Search Results for author: William B. Langdon

Found 5 papers, 0 papers with code

GI Software with fewer Data Cache Misses

no code implementations6 Apr 2023 William B. Langdon, Justyna Petke, Aymeric Blot, David Clark

By their very name caches are often overlooked and yet play a vital role in the performance of modern and indeed future hardware.

Failed Disruption Propagation in Integer Genetic Programming

no code implementations4 Apr 2022 William B. Langdon

We inject a random value into the evaluation of highly evolved deep integer GP trees 9743720 times and find 99. 7percent Suggesting crossover and mutation's impact are dissipated and seldom propagate outside the program.

Symbolic Regression

Genetic Improvement @ ICSE 2020

no code implementations31 Jul 2020 William B. Langdon, Westley Weimer, Justyna Petke, Erik Fredericks, Seongmin Lee, Emily Winter, Michail Basios, Myra B. Cohen, Aymeric Blot, Markus Wagner, Bobby R. Bruce, Shin Yoo, Simos Gerasimou, Oliver Krauss, Yu Huang, Michael Gerten

Following Prof. Mark Harman of Facebook's keynote and formal presentations (which are recorded in the proceedings) there was a wide ranging discussion at the eighth international Genetic Improvement workshop, GI-2020 @ ICSE (held as part of the 42nd ACM/IEEE International Conference on Software Engineering on Friday 3rd July 2020).

Fast Generation of Big Random Binary Trees

no code implementations13 Jan 2020 William B. Langdon

random_tree() is a linear time and space C++ implementation able to create trees of up to a billion nodes for genetic programming and genetic improvement experiments.

The State and Future of Genetic Improvement

no code implementations27 Jun 2019 William B. Langdon, Westley Weimer, Christopher Timperley, Oliver Krauss, Zhen Yu Ding, Yiwei Lyu, Nicolas Chausseau, Eric Schulte, Shin Hwei Tan, Kevin Leach, Yu Huang, Gabin An

We report the discussion session at the sixth international Genetic Improvement workshop, GI-2019 @ ICSE, which was held as part of the 41st ACM/IEEE International Conference on Software Engineering on Tuesday 28th May 2019.

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