Example usage for weka.attributeSelection GeneticSearch GeneticSearch

Introduction

In this page you can find the example usage for weka.attributeSelection GeneticSearch GeneticSearch.

Prototype

public GeneticSearch() 

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Document

Constructor.

Usage

From source file:trabfs.machineLeaningFrameWork.search.misc.BlackBox.java

public double startBlackBox(Problema p) {
    try {/*w w  w.  j  a v  a 2  s. com*/
        Random r = new Random();
        //cria avaliador de solucao
        AvaliadordeSolucao ads = new AvaliadordeSolucao(p);
        //seta busca            
        GeneticSearch gs = new GeneticSearch();
        gs.setSeed(r.nextInt());
        //seta evaluator
        WrapperSubsetEval wse = new WrapperSubsetEval();
        //seta classificador
        IBk ibk = new IBk(3);
        // seta selecao de atributos
        AttributeSelection as = new AttributeSelection();

        //liga componentes
        wse.setClassifier(ibk);
        as.setSearch(gs);
        as.setEvaluator(wse);

        //usa metodo e pega solucao
        Solucao s = new Solucao(p.getNumAtributos() - 1);
        s.initZero();
        as.SelectAttributes(p.getInstances());
        for (int i = 0; i < as.selectedAttributes().length - 1; i++) {
            s.set(as.selectedAttributes()[i], 1);
        }
        ads.avalia(s);
        return s.getQuality();

    } catch (Exception ex) {
        Logger.getLogger(BlackBox.class.getName()).log(Level.SEVERE, null, ex);
    }
    return 0.0;
}

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