fr.jgetmove.jgetmove.detector

Class ConvergentDetector

java.lang.Object

fr.jgetmove.jgetmove.detector.ConvergentDetector

All Implemented Interfaces:

Detector, MultiDetector

public class ConvergentDetector
extends java.lang.Object
implements MultiDetector

In charge of detecting Convergent patterns

A convergeant pattern is when more and more transactions are joining across a period of time

Since:

0.2.0

See Also:

DivergentDetector

Constructor Summary

Constructors

Constructor and Description
ConvergentDetector()

Method Summary

Modifier and Type	Method and Description
java.util.ArrayList<Pattern>	detect(DataBase dataBase, java.util.Collection<Itemset> itemsets) Detects all the Convergent in a collection of itemsets.
int	subDetect(boolean[][] itemsetMatrice, int clusterId, java.util.ArrayList<java.lang.Integer> itemsetIds, int nbClusters) Detect the last cluster when all the itemsetIds are present
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConvergentDetector

public ConvergentDetector()

Method Detail

detect

public java.util.ArrayList<Pattern> detect(DataBase dataBase,
                                           java.util.Collection<Itemset> itemsets)

Detects all the Convergent in a collection of itemsets.

Specified by:

detect in interface MultiDetector

Parameters:

dataBase - data binder

itemsets - a collection of all the itemsets detected

Returns:

an array of detected patterns

subDetect

public int subDetect(boolean[][] itemsetMatrice,
                     int clusterId,
                     java.util.ArrayList<java.lang.Integer> itemsetIds,
                     int nbClusters)

Detect the last cluster when all the itemsetIds are present

Parameters:

itemsetMatrice - the matrix

clusterId - the first clusterId when the itemsets are all present

itemsetIds - a list of the itemsetIds

nbClusters - the maximum number of clusters

Returns:

the last clusterId where all the itemsetIds are present

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object