net.obsearch.dimension
Class DimensionInt

java.lang.Object
  net.obsearch.dimension.AbstractDimension
      net.obsearch.dimension.DimensionInt

All Implemented Interfaces:

Comparable<DimensionInt>

public class DimensionInt
extends AbstractDimension
implements Comparable<DimensionInt>

DimensionInt Stores objects of type int.

Author:

Arnoldo Jose Muller Molina

Constructor Summary

DimensionInt(int position, int value)
Creates a new DimensionInt object.

Method Summary

int	compareTo(DimensionInt other) Compares this object with other.
static int	euclidean(int[] a, int[] b) Calculates the euc distance for two tuples
static int[]	getBasicTuple(OBInt[] pivots, OBInt object) Creates a int array from the given pivots and the given object.
static int[]	getPrimitiveTuple(long[] pivots, long objectId, Index<? extends OBInt> index) Calculates the smap tuple for the given objectId, and the given pivots
static int[]	getPrimitiveTuple(OBInt[] pivots, OBInt object) Calculates the smap tuple for the given objectId, and the given pivots
static DimensionInt[]	getTuple(long[] pivots, long objectId, Index<? extends OBInt> index) Creates a dimension array from the given pivots and the given object id.
static DimensionInt[]	getTuple(OBInt[] pivots, OBInt object) Creates a dimension array from the given pivots and the given object.
int	getValue()
static int	lInfinite(int[] a, int[] b) Calculates L-inf for two int tuples.
static int	minDistance(List<Long> objects, Index<OBInt> index) Calculate the minimum distance of the given objects (all objects compared against all objects)
static long[]	select(int k, Random r, cern.colt.list.LongArrayList source, Index<OBInt> index, cern.colt.list.LongArrayList excludes, int minDistance) Selects k random elements from the given source.
static DimensionInt[]	transformPrimitiveTuple(int[] tuple) Transform the given primitive tuple into a Dimension tuple.

Methods inherited from class net.obsearch.dimension.AbstractDimension

getOrder, mapId, max, select

Methods inherited from class java.lang.Object

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

Constructor Detail

DimensionInt

public DimensionInt(int position,
                    int value)

Creates a new DimensionInt object.

Parameters:

position - The position of this dimension.

value - The value of this dimension.

Method Detail

getTuple

public static DimensionInt[] getTuple(OBInt[] pivots,
                                      OBInt object)
                               throws IllegalIdException,
                                      IllegalAccessException,
                                      InstantiationException,
                                      OBException

Creates a dimension array from the given pivots and the given object.

Parameters:

pivots - The pivots used for the embedding.

object - The object to be projected.

Returns:

A new dimension array.

Throws:

IllegalIdException

IllegalAccessException

InstantiationException

OBException

select

public static long[] select(int k,
                            Random r,
                            cern.colt.list.LongArrayList source,
                            Index<OBInt> index,
                            cern.colt.list.LongArrayList excludes,
                            int minDistance)
                     throws IllegalIdException,
                            OBException,
                            IllegalAccessException,
                            InstantiationException

Selects k random elements from the given source.

Parameters:

k - number of elements to select

r - Random object used to randomly select objects.

source - The source of item ids.

index - underlying index.

will - not add pivots included in excludes.

minDistance - The min distance required by the objects.

Returns:

The ids of selected objects.

Throws:

IllegalIdException

OBException

IllegalAccessException

InstantiationException

minDistance

public static int minDistance(List<Long> objects,
                              Index<OBInt> index)
                       throws IllegalIdException,
                              OBException,
                              IllegalAccessException,
                              InstantiationException

Calculate the minimum distance of the given objects (all objects compared against all objects)

Parameters:

objects -

Returns:

the min distance

Throws:

IllegalIdException

OBException

IllegalAccessException

InstantiationException

getBasicTuple

public static int[] getBasicTuple(OBInt[] pivots,
                                  OBInt object)
                           throws IllegalIdException,
                                  IllegalAccessException,
                                  InstantiationException,
                                  OBException

Creates a int array from the given pivots and the given object.

Parameters:

pivots - The pivots used for the embedding.

object - The object to be projected.

Returns:

A new int array.

Throws:

IllegalIdException

IllegalAccessException

InstantiationException

OBException

getTuple

public static DimensionInt[] getTuple(long[] pivots,
                                      long objectId,
                                      Index<? extends OBInt> index)
                               throws IllegalIdException,
                                      IllegalAccessException,
                                      InstantiationException,
                                      OBException

Creates a dimension array from the given pivots and the given object id. Loads the objects from the DB.

Throws:

IllegalIdException

IllegalAccessException

InstantiationException

OBException

compareTo

public int compareTo(DimensionInt other)

Compares this object with other.

Specified by:

compareTo in interface Comparable<DimensionInt>

getValue

public int getValue()

getPrimitiveTuple

public static int[] getPrimitiveTuple(long[] pivots,
                                      long objectId,
                                      Index<? extends OBInt> index)
                               throws IllegalIdException,
                                      IllegalAccessException,
                                      InstantiationException,
                                      OBException

Calculates the smap tuple for the given objectId, and the given pivots

Parameters:

pivots -

objectId -

Returns:

Throws:

IllegalIdException

IllegalAccessException

InstantiationException

OBException

transformPrimitiveTuple

public static DimensionInt[] transformPrimitiveTuple(int[] tuple)

Transform the given primitive tuple into a Dimension tuple.

Parameters:

tuple - The tuple that will be transformed.

Returns:

A DimensionInt of dimensions.

getPrimitiveTuple

public static int[] getPrimitiveTuple(OBInt[] pivots,
                                      OBInt object)
                               throws IllegalIdException,
                                      IllegalAccessException,
                                      InstantiationException,
                                      OBException

Calculates the smap tuple for the given objectId, and the given pivots

Parameters:

pivots -

objectId -

Returns:

Throws:

IllegalIdException

IllegalAccessException

InstantiationException

OBException

lInfinite

public static int lInfinite(int[] a,
                            int[] b)

Calculates L-inf for two int tuples.

Parameters:

a - tuple

b - tuple

Returns:

L-infinite for a and b.

euclidean

public static int euclidean(int[] a,
                            int[] b)

Calculates the euc distance for two tuples

Parameters:

a - tuple

b - tuple

Returns:

L-infinite for a and b.