CODEWITHSUNDEEP
machine-learningclassificationweka
user93871
user93871

Reputation: 21

Attribute ranking in weka ends up 0 for all attributes

I am classifying 755 classes with 1024 attributes in weka. I suppose I need to select best attributes for better accuracy. I tried to select attributes using InfoGainAttributeEval and Ranker method but all the attributes ranked as '0'. I am not sure what is wrong. Any help is appreciated.

weka

Upvotes: 2

Views: 908

Answers (1)

KevinD
KevinD

Reputation: 731

The "0" here is not the ranking of each attribute, but the InfoGain of each attribute.

When you apply InfoGainAttributeEval on Weka, the 3 columns corresponds to : Information Gain | "id" of the attribute | name of the attribute.

What happened here might be that the information gain was too small and has been rounded.

But again, as stated by @CAFEBABE in the comments, without having your data it is hardly possible to be sure.

Edit : A post here indicates that the precision of the output is set to four decimal places, which seems to confirm the above hypothesis.

Upvotes: 2

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