Thanks for quick reply and suggestions. So Is there any measure to test whether SVD is performing on data or not?
I read following lines from you book mahout in action --- In the case of Boolean preference data, only a precision-recall test is available anyway. It’s worth understanding the test’s limitations in this context. --- Is it true now also (with new version of mahout)? Regards, Ashish On Fri, Dec 14, 2012 at 3:55 PM, Sean Owen <[email protected]> wrote: > The "1.0" last parameter to evaluate() can be turned down to, say, 0.1 > to use only 10% of the data for testing. > > Precision/recall tests are always problematic for recommenders. I > don't think this is going to give good results, but you're doing it > right. >
