ca.pfv.spmf.algorithms.sequential_rules.trulegrowth_with_strings

Class AlgoTRuleGrowth_withStrings

java.lang.Object

ca.pfv.spmf.algorithms.sequential_rules.trulegrowth_with_strings.AlgoTRuleGrowth_withStrings

public class AlgoTRuleGrowth_withStrings
extends java.lang.Object

This is a modified implementation of the TRULEGROWTH algorithm for mining sequential rules from sequences containing Strings instead of integers.

Fournier-Viger, P., Wu, C.-W., Tseng, V.S., Nkambou, R. (2012). Mining Sequential Rules Common to Several Sequences with the Window Size Constraint. Proceedings of the 25th Canadian Conf. on Artificial Intelligence (AI 2012), Springer, LNAI 7310, pp.299-304.

In future a version of SPMF, it is planned to remove this class and to provide a more general mechanism for handling strings that would work for all algorithms that take sequences as input.

See Also:

Itemset, AlgoTRuleGrowth, Sequence, SequenceDatabase

Constructor Summary

Constructors

Constructor and Description
AlgoTRuleGrowth_withStrings() Default constructor

Method Summary

Modifier and Type	Method and Description
double	getTotalTime() Get the total runtime of the last execution.
void	printStats() Print statistics about the last algorithm execution to System.out.
void	runAlgorithm(double minSupport, double minConfidence, java.lang.String input, java.lang.String output, int windowSize) Run the algorithm.
void	runAlgorithm(java.lang.String input, java.lang.String output, int relativeMinSupport, double minConfidence, int windowSize) Run the algorithm.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlgoTRuleGrowth_withStrings

public AlgoTRuleGrowth_withStrings()

Default constructor

Method Detail

runAlgorithm

public void runAlgorithm(double minSupport,
                         double minConfidence,
                         java.lang.String input,
                         java.lang.String output,
                         int windowSize)
                  throws java.io.IOException

Run the algorithm.

Parameters:

minSupport - Minsup as a percentage (ex: 0.05 = 5 %)

minConfidence - minimum confidence (a value between 0 and 1).

input - the input file path

output - the output file path

windowSize - a window size

Throws:

java.io.IOException - exception if there is an error reading/writing files

runAlgorithm

public void runAlgorithm(java.lang.String input,
                         java.lang.String output,
                         int relativeMinSupport,
                         double minConfidence,
                         int windowSize)
                  throws java.io.IOException

Run the algorithm.

Parameters:

relativeMinSupport - minsup as a a relative value (integer)

minConfidence - minimum confidence (a value between 0 and 1).

input - the input file path

output - the output file path

windowSize - a window size

Throws:

java.io.IOException - exception if there is an error reading/writing files

printStats

public void printStats()

Print statistics about the last algorithm execution to System.out.

getTotalTime

public double getTotalTime()

Get the total runtime of the last execution.

Returns:

the time as a double.