使用java将Exampleset设置为ExampleSet2SimilarityExampleSet Rapidminer运算符
我创建了一个度量相似性的过程。我使用ExampleSet2SimilarityExampleSetoperator,我想在输入中添加一个在代码中生成的示例集 第一个想法是在本地存储库中编写示例集。然后我将使用retrieve操作符读取示例集,并将操作符retrieve的输出连接到操作符ExampleSet2SimilarityExampleSet的输入 所以我想知道我是否可以避免读/写使用java将Exampleset设置为ExampleSet2SimilarityExampleSet Rapidminer运算符,java,machine-learning,data-mining,rapidminer,Java,Machine Learning,Data Mining,Rapidminer,我创建了一个度量相似性的过程。我使用ExampleSet2SimilarityExampleSetoperator,我想在输入中添加一个在代码中生成的示例集 第一个想法是在本地存储库中编写示例集。然后我将使用retrieve操作符读取示例集,并将操作符retrieve的输出连接到操作符ExampleSet2SimilarityExampleSet的输入 所以我想知道我是否可以避免读/写 public class Test { public static void main(
public class Test {
public static void main(String[] args) throws OperatorCreationException, OperatorException{
Test t = new Test();
t.createprocess();
}
public void createprocess() throws OperatorCreationException, OperatorException{
RapidMiner.init();
ExampleSet exampleset = getExampleset();
Operator silimarityOperator = OperatorService.createOperator(ExampleSet2SimilarityExampleSet.class);
// silimarityOperator.setParameter("measure_type", "NumericalMeasures");
// silimarityOperator.setParameter("numerical_measure", "CosineSimilarity");
Process process = new Process();
process.getRootOperator().getSubprocess(0).addOperator(silimarityOperator);
process.getRootOperator().getSubprocess(0).getInnerSources().getPortByIndex(0).connectTo( silimarityOperator.getInputPorts().getPortByName("input"));
// run the process with new IOContainer using the created exampleSet
IOContainer run = process.run(new IOContainer(exampleset));
System.out.println(run.toString());
}
public ExampleSet getExampleset() {
// construct attribute set
Attribute[] attributes = new Attribute[3];
attributes[0] = AttributeFactory.createAttribute("Topic1", Ontology.STRING);
attributes[1] = AttributeFactory.createAttribute("Topic2", Ontology.STRING);
attributes[2] = AttributeFactory.createAttribute("Topic3", Ontology.STRING);
MemoryExampleTable table = new MemoryExampleTable(attributes);
DataRowFactory ROW_FACTORY = new DataRowFactory(0);
Double[] strings = new Double[3];
double a = 0;
for (int i = 0; i < 3; i++) {
a++;
strings[i] = a;
// make and add row
DataRow row = ROW_FACTORY.create(strings, attributes);
table.addDataRow(row);
}
ExampleSet exampleSet = table.createExampleSet();
return exampleSet;
}
}
我找到了解决办法。我在接线员的连接上有错误。它不存在端口输入,因此我得到端口0
process.getRootOperator().getSubprocess(0).getInnerSources().getPortByIndex(0).connectTo(
silimarityOperator.getInputPorts().getPortByIndex(0));
silimarityOperator.getOutputPorts().getPortByIndex(0).connectTo(
process.getRootOperator().getSubprocess(0).getInnerSinks().getPortByIndex(0));