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Recently there has been considerable interest in determining whether, and how much, evolutionary pressure for genetic robustness influences evolutionary processes. In this paper, we attempt to show that this evolutionary pressure does have a significant effect in typical genetic programming problems. Specifically we demonstrate that in a standard genetic(More)
The population size in evolutionary computation is a significant parameter affecting computational effort and the ability to successfully evolve solutions. We find that population size sensitivity - how much a genetic program's efficiency varies with population size - is correlated with problem complexity. An analysis of population sizes was conducted using(More)
The use of synthetic imagery for testing biometric systems is relatively new and in need of further exploration. In this paper, we describe methods and procedures for using synthetic images generated from shape and texture data to refine and extend the current state of the art of face recognition performance testing. Two example experiments are presented(More)
The views, opinions, and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official Government position, policy, or decision, unless designated by other documentation. ABSTRACT Digitally assisted collaboration is an emerging paradigm for the next generation of information systems. Computer-Supported(More)
We hypothesize that the relationship between parameter settings, specifically parameters controlling mutation, and performance is non-linear in genetic programs. Genetic programming environments have few means for a priori determination of appropriate parameters values. The hypothesized nonlinear behavior of genetic programming creates difficulty in(More)
In this paper we test whether a correlation exists between the optimal mutation rate and problem difficulty. We find that the range of optimal mutation rates is inversely proportional to problem difficulty. We use numerical sweeps of the mutation rate parameter to probe a problem with tunable difficulty. The tests include 3 different types of individual(More)
Approved for public release; distribution unlimited. The views, opinions, and/or findings contained in this report are those of The MITRE Corporation and should not be construed as an official Government position, policy, or decision, unless designated by other documentation. ABSTRACT Traditional real-time operating system vendors have recently started to(More)
  • ELECTRONIC PUBLISHING, ON THE, +5 authors Robert Vienneau
  • 1998
PREFACE The purpose of this handbook is to provide guidelines to World Wide Web (WWW) information providers for disseminating information through the WWW. This version of the handbook is a Data & Analysis Center for Software (DACS) State of the Art Report (SOAR). A hypertext version of the handbook is available on the World Wide Web at the DACS home page(More)
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