net.seninp.jmotif.cluster

Class RandomStartStrategy

java.lang.Object

net.seninp.jmotif.cluster.RandomStartStrategy

All Implemented Interfaces:

StartStrategy

public class RandomStartStrategy
extends Object
implements StartStrategy

Implements a random strategy

Author:

psenin

Constructor Summary

Constructors

Constructor and Description
RandomStartStrategy()

Method Summary

Modifier and Type	Method and Description
LinkedHashMap<String,HashMap<String,Double>>	getCentroids(Integer num, HashMap<String,HashMap<String,Double>> data) Samples out of data desired number of entries to use as initial cluster centers.

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomStartStrategy

public RandomStartStrategy()

Method Detail

getCentroids

public LinkedHashMap<String,HashMap<String,Double>> getCentroids(Integer num,
                                                                 HashMap<String,HashMap<String,Double>> data)

Samples out of data desired number of entries to use as initial cluster centers.

Specified by:

getCentroids in interface StartStrategy

Parameters:

num - The desired number of centers.

data - The data. JMotif's tfidf structure used.

Returns:

Sampled according to the strategy data.