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License: Apache License 2.0
Nearest neighbor search algorithms including a ball tree and a vantage point tree.
License: Apache License 2.0
query*
functions such as BallTree::query_nearest
takes a slice as a point, assuming coordinates are stored contiguously. However, often those points are stored in an ndarray, and it may have a large stride between elements. It would make this crate more flexible if passing an ndarray as a point is allowed.
A vantage-point tree would allow nearest neighbor search without requiring multidimensional points.
This will never prune:
petal-neighbors/src/ball_tree.rs
Line 205 in aca8a78
as radius
is always A::infinity()
.
Dear ball tree/kd tree team,
I think ball tree can be efficiently parallelized right according to this paper: https://www.nazneenrajani.com/hpgm.pdf
We can rely on rayon package?
Thanks,
Jianshu
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