Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Does weka preprocess numeric attributes like speed (meter per second) before the classification?
I want to use the weka toolkit to classify numeric speed and step data . In the related work weka is often used and it is mentioned that the authors of the related work have used mean, standard deviation, max and mean for classification. Does weka do that preprocessing automatically or do I have to do it before classification?
Weka doesn’t automatically do that, but it does have filters for it. With the AddExpression filter, you can compute the mean, standard deviation, max and mean of a number of attributes, just as you described.