Hello,

I was stepping through Taste and noticed that users with 1.0 similarity to the 
target user end up in that user's neighbourhood.  1.0 similarity between users 
means users are exactly the same, so is there a point in collecting them?  
Since they are exactly the same as the target user, we can't really get any new 
items to recommend from them.  Is this correct?


It's probably not a frequent case to have users with identical item 
preferences, but imagine a case where you are computing recommendations from 
top 10 most similar users and those 10 most similar users happen to be all 
perfectly similar users, thus yielding no recommendations.

Thoughts?

Otis
--
Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch

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