InfoGAN – unsupervised attribute extraction

In the previous sections, we have learned how to use auxiliary information such as the labels of data to improve the image quality generated by GANs. However, it is not always possible to prepare accurate labels of training samples beforehand. Sometimes, it is even difficult for us to accurately describe the labels of extremely complex data. In this section, we will introduce another excellent model from the GAN family, InfoGAN, which is capable of extracting data attributes during training in an unsupervised manner. InfoGAN was proposed by Xi Chen, Yan Duan, Rein Houthooft, et. al. in their paper, InfoGAN: Interpretable Representation Learning by Information Maximizing Generative Adversarial Nets. It showed that GANs could not only learn to generate realistic samples but also learn semantic features, which are essential to sample...