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From Sam Cunningham <sam_cun...@yahoo.com>
Subject NaN - classification results (cbayes)
Date Mon, 31 Oct 2011 20:22:49 GMT
Using ClassifierDemo class provided below 

https://bitbucket.org/jaganadhg/blog/src/tip/bck9/java/src/org/bc/kl/ClassifierDemo.java 

I tested the 20news test data with the trained model. It worked fine.
However, when I ran the same class (ClassifierDemo) against my own test
dataset with my own trained model, I received the following messages. It
basically is returning NaN per potential class. And the final label it is
assigning the test dataset to is always the same label: "Health", which is
the default category, I think. Why is it doing this? I am pretty sure I
trained it and generated the model correctly. 

Oct 31, 2011 2:00:09 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Read 50000 feature weights
Oct 31, 2011 2:00:09 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Read 100000 feature weights
Oct 31, 2011 2:00:09 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Read 150000 feature weights
Oct 31, 2011 2:00:09 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: 0.0
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Health NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: SciTech NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: General NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Entertainment NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Politics NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Sports NaN NaN NaN
Oct 31, 2011 2:00:11 PM org.slf4j.impl.JCLLoggerAdapter info
INFO: Business NaN NaN NaN
Label: Health Score: 988.1363714476455

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