如何在eclipse java中重用从explorer（在weka中）创建的已保存分类器 [英] How to reuse saved classifier created from explorer(in weka) in eclipse java

问题描述

我在WEKA中创建了一个分类器，我把它保存在我的硬盘上，现在我想在eclipse中使用weka api来使用那个分类器。

I have created a classifier in WEKA, i saved it on my hard-disk, now I want to use that classifier in eclipse using weka api.

怎么能我这样做？请指导我...谢谢

How can i do this? please guide me to this... thank you

推荐答案

以下是加载模型以预测实例值的示例。示例模型是在Weka Explorer中创建并保存的J48决策树。它是根据Weka提供的名义天气数据建造的。它被称为tree.model。

Here is an example of loading a model to predict the value of instances. The example model is a J48 decision tree created and saved in the Weka Explorer. It was built from the nominal weather data provided with Weka. It is called "tree.model".

 //load model
String rootPath="/some/where/"; 
Classifier cls = (Classifier) weka.core.SerializationHelper.read(rootPath+"tree.model");

//predict instance class values
Instances originalTrain= //load or create Instances to predict

//which instance to predict class value
int s1=0;  

//perform your prediction
double value=cls.classifyInstance(originalTrain.instance(s1));

//get the name of the class value
String prediction=originalTrain.classAttribute().value((int)value); 

System.out.println("The predicted value of instance "+
                    Integer.toString(s1)+
                    ": "+prediction); 

此输出为：

The predicted value of instance 0: no  

Weka api的一个很好的起源资源和序列化是这里！

A great beginers resource for the Weka api and Serialization is here!

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