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Re: Fastest Nearest Neighbor Calculation [message #47230]

Sun, 29 January 2006 11:47

peter.albert@gmx.de is currently offline

peter.albert@gmx.de
Messages: 108
Registered: July 2005

Senior Member

Hi M,

yiu'll find two possibly useful links in an older discussion on this
group at

http://tinyurl.com/8dw8u

There is first David's Tip on
http://www.dfanning.com/code_tips/slowloops.html which is about finding
the n-th closest star to each of the others. Combine this with a check
for your threshold and you are there. Probably :-)

Then JD gave a link to http://www.cs.umd.edu/~mount/ANN/ which he said
is a C++ library for exact and approximate nearest neighbor
computation. I haven't had a look, but if you are not bound to use only
IDL, it might be worth looking.

Cheers,

Peter

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