Computer Science – Neural and Evolutionary Computing
Scientific paper
2007-06-07
D. Sofge and D. Elliott, "Improved Neural Modeling of Real-World Systems Using Genetic Algorithm Based Variable Selection," In
Computer Science
Neural and Evolutionary Computing
4 pages
Scientific paper
Neural network models of real-world systems, such as industrial processes, made from sensor data must often rely on incomplete data. System states may not all be known, sensor data may be biased or noisy, and it is not often known which sensor data may be useful for predictive modelling. Genetic algorithms may be used to help to address this problem by determining the near optimal subset of sensor variables most appropriate to produce good models. This paper describes the use of genetic search to optimize variable selection to determine inputs into the neural network model. We discuss genetic algorithm implementation issues including data representation types and genetic operators such as crossover and mutation. We present the use of this technique for neural network modelling of a typical industrial application, a liquid fed ceramic melter, and detail the results of the genetic search to optimize the neural network model for this application.
Elliott David L.
Sofge Donald A.
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