如何使用java代码在weka中用新实例测试现有模型？

发布于 2024-11-28 10:00:27 字数 381 浏览 0 评论 0原文

我有一个通过 Weka GUI 获得的分类器之一的 .model 文件。现在我想在某些实例上测试这个模型。谁能告诉我该怎么做？

Classifier cModel = (Classifier)new NaiveBayes();  
cModel.buildClassifier(isTrainingSet);

我不想像这段代码一样一次又一次地构建分类器。如何使用 .model 文件执行此操作？

 // Test the model
 Evaluation eTest = new Evaluation(isTrainingSet);
 eTest.evaluateModel(cModel, isTrainingSet);

原文

I have a .model file of one of the classifier which I got through Weka GUI. Now I would like to test this model on some instance. Can anyone tell me how to do this ?

Classifier cModel = (Classifier)new NaiveBayes();  
cModel.buildClassifier(isTrainingSet);

I don't want to build classifier again and again like in this code. How to do this using .model file?

 // Test the model
 Evaluation eTest = new Evaluation(isTrainingSet);
 eTest.evaluateModel(cModel, isTrainingSet);

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浮生未歇 2024-12-05 10:00:27

将您的代码与 Omer 提供的链接中找到的代码相结合：

Classifier cModel = (Classifier)new NaiveBayes();  
cModel.buildClassifier(isTrainingSet);  

weka.core.SerializationHelper.write("/some/where/nBayes.model", cModel);

Classifier cls = (Classifier) weka.core.SerializationHelper.read("/some/where/nBayes.model");

// Test the model
Evaluation eTest = new Evaluation(isTrainingSet);
eTest.evaluateModel(cls, isTrainingSet);

Combining your code with the code found in the link provided by Omer:

Classifier cModel = (Classifier)new NaiveBayes();  
cModel.buildClassifier(isTrainingSet);  

weka.core.SerializationHelper.write("/some/where/nBayes.model", cModel);

Classifier cls = (Classifier) weka.core.SerializationHelper.read("/some/where/nBayes.model");

// Test the model
Evaluation eTest = new Evaluation(isTrainingSet);
eTest.evaluateModel(cls, isTrainingSet);

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