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Automatically Evolving Lookup Tables for Function Approximation

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Genetic Programming (EuroGP 2020)


Many functions, such as square root, are approximated and sped up with lookup tables containing pre-calculated values.

We introduce an approach using genetic algorithms to evolve such lookup tables for any smooth function. It provides double precision and calculates most values to the closest bit, and outperforms reference implementations in most cases with competitive run-time performance.

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Correspondence to Oliver Krauss .

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Krauss, O., Langdon, W.B. (2020). Automatically Evolving Lookup Tables for Function Approximation. In: Hu, T., Lourenço, N., Medvet, E., Divina, F. (eds) Genetic Programming. EuroGP 2020. Lecture Notes in Computer Science(), vol 12101. Springer, Cham.

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-44093-0

  • Online ISBN: 978-3-030-44094-7

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