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2008 002

Improving Small Population Performance under Noise with Viral Infection + Tropism

Sato, Y., Goldberg, D. E., Sastry, K. (2008)
TR No.: 2008002 | Download PDF | Download PS

Abstract: In this paper we report on the effect of viral infection with tropism on the formation of building blocks in genetic operations. In previous research, we applied genetic algorithms to the analysis of time-series signals with noise. We demonstrated the possibility of reducing the number of required entities and improving the rate of convergence […]

2008 001

Classifier Conditions Using Gene Expression Programming

Wilson, S. W. (2008)
TR No.: 2008001 | Download PDF | Download PS

Abstract:The classifier system XCSF was modified to use gene expression programming for the evolution and functioning of the classifier conditions.  The aim was to fit environmental regularities better than is typically possible with conventional rectilinear conditions. An initial experiment approximating a nonlinear oblique environment showed excellent fit to the regularities. 
Related PostsClassifier Conditions based on Convex HullsIntroducing Start Expression Genes to […]

2007 020

Discovering Building Blocks for Human Based Genetic Algorithms

Ueda, T., Yasui, N. I., Llorà, X., Sastry, K. Goldberg, D. E. (2008)
TR No.: 2007020 | Download PDF | Download PS

The push for rapid innovation and creativity in this Internet age places a premium on eective integration of both human and computer-generated knowledge. One of the key components of a distributed and scalable environment for accomplishing this integration called DISCUS is the human-based genetic algorithm (HBGA)–a GA where humans perform genetic operations. This paper takes […]