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From Ted Dunning <>
Subject Re: Preference Value
Date Sun, 27 Dec 2009 19:59:48 GMT
If your users rate items, then preference value should be the rating that
they give the item.  If you are using an implicit observation such as
clicking or viewing, then you should use 1 for the preference value.

On Sun, Dec 27, 2009 at 9:44 AM, F.Ozgur Catak <>wrote:

> When we prepare our data, we need 3 information. User Id, Item ID and Pref
> Value. Why we use Pref Value. What does it mean? When we use similarity,
> does it need to be used?

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