How Online Learning Approaches Ornstein Uhlenbeck Processes

  • Authors:
  • Fredrik A. Dahl

  • Affiliations:
  • Aff1 Aff2

  • Venue:
  • Neural Processing Letters
  • Year:
  • 2006

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Abstract

We show that under reasonable conditions, online learning near a local minimum is similar to a multivariate Ornstein Uhlenbeck process. This implies that the parameter state oscillates randomly around the minimum point, with a Gaussian limiting distribution. We also develop a simple hypothesis test that detects Ornstein Uhlenbeck properties without storing the history of the learning process.