title: Genetic algorithm pruning of probabilistic neural networks in medical disease estimation.
abstract: A hybrid model consisting of an Artificial Neural Network (ANN) and a Genetic Algorithm procedure for diagnostic risk factors selection in Medicine is proposed in this paper. A medical disease prediction may be viewed as a pattern classification problem based on a set of clinical and laboratory parameters. Probabilistic Neural Network models were assessed in terms of their classification accuracy concerning medical disease prediction. A Genetic Algorithm search was performed to examine potential redundancy in the diagnostic factors. This search led to a pruned ANN architecture, minimizing the number of diagnostic factors used during the training phase and therefore minimizing the number of nodes in the ANN input and hidden layer as well as the Mean Square Error of the trained ANN at the testing phase. As a conclusion, a number of diagnostic factors in a patient's data record can be omitted without loss of fidelity in the diagnosis procedure.
authors: Informatics Laboratory, Department of Nursing, Technological Educational Institute of Kavala, GR-68300, Didymoteicho, Greece. dmantzar@med.duth.gr
authors: Dimitrios
authors: D
authors: Mantzaris
authors: George
authors: G
authors: Anastassopoulos
authors: Adam
authors: A
authors: Adamopoulos
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D001499:Bayes Theorem; D002675:Child, Preschool; D003936:Diagnosis, Computer-Assisted; D005260:Female; D005823:Genetics / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007668:Kidney / Q000473:pathology; D007682:Kidney Pelvis / Q000502:physiology; D008297:Male; D015233:Models, Statistical; D016571:Neural Networks, Computer; D011379:Prognosis; D015203:Reproducibility of Results; D012307:Risk Factors; D014463:Ultrasonography; D014551:Urinary Tract / Q000000981:diagnostic imaging; D014552:Urinary Tract Infections / Q000175:diagnosis* / Q000453:epidemiology / Q000652:urine; D014556:Urine / Q000382:microbiology; D014563:Urodynamics / Q000502:physiology; D014718:Vesico-Ureteral Reflux / Q000175:diagnosis