Genetic Algorithms In A Dynamically
Changing Environment
Author(s)
B. Dilimulati & I. Bruha
Abstract
Genetic Algorithms (GAs) are search methods based on principles of natural
selection and genetics. GAs attempt to find optimal solutions to a given problem
by manipulating a population of candidate solutions (individuals). In the real
world, we always encounter the problems that need to be solved in a changing
environment. This means that our algorithm needs to be dynamic or even
adaptive to the changing environment. In this paper, we mainly deal with the
adaptive GAs that have a new genetic operator called transformation instead of
the traditional crossover. We use a dynamic problem generator to create a
dynamically changing landscape and study the behavior of the
transformation-based GAs in different parameter settings, such as transformation
rate, mutation rate and segment replacement rate.
Keywords: Genetic Algorithm, transformation operator, dynamically changing
environment.
1 Introduction
Genetic Algorithms (GAs) are mainly used to solve optimization problems, see
e.g. [1, 3, 4, 7]. In fact, there are various optimization methods such as
exhaustive search, analytical optimization, line optimization methods, and
natural optimization methods; natural optimization methods include simulated
annealing, ant colony optimization, and genetic algorithms.
In traditional GAs, the operator set is usually fixed but in the real world we
always encounter problems that need to be solved in a changing environment.
Such problems include target recognition (the sensor performance varies on
environmental conditions); scheduling problems (available resources vary over
Keywords
Genetic Algorithm, transformation operator, dynamically changing
environment.
Related Book
Other papers in this volume
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