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6 votes
1 answer
3k views

How to make k-means distributed?

After setting up a 2-noded Hadoop cluster, understanding Hadoop and Python and based on this naive implementation, I ended up with this code: ...
gsamaras's user avatar
  • 291
23 votes
3 answers
9k views

Nearest neighbors search for very high dimensional data

I have a big sparse matrix of users and items they like (in the order of 1M users and 100K items, with a very low level of sparsity). I'm exploring ways in which I could perform kNN search on it. ...
cjauvin's user avatar
  • 451