资源论文Signal recovery from Pooling Representations

Signal recovery from Pooling Representations

2020-03-03 | |  68 |   45 |   0

Abstract

In this work we compute lower Lipschitz bounds of 图片.png pooling operators for p = 1, 2, ∞ as well as 图片.png pooling operators preceded by halfrectification layers. These give sufficient conditions for the design of invertible neural network layers. Numerical experiments on MNIST and image patches confirm that pooling layers can be inverted with phase recovery algorithms. Moreover, the regularity of the inverse pooling, controlled by the lower Lipschitz constant, is empirically verified with a nearest neighbor regression.

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