如何通過Java代碼設置Weka網格搜索的評估標准

Question

我需要通過Java代碼為Weka網格搜索設置評估標准。 我添加了以下代碼。 但這是行不通的。

    int EVALUATION_CC = 0;
    int EVALUATION_RMSE = 1;
    int EVALUATION_RRSE = 2;
    int EVALUATION_MAE = 3;
    int EVALUATION_RAE = 4;
    int EVALUATION_COMBINED = 5;
    int EVALUATION_ACC = 6;
    int EVALUATION_KAPPA = 7;    
    Tag[] TAGS_EVALUATION = {
        new Tag(EVALUATION_CC, "CC", "Correlation coefficient"),
        new Tag(EVALUATION_RMSE, "RMSE", "Root mean squared error"),
        new Tag(EVALUATION_RRSE, "RRSE", "Root relative squared error"),
        new Tag(EVALUATION_MAE, "MAE", "Mean absolute error"),
        new Tag(EVALUATION_RAE, "RAE", "Root absolute error"),
        new Tag(EVALUATION_COMBINED, "COMB", "Combined = (1-abs(CC)) + RRSE + RAE"),
        new Tag(EVALUATION_ACC, "ACC", "Accuracy"),
        new Tag(EVALUATION_KAPPA, "KAP", "Kappa")
    };
    SelectedTag st=new SelectedTag(EVALUATION_ACC, TAGS_EVALUATION);
    GridSearch gs = new GridSearch();
    gs.setEvaluation(st);

誰能告訴我該怎么做？

Answer 1

檢查一下

GridSearch gs = new GridSearch(); 
int requiredIndex = 6; // for accuracy
SelectedTag st=new SelectedTag(requiredIndex , weka.classifiers.meta.GridSearch.TAGS_EVALUATION);
gs.setEvaluation(st);

Answer 2

我遇到了同樣的問題，但最終我使用了以下方法使其工作：

int waucIndex = 8;
SelectedTag st=new SelectedTag(waucIndex , weka.classifiers.meta.GridSearch.TAGS_EVALUATION);
search.setEvaluation(st);

您可以通過執行以下操作來驗證其設置是否正確：

System.out.println(search.getEvaluation());