The Emergence of Spectral Universality in Deep Networks

27 Feb 2018Jeffrey PenningtonSamuel S. SchoenholzSurya Ganguli

Recent work has shown that tight concentration of the entire spectrum of singular values of a deep network's input-output Jacobian around one at initialization can speed up learning by orders of magnitude. Therefore, to guide important design choices, it is important to build a full theoretical understanding of the spectra of Jacobians at initialization... (read more)

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