Beyond Atoms and Bonds: Contextual Explainability via Molecular Graphical Depictions | Marco Bertolini
Molecular Modelling and Drug Discovery14 Heinä 2022

Beyond Atoms and Bonds: Contextual Explainability via Molecular Graphical Depictions | Marco Bertolini

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Abstract: The field of explainable AI applied to molecular property prediction models has often been reduced to deriving atomic contributions. This has impaired the interpretability of such models, as chemists rather think in terms of larger, chemically meaningful structures, which often do not simply reduce to the sum of their atomic constituents. In this talk I will explain an explanatory framework yielding both local as well as more complex structural attributions. The key idea is to derive such contextual explanations in pixel space, exploiting the property that a molecule is not merely encoded through a collection of atoms and bonds, as is the case for string- or graph-based approaches. I’ll provide evidence that the proposed explanation method satisfies desirable properties, namely sparsity and invariance with respect to the molecule’s symmetries.

Speakers: Marco Bertolini - https://www.linkedin.com/in/marco-bertolini-03907a59/

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