PMML evaluate on Windows

[Craig Bruce-3]

Hi,

 

I've been testing the supplied Iris PMML models (MLR/MLP) from MailScanner has detected a possible fraud attempt from "60.234.220.81:8080" claiming to be MailScanner warning: numerical links are often malicious: http://60.234.220.81:8080/pmml/ programmatically. I can successfully load the model and data. However when I use Windows I get this error:

Exception in thread "main" java.lang.NoSuchMethodError: weka.classifiers.Evaluation.evaluateModel(Lweka/classifiers/Classifier;Lweka/core/Instances;[Ljava/lang/Object;)[D

at PMML.main(PMML.java:32)

I've tried using weka 3.6.0 and both current snapshots (dev & stable) on WinXP. The same code and files run fine on Mac OS X 10.4, although the GUI does briefly load.

 

What can I do to get this to work on Windows?

 

Cheers

Craig

 

 

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import java.io.File;

import weka.classifiers.Evaluation;
import weka.classifiers.pmml.consumer.PMMLClassifier;
import weka.core.Instances;
import weka.core.converters.CSVLoader;
import weka.core.pmml.PMMLFactory;
import weka.core.pmml.PMMLModel;

public class PMML {

        public static void main(String[] args) throws Exception {
                // Load model
                PMMLModel model = PMMLFactory
                                .getPMMLModel("C:\\Documents and Settings\\craigb\\Desktop\\Iris_MLR.xml");
                System.out.println(model);

                // Load data
                CSVLoader loader = new CSVLoader();
                loader.setSource(new File(
                                "C:\\Documents and Settings\\craigb\\Desktop\\iris.csv"));

                Instances data;
                data = loader.getDataSet();
                data.setClassIndex(data.numAttributes() - 1);

                // Evaluate model
                if (model instanceof PMMLClassifier) {
                        PMMLClassifier mlr = (PMMLClassifier) model;

                        Evaluation eval = new Evaluation(data);
                        eval.evaluateModel(mlr, data);
                        System.out.println(eval.toSummaryString("Model", false));
                }
        }

}

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[Mark Hall-9]

Hi Craig,

I have 3.6.0 installed under Windows XP and your program worked fine  
for me on the IRIS_MLP and Iris_MLR files. Have you checked your  
CLASSPATH in case there is an older version of Weka in there? I  
changed your program to accept the model file from arg[0] and the csv  
file from arg[1] and ran it with:

java -cp "C:\Program Files\Weka-3-6\weka.jar";. Iris_MLR.xml iris.csv

Cheers,
Mark.

On 22/01/2009, at 12:49 AM, Bruce Craig wrote:

> Hi,
>
> I've been testing the supplied Iris PMML models (MLR/MLP) from  
> MailScanner has detected a possible fraud attempt from  
> "60.234.220.81:8080" claiming to be MailScanner warning: numerical  
> links are often malicious: http://60.234.220.81:8080/pmml/ 
> programmatically. I can successfully load the model and data.  
> However when I use Windows I get this error:
> Exception in thread "main" java.lang.NoSuchMethodError:  
> weka.classifiers.Evaluation.evaluateModel(Lweka/classifiers/
> Classifier;Lweka/core/Instances;[Ljava/lang/Object;)[D
> at PMML.main(PMML.java:32)
>
> I've tried using weka 3.6.0 and both current snapshots (dev &  
> stable) on WinXP. The same code and files run fine on Mac OS X  
> 10.4, although the GUI does briefly load.
>
> What can I do to get this to work on Windows?
>
> Cheers
> Craig
>
>
>
> This message has been checked for viruses but the contents of an  
> attachment may still contain software viruses, which could damage  
> your computer system: you are advised to perform your own checks.  
> Email communications with the University of Nottingham may be  
> monitored as permitted by UK legislation.
>
> <PMML.java>
> _______________________________________________
> Wekalist mailing list
> Wekalist@...
> https://list.scms.waikato.ac.nz/mailman/listinfo/wekalist

--
Mark Hall
Senior Developer/Consultant, Pentaho Open Source Business Intelligence
Citadel International, Suite 340, 5950 Hazeltine National Dr.,
Orlando, FL 32822, USA
[phone] office, [phone] mobile, [phone] fax,
Skype: mark.andrew.hall, Yahoo: mark_andrew_hall
Download the latest release today <http://www.sourceforge.net/ 
projects/pentaho>




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[Craig Bruce-3]

> java -cp "C:\Program Files\Weka-3-6\weka.jar";. Iris_MLR.xml iris.csv

Turns out my classpath was the problem, I had another program (non-Weka), once that was removed it ran fine. Somewhat strange, but glad it works now.

 

Cheers

Craig

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