Hi Gianmarco, I will see! Thank very much for your reply!
Best regards, Eduardo. 2016-02-07 11:30 GMT-02:00 Gianmarco De Francisci Morales <[email protected]>: > Hi Eduardo, > > We actually already do something like that to compute the final statistics. > Have a look at the code of the classification evaluator. > > https://github.com/apache/incubator-samoa/blob/master/samoa-api/src/main/java/org/apache/samoa/evaluation/BasicClassificationPerformanceEvaluator.java > > Cheers, > > -- Gianmarco > > On Thu, Feb 4, 2016 at 7:38 PM, Eduardo Costa <[email protected]> > wrote: > > > Hi Nicolas, thanks for fast reply! > > > > I want to test my model against every instance that comes in and store > the > > prediction result for every instance e.g: > > > > inst#, actual, predicted, error > > 1 2:no 1:yes + > > 2 2:no 1:yes + > > 3 1:yes 1:yes > > 4 1:yes 1:yes > > 5 1:yes 1:yes > > > > Because I'm trying to build a rudimentary system for the detection of > > anomalies using SAMOA to classify instances in anomaly or normal and I > need > > these information to calculate the false positives, false negatives and > > correlate with other information. > > > > Best regards, > > Eduardo. > > > > 2016-02-04 6:47 GMT-02:00 Nicolas Kourtellis <[email protected]>: > > > > > Hi Eduardo, > > > > > > Welcome and thanks for trying out SAMOA! > > > > > > I am not sure what you mean by "each instance". > > > > > > You want to test your model against every instance that comes in? > > > And for that you want to output the prediction of this test? > > > > > > Or you want to test your model at some regular intervals (e.g., every > > > 100k instances) and output the prediction of this test every time? > > > > > > The parameter -f should allow you to adjust how frequently you test > your > > > current model. However, I wouldn't set it for every instance! > > > Thats probably an overkill. > > > > > > Regarding the output of the prediction, you should be able to define > > > a .csv output file of the prediction performance using the parameter -d > > > in the PrequentialEvaluation. > > > > > > Hope this helps! > > > > > > Nicolas > > > > > > > > > > > > > > > > > > On Thu, Feb 4, 2016 at 1:42 AM, Eduardo Costa <[email protected]> > > > wrote: > > > > > > > I'm begining to use SAMOA and I' d like to store in a file or mysql > > the > > > > prediction for each instance when I use this command: bin/samoa storm > > > > target/SAMOA-Storm-0.4.0-incubating-SNAPSHOT.jar > "PrequentialEvaluation > > > -l > > > > (classifiers.ensemble.AdaptiveBagging -s 2) -s > > > > (org.apache.samoa.moa.streams.ArffFileStream -f covtypeNorm.arff) -f > > > 100000 > > > > -n ARFF-teste5" > > > > , but I don't know what I must to do. Could you help-me? > > > > Cheers, > > > > Eduardo. > > > > > > > > > > > > > > > > -- > > > Nicolas Kourtellis > > > > > >
