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From Sean Owen <>
Subject Re: problems with taste.
Date Wed, 15 Jul 2009 12:52:43 GMT
I have them now. Yes, again Thomas's analysis is correct about why
there are no recommendations from the .txt file. See the previous
messages about what to do.

The other data file has a different issue. All the ratings are the
same. Correlation-based similarity metrics will not work as they
cannot define a similarity in such a case (correlation is undefined).
It will be unable to give recommendations as a result. You need to try
a different metric like TanimotoCoefficientSimilarity.

If that works well, there is a way to make this a lot faster. We can
discuss it next.

On Wed, Jul 15, 2009 at 1:48 PM, Laya Patwa<> wrote:
> There is a problem in the mailing system I guess. I am sending 1 file in 1
> mail. This has the code file.
> On Wed, Jul 15, 2009 at 2:15 PM, Sean Owen <> wrote:
>> There is still only one text file attached. But anyway I believe Thomas
>> has
>> identified the problem.
>> On Jul 15, 2009 1:03 PM, "Laya Patwa" <> wrote:
>> You did not get the code? But I sent it. Anyways please find 3 files
>> attached with this mail containing the code and the 2 data files.
>> My apologies for the mistake.
>> On Wed, Jul 15, 2009 at 1:57 PM, Sean Owen <> wrote: > >
>> Thomas is right, you have...

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