https://community.intel.com/t5/Intel-Integrated-Performance/Fast-nearest-neighbor-computation/m-p/990379#M22224 Others may have better suggestions, but in general IPP is a signal processing (1D) and image processing (2D) library. For example, IPP has a nearest neighbor image resize algorithm which simply fills each point in the destination image with the single value at the "nearest" 2D coordinate in the source image. A quick google search shows the 'ANN' library for nearest neighbor search with high dimensionality. I have not used it, but is this the kind of functionality you're looking for? Sat, 08 Sep 2012 01:16:40 GMT Jeffrey_M_Intel1 2012-09-08T01:16:40Z https://community.intel.com/t5/Intel-Integrated-Performance/Fast-nearest-neighbor-computation/m-p/990378#M22223 <P>Dear All,</P> <P>I am looking for good c++ libraries for fast computation of the nearest neighbor on relatevly large dataset (100000 entries) and relatively high dimension (10-20 dimensions). The number of queries will be as large as the point dataset.</P> <P>Do anyone know if such libraries are included in&nbsp;the IPP?</P> <P>If not, may anyone redirect me to good libraries?</P> <P></P> <P>I thank you for your kind assistance.</P> <P>My best regards, TRD</P> <P></P> <P>P.S. As I am new in this forum, I am not sure this question fits with this subsection. In that case, I would kindly ask to be redirected to the good place.</P> <P></P> Fri, 07 Sep 2012 09:32:06 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Fast-nearest-neighbor-computation/m-p/990378#M22223 Giuseppe_P_1 2012-09-07T09:32:06Z https://community.intel.com/t5/Intel-Integrated-Performance/Fast-nearest-neighbor-computation/m-p/990379#M22224 Others may have better suggestions, but in general IPP is a signal processing (1D) and image processing (2D) library. For example, IPP has a nearest neighbor image resize algorithm which simply fills each point in the destination image with the single value at the "nearest" 2D coordinate in the source image. A quick google search shows the 'ANN' library for nearest neighbor search with high dimensionality. I have not used it, but is this the kind of functionality you're looking for? Sat, 08 Sep 2012 01:16:40 GMT https://community.intel.com/t5/Intel-Integrated-Performance/Fast-nearest-neighbor-computation/m-p/990379#M22224 Jeffrey_M_Intel1 2012-09-08T01:16:40Z