Argh....
loglikelihood should approach the percentage of INcorrect answers
(negated).
On Tue, May 31, 2011 at 7:49 AM, Xiaobo Gu <guxiaobo1982@gmail.com> wrote:
> Page 228 of version 7 of Mahout in Action says :
>
> Loglikelihood has a maximum value of zero and no bound on how far
> negative it can go. For highly accurate classifiers, the value of
> average loglikelihood should be close to the average percent correct
> for the classifier times the number of target categories.
>
> Average percent correct times the number of target categories is more
> than 0, while Loglikelihood is always less than 0, then is the above
> statement correct ?
>
>
>
> On Tue, May 31, 2011 at 10:45 PM, Xiaobo Gu <guxiaobo1982@gmail.com>
> wrote:
> > Does it mean the percent of records that the model has correctlly
> > predicted the target on the validate protion of the data set, then it
> > should be between 0 and 1, and the bigger the better performance of
> > the model ?
> >
> > Regards,
> >
> > Xiaobo Gu
> >
>
