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Problem with generating ROC Curves for Anomaly Detection extension.

I am trying the Generate ROC operator after running different k-nn algorithms in the Anomaly Detection extension. However, I am getting a error message telling me " not found in labels. All worked fine when I was just using the k-nn algorithms. But when I added the "Generate ROC" operator in series after the k-nn, I got the error message. I am a newbie running RapidMiner 5.3.013. Is it how to generate the ROC curve? Also, how do I add different k-nn algorithms output to generate different ROC curves for each algorithm on the same graph to compare them. Many thanks!

Frank

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beyza_kizilkaya

Hi;

Did you get any answer about this problem? Because operator didn't work any time when I tried. Actually I couldn't find any document or video.

Thanks for your response.

liming

Hi,
Did you get the answer? I want to use the anomaly detection extension in RapidMiner and get the ROC curve for different algorithms? I would be grateful if you could solve my problem.

Telcontar120

Can you post an xml with your process and a description of the specific error you face? The OP is from a version of RapidMiner that is 5 years old! I am not experiencing any problems with the Performance operator and generating the ROC curve, but to do so you need to formulate your problem as supervised machine learning, i.e., you need a label for it to compute performance. If you are simply using the outlier classification unsupervised approach then the ROC curve would be undefined in such a case.

liming

Hi
My dataset is pen-global-unsupervised-ad3.csv. And my process XML is test2.xml. I want to get a ROC curve.

pen-global-unsupervised-ad3.csv

test2.xml