package ca.pfv.spmf.test;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import ca.pfv.spmf.algorithms.sequentialpatterns.gsp_AGP.AlgoGSP;
import ca.pfv.spmf.algorithms.sequentialpatterns.gsp_AGP.items.SequenceDatabase;
import ca.pfv.spmf.algorithms.sequentialpatterns.gsp_AGP.items.creators.AbstractionCreator;
import ca.pfv.spmf.algorithms.sequentialpatterns.gsp_AGP.items.creators.AbstractionCreator_Qualitative;
/**
* Example of how to use the algorithm GSP, saving the results in a given
* file
* @author agomariz
*/
public class MainTestGSP_saveToFile {
public static void main(String[] args) throws IOException {
String output = ".//output.txt";
// Load a sequence database
double support = 0.5, mingap = 0, maxgap = Integer.MAX_VALUE, windowSize = 0;
boolean keepPatterns = true;
boolean verbose=false;
// if you set the following parameter to true, the sequence ids of the sequences where
// each pattern appears will be shown in the result
boolean outputSequenceIdentifiers = false;
AbstractionCreator abstractionCreator = AbstractionCreator_Qualitative.getInstance();
SequenceDatabase sequenceDatabase = new SequenceDatabase(abstractionCreator);
sequenceDatabase.loadFile(fileToPath("contextPrefixSpan.txt"), support);
AlgoGSP algorithm = new AlgoGSP(support, mingap, maxgap, windowSize,abstractionCreator);
System.out.println(sequenceDatabase.toString());
//Change the file path in order to change the destination file
algorithm.runAlgorithm(sequenceDatabase,keepPatterns,verbose, output, outputSequenceIdentifiers);
System.out.println(algorithm.getNumberOfFrequentPatterns()+ " frequent pattern found.");
System.out.println(algorithm.printedOutputToSaveInFile());
//System.out.println(algorithm.printStatistics());
}
public static String fileToPath(String filename) throws UnsupportedEncodingException {
URL url = MainTestGSP_saveToMemory.class.getResource(filename);
return java.net.URLDecoder.decode(url.getPath(), "UTF-8");
}
}