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

Class Abstraction_Generic

java.lang.Object

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

All Implemented Interfaces:

java.lang.Comparable<Abstraction_Generic>

Direct Known Subclasses:

Abstraction_Qualitative

public abstract class Abstraction_Generic
extends java.lang.Object
implements java.lang.Comparable<Abstraction_Generic>

Abstract Class to enable any kind of abstraction. 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
Abstraction_Generic()

Method Summary

Modifier and Type	Method and Description
abstract boolean	compute(PseudoSequence sequence, int projection, int indexItemset) It returns true if the projection indicated starts in the middle of an itemset and the abstraction is an equal relation, or if the projection starts in the first item of the itemset and the abstraction does not have an equal relation.
abstract boolean	equals(java.lang.Object o) It checks if this abstraction is equal to another abstraction
abstract int	hashCode() It returns the hash code associated with an abstraction
abstract java.lang.String	toString() It returns a string representation of an abstraction
abstract java.lang.String	toStringToFile() It returns a string representation according to SPMF format

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

Abstraction_Generic

public Abstraction_Generic()

Method Detail

equals

public abstract boolean equals(java.lang.Object o)

It checks if this abstraction is equal to another abstraction

Overrides:

equals in class java.lang.Object

Parameters:

o - the other abstraction

Returns:

true if equal. Otherwise, false.

hashCode

public abstract int hashCode()

It returns the hash code associated with an abstraction

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code

toString

public abstract java.lang.String toString()

It returns a string representation of an abstraction

Overrides:

toString in class java.lang.Object

Returns:

a string

toStringToFile

public abstract java.lang.String toStringToFile()

It returns a string representation according to SPMF format

Returns:

a string

compute

public abstract boolean compute(PseudoSequence sequence,
                                int projection,
                                int indexItemset)

It returns true if the projection indicated starts in the middle of an itemset and the abstraction is an equal relation, or if the projection starts in the first item of the itemset and the abstraction does not have an equal relation.

Parameters:

sequence - a sequence

projection - the projection index

indexItemset - a given itemset position

Returns:

true if the condition above is met.