A Survey on Data Clasification with KDD-cup-99 Intrusion Detectin Dataset

by Akira Imada (March 2006)


Essencially good paper to start with.

Neutral mutation

In abstract authos claimed "... One such property is neutrality in which many genotypes develop into the same phenotype. This paper examines the effect of neutral genotype-phenotype mappings on artificial evolutionary systems ... It is demonstrated how the right kind of redundancy has the potential of significantly aiding the evolvability of a system."

"It is possible to change the genotype, via mutation for example, without affecting the phenotype.Such mutations are called neutral mutations. (M. Kimura "Population genetics, molecular evolution, and the neutral theory: selected papersf, The University of Chicago Press, Chicago(1994).)

"Random neutral walks were performed. Starting from a given genotype, a single mutation neighbour was randomly selected that mapped into the same phenotype, i.e. a neutral mutation was made. Each single mutation neighbour of the new genotype was then assessed to determine whether any new phenotypes were discovered. This process was repeated for a fixed number of steps..."

It is "demonstrated how neutrality (in the RBN mapping) allowed for the discovery of many more phenotypes than would be the case for a non-neutral mapping