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JACIII Vol.15 No.8 pp. 1175-1185
doi: 10.20965/jaciii.2011.p1175
(2011)

Paper:

Robustness to Bit Inversion in Registers and Acceleration of Program Evolution in On-Board Computer

Tomohiro Harada, Masayuki Otani, Yoshihiro Ichikawa,
Kiyohiko Hattori, Hiroyuki Sato, and Keiki Takadama

The University of Electro-Communications, 3rd Floor in West-6 Building, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan

Received:
May 20, 2011
Accepted:
September 9, 2011
Published:
October 20, 2011
Keywords:
program evolution, Tierra, single-event upset, bit inversion, on-board computer, UNITEC-1
Abstract

This paper focuses on an on-board computer (OBC) that evolves computer programs through bit inversion and targets analyzing robustness against bit inversion in registers. We also propose a new method that can change the number of computer programs dynamically. Intensive experiments revealed the following: (1) Correct programs can be maintained even in bit inversion in registers in addition to bit inversion in instructions. (2) Our proposal accelerates program evolution by increasing the population size, i.e., the number of programs, within fixed memory size.

Cite this article as:
Tomohiro Harada, Masayuki Otani, Yoshihiro Ichikawa,
Kiyohiko Hattori, Hiroyuki Sato, and Keiki Takadama, “Robustness to Bit Inversion in Registers and Acceleration of Program Evolution in On-Board Computer,” J. Adv. Comput. Intell. Intell. Inform., Vol.15, No.8, pp. 1175-1185, 2011.
Data files:
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