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Poster

Discovering Features with Synergistic Interactions in Multiple Views

Chohee Kim · Mihaela van der Schaar · Changhee Lee


Abstract:

Discovering features with synergistic interactions in multi-view data, which provides more information gain when considered together than when considered separately, is particularly valuable. This fosters a more comprehensive understanding of the target outcome from diverse perspectives (views). However, despite the increasing opportunities presented by multi-view data, surprisingly little attention has been paid to uncovering these crucial interactions.To address this gap, we formally define the problem of selecting synergistic and non-synergistic feature subsets in multi-view data, leveraging an information-theoretic concept known as interaction information. Then, building upon this, we introduce a novel deep learning-based feature selection method, employing a Bernoulli relaxation to solve such an intractable subset problem.Experiments on synthetic, semi-synthetic, and real-world multi-view datasets demonstrate that our model discovers relevant feature subsets with synergistic and non-synergistic interactions, achieving remarkable similarity to the ground truth. Furthermore, we corroborate the discovered features with supporting medical and scientific literature, underscoring its utility in elucidating complex dependencies and interactions in multi-view data.

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