Disentanglement in Difference: Directly Learning Semantically Disentangled Representations by Maximizing Inter-Factor Differences
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Abstract (arXiv)
In this study, Disentanglement in Difference(DiD) is proposed to address the inherent inconsistency between the statistical independence of latent variables and the goal of semantic disentanglement in disentanglement representation learning. Conventional disentanglement methods achieve disentanglement representation by improving statistical independence among latent variables. However, the statistical independence of latent variables does not necessarily imply that they are semantically unrelated, thus, improving statistical independence does not always enhance disentanglement performance. To address the above issue, DiD is proposed to directly learn semantic differences rather than the statistical independence of latent variables. In the DiD, a Difference Encoder is designed to measure the semantic differences; a contrastive loss function is established to facilitate inter-dimensional comparison. Both of them allow the model to directly differentiate and disentangle distinct semantic factors, thereby resolving the inconsistency between statistical independence and semantic disentanglement. Experimental results on the dSprites and 3DShapes datasets demonstrate that the proposed DiD outperforms existing mainstream methods across various disentanglement metrics.
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References · 18
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- 2020Measuring Disentanglement: A Review of Metricscited by 70
- 2019Disentangling Factors of Variation Using Few Labelscited by 57
- 2019Demystifying Inter-Class Disentanglementcited by 31
- 2021Where and What? Examining Interpretable Disentangled Representationscited by 27
- 2020Evaluating the Disentanglement of Deep Generative Models through Manifold Topologycited by 20
- 2021Scaling-up Disentanglement for Image Translationcited by 15
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