how is "People who liked it also liked" calculated


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I recently added a review for a netgear WG111T wireless adapter.

http://www.productwiki.com/netgear-wg111t/

It's not very good :P  But in the section "People who liked this, also liked" it lists a bunch of other products I reviewed.

 

I'm just curious how this calculated.  How does it know that I 'like' this product (which I don't :P...i just tagged it as 'have it'?

 

Y

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It's done by tagging.

The algorithm finds the highest overlap between products that have been tapped as "have" or "love" with the current one you're on.

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ah coolio.

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I've noticed that sometimes something I've never tagged shows up in it, and sometimes the product itself does. When I was adding the foxconn blackops, the blackops showed up in that field.

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