Nearest neighbor search (NNS), also known as proximity search, similarity search or closest point search, is an optimization problem for finding closest points in metric spaces.
ANN - Approximate Nearest Neighbor Searching contain C++ code (under GNU) Roger Jang provide Matlab code for both Fuzzy Nearest Neighbor and K nearest neighbor Analytic 1305 is using cloud to implement Nearest Neighbor (free for academic use) ...
See also: Dimensionality, Classification, Pattern recognition, Machine learning, Curse of dimensionality
 
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