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Learning by Population Genetics and Matrix Riccati Equation.

Sergei Kozyrev1

  • 1Steklov Mathematical Institute of Russian Academy of Sciences, Gubkina St. 8, 119991 Moscow, Russia.

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|February 25, 2023
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Summary
This summary is machine-generated.

This study models learning using population genetics concepts, linking Eigen's quasispecies model to overfitting in machine learning. It explains genomic evolution patterns and identifies a criterion for detecting overfitting.

Keywords:
evolution theorylearning theorystatistical mechanics

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Area of Science:

  • Population Genetics
  • Machine Learning Theory
  • Genomic Evolution

Background:

  • Eigen's quasispecies model describes error thresholds in RNA virus replication.
  • Genomic evolution exhibits patterns potentially linked to error rates.
  • Overfitting is a common challenge in machine learning models.

Purpose of the Study:

  • To introduce a learning model generalizing Eigen's quasispecies model.
  • To explore the connection between population genetics error catastrophe and machine learning overfitting.
  • To provide a criterion for identifying overfitting in learning systems.

Main Methods:

  • Mathematical modeling based on matrix Riccati equations.
  • Analysis of the Perron-Frobenius eigenvalue in the limit of large matrices.
  • Drawing parallels between population genetics and learning theory concepts.

Main Results:

  • Eigen's model is represented as a matrix Riccati equation.
  • Error catastrophe in Eigen's model corresponds to eigenvalue divergence.
  • A known eigenvalue estimate explains genomic evolution patterns.

Conclusions:

  • The error catastrophe in Eigen's model is analogous to overfitting.
  • This analogy provides a criterion for detecting overfitting in learning.
  • The model offers insights into both biological and computational learning processes.