Evolving in Real Time a Neural Net Controller of Robot-Arm: Track and Evolve

  • Authors:
  • Ahmed Lehireche;Abdellatif Rahmoune

  • Affiliations:
  • Computer Science Department, University of Sidi Bel-Abbes, 22000, Algeria, e-mail: elhir@univ-sba.dz;Faculty of Planning and Management, King Faisal University, KSA, e-mail: arahmoun@kfu.edu.sa

  • Venue:
  • Informatica
  • Year:
  • 2004

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Abstract

Evolutionary Engineering (EE) is defined to be “the art of using evolutionary algorithms approach such as genetic algorithms to build complex systems”. This paper deals with a neural net based system. It analyses ability of genetically trained neural nets to control Simulated robot arm, witch tries to track a moving object. In difference from classical Approaches neural network learning is performed on line, i.e., in real time. Usually systems are built/evolved, i.e., genetically trained separately of their utilization. That is how it is commonly done. It's a fact that evolution process is heavy on time; that's why Real-Time approach is rarely taken into consideration. The results presented in this paper show that such approach (Real-Time EE) is possible. These successful results are essentially due to the “continuity” of the target's trajectory. In EE terms, we express this by the Neighbourhood Hypothesis (NH) concept.