Neighbors Ball Cover

Source header: cuvs/neighbors/ball_cover.hpp

Types

Stores raw index data points, sampled landmarks, the 1-nns of index points

to their closest landmarks, and the ball radii of each landmark. This class is intended to be constructed once and reused across subsequent queries.

1 template <typename idx_t, typename value_t>
2 struct index : cuvs::neighbors::index { ... };

Fields

Name	Type	Description
`handle`	`raft::resources const&`
`m`	`int64_t`
`n`	`int64_t`
`n_landmarks`	`int64_t`
`X`	`raft::device_matrix_view<const float, idx_t, raft::row_major>`
`metric`	`cuvs::distance::DistanceType`

Builds and populates a previously unbuilt cuvs::neighbors::ball_cover::index

1 void build(raft::resources const& handle, index<int64_t, float>& index);

Usage example:

cuvs::neighbors::ball_cover::index

Parameters

Name	Direction	Type	Description
`handle`	in	`raft::resources const&`	library resource management handle
`index`	inout	`index<int64_t, float>&`	an empty (and not previous built) instance of

Returns

void