Package elki.index.tree.spatial.rstarvariants.strategies.insert

Class LeastOverlapInsertionStrategy

java.lang.Object

elki.index.tree.spatial.rstarvariants.strategies.insert.LeastOverlapInsertionStrategy

All Implemented Interfaces:

InsertionStrategy

Direct Known Subclasses:

ApproximativeLeastOverlapInsertionStrategy

@Reference(authors="Norbert Beckmann, Hans-Peter Kriegel, Ralf Schneider, Bernhard Seeger",
           title="The R*-tree: an efficient and robust access method for points and rectangles",
           booktitle="Proc. 1990 ACM SIGMOD Int. Conf. Management of Data",
           url="https://doi.org/10.1145/93597.98741",
           bibkey="DBLP:conf/sigmod/BeckmannKSS90")
public class LeastOverlapInsertionStrategy
extends java.lang.Object
implements InsertionStrategy

The choose subtree method proposed by the R*-Tree for leaf nodes.

Reference:

Norbert Beckmann, Hans-Peter Kriegel, Ralf Schneider, Bernhard Seeger
The R*-tree: an efficient and robust access method for points and rectangles
Proc. 1990 ACM SIGMOD Int. Conf. Management of Data

Since:

0.5.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LeastOverlapInsertionStrategy.Par	Parameterization class.

Field Summary

Fields

Modifier and Type	Field	Description
static LeastOverlapInsertionStrategy	STATIC	Static instance.

Constructor Summary

Constructors

Constructor	Description
LeastOverlapInsertionStrategy()	Constructor.

Method Summary

Modifier and Type	Method	Description
<A> int	choose(A options, ArrayAdapter<? extends SpatialComparable,A> getter, SpatialComparable obj, int height, int depth)	Choose insertion rectangle.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

STATIC

public static final LeastOverlapInsertionStrategy STATIC

Static instance.

Constructor Detail

LeastOverlapInsertionStrategy

public LeastOverlapInsertionStrategy()

Constructor.

Method Detail

choose

public <A> int choose(A options,
                      ArrayAdapter<? extends SpatialComparable,A> getter,
                      SpatialComparable obj,
                      int height,
                      int depth)

Description copied from interface: InsertionStrategy

Choose insertion rectangle.

Specified by:

choose in interface InsertionStrategy

Parameters:

options - Options to choose from

getter - Array adapter for options

obj - Insertion object

height - Tree height

depth - Insertion depth (depth == height - 1 indicates leaf level)

Returns:

Subtree index in array.