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From Abhishek Roy <>
Subject Re: Custom Item Similarity :datamodel not sure
Date Thu, 27 Sep 2012 18:50:00 GMT

Thanks Sean. I get your point. Will try incorporating that. 
Earlier, as I mentioned, for a small item count(<5000), the input(datamodel) to 
the recommender was nC2 item-item pairs(tried to feed uniform preference for 
each item to every other item), without the rating field, and then called 
recommender.mostSimilarItems() to get the list. nC2 works, but is not scalable. 
It worked well as the recommendations were the similar items(that works for me 
 Although am digging through the code to see what least input I can give, any 
meaningful suggestion for data input would be awesome. 

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