ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan_with_strings

Class SequentialPatterns

java.lang.Object

ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan_with_strings.SequentialPatterns

public class SequentialPatterns
extends java.lang.Object

This class represents a set of sequential patterns found either by the PrefixSpan or BIDE+ algorithms, grouped by their size (how many items they have).

See Also:

Itemset, AlgoPrefixSpan_with_Strings, AlgoBIDEPlus_withStrings

Constructor Summary

Constructors

Constructor and Description
SequentialPatterns(java.lang.String name) Constructor

Method Summary

Modifier and Type	Method and Description
java.util.List<SequentialPattern>	getLevel(int index) Get all the sequential patterns of a given size.
int	getLevelCount() Get the maximum size of sequential patterns + 1.
java.util.List<java.util.List<SequentialPattern>>	getLevels() Get a list of list of sequential patterns such that at position i, there is a list of sequential patterns containing i items.
void	printSequencesFrequentes(int nbObject) Print all sequential patterns to System.out.
java.lang.String	toString(int nbObject) Get a string representation of this set of sequential patterns.

Methods inherited from class java.lang.Object

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

Constructor Detail

SequentialPatterns

public SequentialPatterns(java.lang.String name)

Constructor

Parameters:

name - a name to give to this set of patterns

Method Detail

printSequencesFrequentes

public void printSequencesFrequentes(int nbObject)

Print all sequential patterns to System.out.

Parameters:

nbObject - the size of the original database in terms of sequences.

toString

public java.lang.String toString(int nbObject)

Get a string representation of this set of sequential patterns.

Parameters:

nbObject - the number of sequences in the database where these patterns were found.

Returns:

a string

getLevel

public java.util.List<SequentialPattern> getLevel(int index)

Get all the sequential patterns of a given size.

Parameters:

index - the size in terms of items.

Returns:

a list of sequential patterns.

getLevelCount

public int getLevelCount()

Get the maximum size of sequential patterns + 1.

Returns:

the maximum size.

getLevels

public java.util.List<java.util.List<SequentialPattern>> getLevels()

Get a list of list of sequential patterns such that at position i, there is a list of sequential patterns containing i items.

Returns:

the list of pattern lists.