Deep Learning and Physics by Akinori Tanaka & Akio Tomiya & Koji Hashimoto

Author:Akinori Tanaka & Akio Tomiya & Koji Hashimoto
Language: eng
Format: epub
ISBN: 9789813361089
Publisher: Springer Singapore

But here is a trap. Equation (6.102) certainly measures the reality, but it only measures goodness for a single x fake. For example, by sampling from the generator, we obtain many images

(6.103)

and if most of the images are similar dog images, the individual (6.102) values are certainly large, but it is not possible to create a new image, so, resultantly, the machine has not generalized. In other words, generators are required to generate realistic images that are “sufficiently diverse.” Entropy can also be used to measure such diversity. We just need to calculate the entropy of the expectation value of the classification probability when various x fake are input,

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