eprintid: 1024 rev_number: 8 eprint_status: archive dir: disk0/00/00/10/24 datestamp: 2011-12-05 10:30:11 lastmod: 2011-12-05 10:30:11 status_changed: 2011-12-05 10:30:11 type: article metadata_visibility: show creators_name: Patrinos, Panagiotis creators_name: Alexandridis, Alex creators_name: Ninos, Konstantinos creators_name: Sarimveis, Haralambos creators_id: panagiotis.patrinos@imtlucca.it creators_id: creators_id: creators_id: title: Variable selection in nonlinear modeling based on RBF networks and evolutionary computation ispublished: pub subjects: QA subjects: QA76 divisions: CSA full_text_status: none keywords: Variable selection; radial basis functions; neural networks; evolutionary computation; gas furnace data; Mackey glass data; quantitative structure activity relationship (QSAR) abstract: In this paper a novel variable selection method based on Radial Basis Function (RBF) neural networks and genetic algorithms is presented. The fuzzy means algorithm is utilized as the training method for the RBF networks, due to its inherent speed, the deterministic approach of selecting the hidden node centers and the fact that it involves only a single tuning parameter. The trade-off between the accuracy and parsimony of the produced model is handled by using Final Prediction Error criterion, based on the RBF training and validation errors, as a fitness function of the proposed genetic algorithm. The tuning parameter required by the fuzzy means algorithm is treated as a free variable by the genetic algorithm. The proposed method was tested in benchmark data sets stemming from the scientific communities of time-series prediction and medicinal chemistry and produced promising results. date: 2010 date_type: published publication: International journal of neural systems volume: 20 number: 5 publisher: World Scientific Publishing pagerange: 365-379 id_number: 10.1142/S0129065710002474 refereed: TRUE issn: 0129-0657 official_url: http://www.worldscinet.com/ijns/20/2005/S0129065710002474.html citation: Patrinos, Panagiotis and Alexandridis, Alex and Ninos, Konstantinos and Sarimveis, Haralambos Variable selection in nonlinear modeling based on RBF networks and evolutionary computation. International journal of neural systems, 20 (5). pp. 365-379. ISSN 0129-0657 (2010)