Essex Institute of Technology

Dr. W. B. Langdon

Research Information

Bioinformatics Gene Chip Zeta
by July 2005 GP bib logo GP4 reading genetic programming and data structures GP bib coauthors
666universal essex only
CIGPU 2010 FOGA 2011 XPS pics GP bibliography My GP papers Contact details CV much more

Evolving Kernels

Often complicated behaviour of particle swarm and other population based stochastic optimisers on difficult problems can be approximated by a simpler techniques on equivalent landscapes. Here we have used genetic programming to evolve a low pass filter which is applied to the real problem to give a smoother equivalent problem.

Movie PSO (no constriction) 5 Particles Generation 0-24

Trace of PSO swarm (red arrows) and its centre (blue box) on Rastrigin. Lower blue curve is plot of equivalent landscape on which a hill climber (lower blue box) tracks center of the swarm.

More Links

Halting probability video 40 mins 338M
Evolving Benchmarks
Grade-O-Matic
Java native method