ca.pfv.spmf.algorithms.frequentpatterns.eclat

Class AlgoDEclat

java.lang.Object

ca.pfv.spmf.algorithms.frequentpatterns.eclat.AlgoEclat

ca.pfv.spmf.algorithms.frequentpatterns.eclat.AlgoDEclat

public class AlgoDEclat
extends AlgoEclat

This is a version of the dECLAT algorithm. It uses sets of integers to represent tidsets. It extends the class AlgoDEclat to avoid redundancy of common code. Note than unlike Eclat, dEclat returns itemsets annotated with diffsets instead of tidsets. About implementation details, note that this implementation uses tidsets initially for single items, then it uses diffsets starting from itemsets containing two itemsets (2-itemsets). See this article for details about dECLAT:

Zaki, M.J., Gouda, K.: Fast vertical mining using diffsets. Technical Report 01-1, Computer Science Dept., Rensselaer Polytechnic Institute (March 2001) 10

This version saves the result to a file or keep it into memory if no output path is provided by the user to the runAlgorithm method().

See Also:

TriangularMatrix, TransactionDatabase, Itemset, Itemsets

Constructor Summary

Constructors

Constructor and Description
AlgoDEclat()

Method Summary

Modifier and Type	Method and Description
void	printStats() Print statistics about the algorithm execution to System.out.

Methods inherited from class ca.pfv.spmf.algorithms.frequentpatterns.eclat.AlgoEclat

getItemsets, runAlgorithm

Methods inherited from class java.lang.Object

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

Constructor Detail

AlgoDEclat

public AlgoDEclat()

Method Detail

printStats

public void printStats()

Print statistics about the algorithm execution to System.out.

Overrides:

printStats in class AlgoEclat