ca.pfv.spmf.algorithms.sequentialpatterns.prefixSpan_AGP.items

Class SequenceDatabase

java.lang.Object

ca.pfv.spmf.algorithms.sequentialpatterns.prefixSpan_AGP.items.SequenceDatabase

public class SequenceDatabase
extends java.lang.Object

Inspired in SPMF. Implementation of a sequence database. Each sequence should have a unique id. See examples in /test/ directory for the format of input files. Copyright Antonio Gomariz Peñalver 2013 This file is part of the SPMF DATA MINING SOFTWARE (http://www.philippe-fournier-viger.com/spmf). SPMF is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. SPMF is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with SPMF. If not, see .

Constructor Summary

Constructors

Constructor and Description
SequenceDatabase(AbstractionCreator creador)

Method Summary

Modifier and Type	Method and Description
void	addSequence(java.lang.String[] integers, int sequenceID) It adds a sequence from an array of string that we have to interpret
void	clear()
java.util.Map<Item,java.util.BitSet>	getFrequentItems() It return the frequent items
java.util.List<Sequence>	getSequences() It return the list of sequences in this sequence database
void	loadFile(java.lang.String path, double minSupportRelative) From a file located at the given string path, we create a database composed of a list of sequences
int	size() It returns the number of sequences of the sequence database
java.lang.String	toString() String representation of the SecuenceDatabase

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SequenceDatabase

public SequenceDatabase(AbstractionCreator creador)

Method Detail

loadFile

public void loadFile(java.lang.String path,
                     double minSupportRelative)
              throws java.io.IOException

From a file located at the given string path, we create a database composed of a list of sequences

Parameters:

path - File path where we have the database

minSupportRelative - Minimum absolute support

Throws:

java.io.IOException

addSequence

public void addSequence(java.lang.String[] integers,
                        int sequenceID)

It adds a sequence from an array of string that we have to interpret

Parameters:

integers -

sequenceID -

toString

public java.lang.String toString()

String representation of the SecuenceDatabase

Overrides:

toString in class java.lang.Object

Returns:

the string

size

public int size()

It returns the number of sequences of the sequence database

Returns:

the number of sequences

getSequences

public java.util.List<Sequence> getSequences()

It return the list of sequences in this sequence database

Returns:

the list of sequences

getFrequentItems

public java.util.Map<Item,java.util.BitSet> getFrequentItems()

It return the frequent items

Returns:

a map of entries where key = item and value = its bitset.

clear

public void clear()