Re: unknown test data twenty-newsgroups example

Yes.  Instance = training example.

Your method of duplicating lines is just what Robin meant.

On Fri, Oct 1, 2010 at 3:55 AM, Robin Anil <robin.anil <at> gmail.com> wrote:

> > Let me list what I understood. Pl confirm if I got it correct?
> >
> > Add duplicate extra lines many times in an extra file (conforming to the
> > format required by the Bayes Classifier) in the format
> > <class-name1><tab><word1> <word2>
> > If I want to increase the weight of word1 and word2, so that text with
> > those words have higher chance of getting classified as <class-name1>
> >
> > *
> > *
> >
> No. Duplicating lines increases DF and therefore decreases (IDF == inverse
> document frequency) So weight goes down. To increase weight of the word
> repeat the word in the same line
>
>
> Regards
> Robin
>