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arXiv · 2410.03056

Towards an Improved Metric for Evaluating Disentangled Representations

Sahib Julka·Yashu Wang·Michael Granitzer
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Abstract

Disentangled representation learning plays a pivotal role in making representations controllable, interpretable and transferable. Despite its significance in the domain, the quest for reliable and consistent quantitative disentanglement metric remains a major challenge. This stems from the utilisation of diverse metrics measuring different properties and the potential bias introduced by their design. Our work undertakes a comprehensive examination of existing popular disentanglement evaluation metrics, comparing them in terms of measuring aspects of disentanglement (viz. Modularity, Compactness, and Explicitness), detecting the factor-code relationship, and describing the degree of disentanglement. We propose a new framework for quantifying disentanglement, introducing a metric entitled \emph{EDI}, that leverages the intuitive concept of \emph{exclusivity} and improved factor-code relationship to minimize ad-hoc decisions. An in-depth analysis reveals that EDI measures essential properties while offering more stability than existing metrics, advocating for its adoption as a standardised approach.

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Sahib Julka, Yashu Wang, Michael Granitzer. 2024-10-04. Towards an Improved Metric for Evaluating Disentangled Representations. https://arxiv.org/abs/2410.03056

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