Title :
Memetic Pareto Evolutionary Artificial Neural Networks for the Determination of Growth Limits of Listeria Monocytogenes
Author :
Fernandez, Juan Carlos ; Gutierrez, Pedro Antonio ; Hervas, C. ; Martinez, Francisco J.
Author_Institution :
Dept. of Comput. Sci., Univ. of Cordoba, Cordoba
Abstract :
The main objective of this work is to automatically design neural network models with sigmoidal basis units for classification tasks, so that classifiers are obtained in the most balanced way possible in terms of CCR and sensitivity (given by the lowest percentage of examples correctly predicted to belong to each class). We present a memetic Pareto evolutionary NSGA2 (MPENSGA2) approach based on the Pareto-NSGAII evolution (PNSGAII) algorithm. We propose to augmente it with a local search using the improved Rprop-IRprop algorithm for the prediction of growth/no growth of L. monocytogenes as a function of the storage temperature, pH, citric (CA) and ascorbic acid (AA). The results obtained show that the generalization ability can be more efficiently improved within a framework that is multi-objective instead of a within a single-objective one.
Keywords :
Pareto optimisation; biology computing; evolutionary computation; microorganisms; neural nets; pattern classification; search problems; IRprop algorithm; ascorbic acid; citric acid; listeria monocytogenes; memetic Pareto evolutionary artificial neural networks; storage temperature; Artificial neural networks; Computer architecture; Computer network management; Computer science; Convergence; Evolutionary computation; Hybrid intelligent systems; Neural networks; Prediction algorithms; Predictive models; Accuracy; Multi-class; Multi-objective; Pareto; Sensitivity;
Conference_Titel :
Hybrid Intelligent Systems, 2008. HIS '08. Eighth International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-0-7695-3326-1
Electronic_ISBN :
978-0-7695-3326-1
DOI :
10.1109/HIS.2008.13