Hi Mahout,
In Naive Bayes, I think that a term does not exist in a training data
should not affect a score.
What do you think?
org.apache.mahout.classifier.
naivebayes.AbstractNaiveBayesClassifier
Before:
protected double getScoreForLabelInstance(int label, Vector instance) {
double
Hi Toyoharu,
Mahout Naive Bayes uses Laplace smoothing (the alpha_I parameter with
default=1) to deal with terms unseen by the training set. See Rennie et al.
sec. 2.3 [1].
Your modification will certainly work, and may in fact give better results for
the problem that your working on.
Hi Andy,
Thanks for your response. I must read those documents.
There are lots of things I have to learn about Naive Bayes.
Toyoharu
2014-06-22 6:15 GMT+09:00 Andrew Palumbo ap@outlook.com:
Hi Toyoharu,
Mahout Naive Bayes uses Laplace smoothing (the alpha_I parameter with
default=1)
