mahout-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jeremy Lewi <jer...@lewi.us>
Subject Re: Understanding log-likelihood
Date Mon, 09 May 2011 00:58:43 GMT
I figured it was probably more mahout specific and not general stats.

J
On Sun, 2011-05-08 at 17:46 -0700, Ted Dunning wrote:
> My guess is that the OP was asking about the generalized log-likelihood
> ratio test used in the Mahout recommendation framework.
> 
> That is a bit different from what you describe in that it is the log of the
> ratio of two maximum likelihoods.
> 
> See http://en.wikipedia.org/wiki/G-test for a definition of the test used in
> Mahout.
> 
> On Sun, May 8, 2011 at 5:43 PM, Jeremy Lewi <jeremy@lewi.us> wrote:
> 
> > Thomas,
> >
> > Are you asking a general question about log-likelihood or a specific
> > implementation usage in Mahout?
> >
> > In general the likelihood is just a number, between 0 and 1 which
> > measures the probability of observing some data under some distribution.
> >
> >


Mime
View raw message