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Questions tagged [nearest-neighbors]

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13 votes
5 answers
1k views

Repeated nearest neighbor calculation for millions of data points too slow

I have a dataset running into millions of data points in 3D. For the calculation I am doing, I need to calculate neighbor (range search) to each data point in a radius, try to fit a function, ...
Kaustubh Kaluskar's user avatar
3 votes
1 answer
3k views

Fast nearest neighbor search, Latitude Longitude

Is there a fast nearest neighbor search algorithm that generates the nearest neighbors, not based on Euclidean distances but based on geographic distances over a set of latitudes/longitudes. The fast ...
hearse's user avatar
  • 259
2 votes
2 answers
701 views

Effective way to build the neighbor's list in MD

I'm trying to implement the following form of the cell/neighbor list method in my MD code. I have divided my simulation box into a fixed number of cells, and according to its positions, I have ...
Ptheguy's user avatar
  • 187