ca.pfv.spmf.algorithms.sequentialpatterns.spam

Class Bitmap

java.lang.Object

ca.pfv.spmf.algorithms.sequentialpatterns.spam.Bitmap

public class Bitmap
extends java.lang.Object

Implementation of a bitmap for SPAM.

Copyright (c) 2008-2012 Philippe Fournier-Viger

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 .

See Also:

AlgoCMSPAM, AlgoSPAM, AlgoTKS, AlgoVMSP

Field Summary

Fields

Modifier and Type	Field and Description
static long	INTERSECTION_COUNT

Method Summary

Modifier and Type	Method and Description
int	getSupport() Get the support of this bitmap (the number of bits set to 1)
void	registerBit(int sid, int tid, java.util.List<java.lang.Integer> sequencesSize) Set a bit to 1 in this bitmap
void	setSupport(int support) Set the support of this bitmap without using the internal BitSet object.

Methods inherited from class java.lang.Object

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

Field Detail

INTERSECTION_COUNT

public static long INTERSECTION_COUNT

Method Detail

registerBit

public void registerBit(int sid,
                        int tid,
                        java.util.List<java.lang.Integer> sequencesSize)

Set a bit to 1 in this bitmap

Parameters:

sid - the sid corresponding to that bit

tid - the tid corresponding to that bit

sequencesSize - the list of sequence length to know how many bits are allocated to each sequence

getSupport

public int getSupport()

Get the support of this bitmap (the number of bits set to 1)

Returns:

the support.

setSupport

public void setSupport(int support)

Set the support of this bitmap without using the internal BitSet object. This method is used by VGEN

Parameters:

support - the support as an integer value.