task prediction. Through visualizing the disentangled representations, we enable experts to investigate possible causation effects. Additionally, we deploy a multi-path attribution mapping for enriching and validating explanations. We demonstrate the effectiveness of our approach on a synthetic benchmark suite and two medical datasets.

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Primary author

Mr Lukas Klein (DKFZ, Helmholtz Imaging )

Co-authors

Mr João Carvalho (ETH Zürich) Mrs Mennatallah El-Assady (ETH Zürich) Prof. Joachim Buhmann (ETH Zürich) Dr Paolo Penna (ETH Zürich) Dr Paul Jäger (DKFZ, Helmholtz Imaging )

Presentation materials

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