Package elki.index

Interface RKNNIndex<O>

Type Parameters:

O - Database Object type

All Superinterfaces:

Index

All Known Implementing Classes:

LatLngAsECEFIndex, LngLatAsECEFIndex, MaterializeKNNAndRKNNPreprocessor, MkAppTreeIndex, MkCoPTreeIndex, MkMaxTreeIndex, MkTabTreeIndex, ProjectedIndex, RdKNNTree

public interface RKNNIndex<O>
extends Index

Index with support for kNN queries.

Since:

0.4.0

Author:

Erich Schubert

Method Summary

Modifier and Type	Method	Description
RKNNSearcher<DBIDRef>	rkNNByDBID(DistanceQuery<O> distanceQuery, int maxk, int flags)	Get a RKNN query object for the given distance query and k.
RKNNSearcher<O>	rkNNByObject(DistanceQuery<O> distanceQuery, int maxk, int flags)	Get a RKNN query object for the given distance query and k.

Methods inherited from interface elki.index.Index

initialize, logStatistics

Method Detail

rkNNByObject

RKNNSearcher<O> rkNNByObject(DistanceQuery<O> distanceQuery,
                             int maxk,
                             int flags)

Get a RKNN query object for the given distance query and k.

This function MAY return null, when the given distance is not supported!

Parameters:

distanceQuery - Distance query

maxk - Maximum k for RkNN query

flags - Hints for the optimizer

Returns:

RKNN Query object or null

rkNNByDBID

RKNNSearcher<DBIDRef> rkNNByDBID(DistanceQuery<O> distanceQuery,
                                 int maxk,
                                 int flags)

Get a RKNN query object for the given distance query and k.

This function MAY return null, when the given distance is not supported!

Parameters:

distanceQuery - Distance query

maxk - Maximum k for RkNN query

flags - Hints for the optimizer

Returns:

RKNN Query object or null