Guiding InfoGAN with Semi-supervision

Autor: Otmar Hilliges, Adrian Spurr, Emre Aksan
Rok vydání: 2017
Předmět:
Zdroj: Machine Learning and Knowledge Discovery in Databases ISBN: 9783319712482
ECML/PKDD (1)
Proceedings of Machine Learning and Knowledge Discovery in Databases. ECML PKDD 2017
Lecture Notes in Computer Science
Lecture Notes in Computer Science-Machine Learning and Knowledge Discovery in Databases
ISSN: 0302-9743
1611-3349
Popis: In this paper we propose a new semi-supervised GAN architecture (ss-InfoGAN) for image synthesis that leverages information from few labels (as little as \(0.22\%\), max. \(10\%\) of the dataset) to learn semantically meaningful and controllable data representations where latent variables correspond to label categories. The architecture builds on Information Maximizing Generative Adversarial Networks (InfoGAN) and is shown to learn both continuous and categorical codes and achieves higher quality of synthetic samples compared to fully unsupervised settings. Furthermore, we show that using small amounts of labeled data speeds-up training convergence. The architecture maintains the ability to disentangle latent variables for which no labels are available. Finally, we contribute an information-theoretic reasoning on how introducing semi-supervision increases mutual information between synthetic and real data. Code related to this chapter is available at: https://github.com/spurra/ss-infogan.
Databáze: OpenAIRE