@inproceedings{bouchacourt2018multi-level, author = {Bouchacourt, Diane and Tomioka, Ryota and Nowozin, Sebastian}, title = {Multi-Level Variational Autoencoder: Learning Disentangled Representations from Grouped Observations}, booktitle = {AAAI 2018}, year = {2018}, month = {February}, abstract = {We would like to learn a representation of the data that reflects the semantics behind a specific grouping of the data, where within a group the samples share a common factor of variation. For example, consider a set of face images grouped by identity. We wish to anchor the semantics of the grouping into a disentangled representation that we can exploit. However, existing deep probabilistic models often assume that the samples are independent and identically distributed, thereby disregard the grouping information. We present the Multi-Level Variational Autoencoder (ML-VAE), a new deep probabilistic model for learning a disentangled representation of grouped data. The ML-VAE separates the latent representation into semantically relevant parts by working both at the group level and the observation level, while retaining efficient test-time inference. We experimentally show that our model (i) learns a semantically meaningful disentanglement, (ii) enables control over the latent representation, and (iii) generalises to unseen groups.}, url = {http://approjects.co.za/?big=en-us/research/publication/multi-level-variational-autoencoder-learning-disentangled-representations-grouped-observations/}, }