On 03/10/2013 08:14 PM, Luke Pebody wrote:
To each given point?

To one given point, you just calculate each of the distances and sort them.


On Sun, Mar 10, 2013 at 11:42 AM, Registered user <[email protected] <mailto:[email protected]>> wrote:

    Problem statement :
    Given N points of 2d Plane . you are required to find the k nearest
    point to a given point.

    After some search i came to know that i need to implement KD tree ,
    but cannot understand how ??
    Note: Efficient algorithm required , not Brute force .
    so if anyone can help me plz ..

    Thanks in advance :D

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DBScan is popular data mining(specifically: clustering) algorithm.
Requires distance query: no. of points around a point within k-distant.

RTree is good for multi-dimensional data indexing and distance query.
Look for implementations of r-tree, variations of it r*, hilbert r-tree, etc.


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Regards,
Amit Gangrade

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