package ca.pfv.spmf.test;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan.AlgoBIDEPlus;
import ca.pfv.spmf.algorithms.sequentialpatterns.BIDE_and_prefixspan.SequentialPatterns;
import ca.pfv.spmf.input.sequence_database_list_integers.SequenceDatabase;
/**
* Example of how to use the BIDE+ algorithm, from the source code.
*
* @author Philippe Fournier-Viger
*/
public class MainTestBIDEPlus_saveToMemory {
public static void main(String [] arg) throws IOException{
// Load a sequence database
SequenceDatabase sequenceDatabase = new SequenceDatabase();
sequenceDatabase.loadFile(fileToPath("contextPrefixSpan.txt"));
sequenceDatabase.print();
// Create an instance of the algorithm
AlgoBIDEPlus algo = new AlgoBIDEPlus();
// 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 showSequenceIdentifiers = true;
// execute the algorithm
SequentialPatterns patterns = algo.runAlgorithm(sequenceDatabase, null, 2);
algo.printStatistics(sequenceDatabase.size());
patterns.printFrequentPatterns(sequenceDatabase.size(),showSequenceIdentifiers);
}
public static String fileToPath(String filename) throws UnsupportedEncodingException{
URL url = MainTestBIDEPlus_saveToMemory.class.getResource(filename);
return java.net.URLDecoder.decode(url.getPath(),"UTF-8");
}
}