echonest/echoprint-codegen — pull request #38 by adrianomitre (2012-04-13 07:37:16+00:00)
Title: conditional to skip wasteful (possibly harmful) FPCodes with no IOI data

I added a conditional to skip wasteful and redundant FPCodes with no IOI data (i.e., dt0=dt1=0). In addition to waste disk space and some processing, these "null-codes" can in fact hurt accuracy, given that they will be contained and thus matched by practically every song, reducing discriminability.