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Related Experiment Videos

Discovering Neural Nets with Low Kolmogorov Complexity and High Generalization Capability.

Jurgen Schmidhuber1

  • 1IDSIA, Switzerland

Neural Networks : the Official Journal of the International Neural Network Society
|July 1, 1997
PubMed
Summary

This study introduces a novel method using algorithmic complexity and a universal prior to find simple neural networks. This approach enhances generalization capabilities beyond traditional algorithms, particularly for specific problems.

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Area of Science:

  • Machine Learning
  • Algorithmic Information Theory
  • Neural Networks

Background:

  • Current neural network learning algorithms often seek simplicity for better generalization, adhering to Occam's razor.
  • Existing simplicity measures lack the universality and power of Kolmogorov complexity and Solomonoff's algorithmic probability.
  • Many Bayesian approaches struggle with selecting appropriate prior distributions.

Purpose of the Study:

  • To address limitations in simplicity measures and prior selection for neural network learning.
  • To introduce a probabilistic method for finding algorithmically simple solutions with high generalization capability.

Main Methods:

  • Review of algorithmic complexity theory and the Solomonoff-Levin universal prior.
  • Development of a probabilistic search method based on Levin complexity and optimal universal search.

Related Experiment Videos

  • Use of efficient, self-sizing programs to generate solution candidates influencing runtime and storage.
  • Main Results:

    • Demonstration of a method to discover neural networks with low Kolmogorov complexity and high generalization.
    • Simulations on toy problems show superior generalization results compared to previous neural network algorithms.
    • The method effectively identifies 'good' programs that compute algorithmically probable solutions fitting training data.

    Conclusions:

    • The proposed method, grounded in algorithmic probability, offers a powerful alternative for neural network learning.
    • Significant improvements in generalization are achievable, outperforming existing algorithms on specific tasks.
    • Further research is needed for large-scale applications and incremental learning.