2017

Geometry of Optimization and Implicit Regularization in Deep Learning

Neyshabur, Behnam, Tomioka, Ryota, Salakhutdinov, Ruslan et al.

Understand

We argue that the optimization plays a crucial role in generalization of deep learning models through implicit regularization.

  • We do this by demonstrating that generalization ability is not controlled by network size but rather by some other implicit control.
  • We then demonstrate how changing the empirical optimization procedure can improve generalization, even if actual optimization quality is not affected.
  • We do so by studying the geometry of the parameter space of deep networks, and devising an optimization algorithm attuned to this geometry.

Built on

  • Gradient-based learning applied to document recognition

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  • Neural network learning: Theoretical foundations

    Martin Anthony and Peter L Bartlett · 1999

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  • Rank, trace-norm and max-norm

    Nathan Srebro and Adi Shraibman · 2005

    Earlier work this paper cites.

  • Cryptographic hardness for learning intersections of halfspaces

    Adam R Klivansand Alexander A Sherstov · 2006

    Earlier work this paper cites.

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Then

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