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From Fernando Fernández <>
Subject Matrix to Matrix Distance
Date Thu, 09 Dec 2010 17:42:07 GMT
Hi everyone,

I'm facing a problem where I should compute, not the pair-wise distances of
the rows of a matrix, but the distances of each row of an small matrix (A
~1000 rows) to all the rows of a big matrix (B ~100000 rows), to determine
the nearest elements of B for each row of A. Is there an easy way to do this
in Mahout? (besides putting rows of A and B into a big matrix (C) and
launching a rowsimilarityjob, which would be very inefficient).

Thanks in advance.


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