Empirical Risk Minimization

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This is a method proposed by Bahl et al. 1988 A new algorithm for the estimation of hidden Markov model parameters.

In graphical models, Empirical Risk Minimization is an interesting training method that does not aim at maximizing the likelihood on training data. It has the following advantages:

  • It might prevent overfitting the training data.
  • Summing up the local conditional likelihood might be more resilient to errors than calculating the product of conditional likelihoods.

Motivation

Problem Formulation

Empirical Risk Minimization

Some Reflections

Related Papers

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