Java tutorial
/* * This file is part of JaTeCS. * * JaTeCS is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JaTeCS is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with JaTeCS. If not, see <http://www.gnu.org/licenses/>. * * The software has been mainly developed by (in alphabetical order): * - Andrea Esuli (andrea.esuli@isti.cnr.it) * - Tiziano Fagni (tiziano.fagni@isti.cnr.it) * - Alejandro Moreo Fernndez (alejandro.moreo@isti.cnr.it) * Other past contributors were: * - Giacomo Berardi (giacomo.berardi@isti.cnr.it) */ package apps.quantification; import gnu.trove.TShortDoubleHashMap; import it.cnr.jatecs.classification.ClassificationMode; import it.cnr.jatecs.classification.svmlight.SvmLightClassifierCustomizer; import it.cnr.jatecs.classification.svmlight.SvmLightDataManager; import it.cnr.jatecs.evaluation.ContingencyTable; import it.cnr.jatecs.evaluation.ContingencyTableSet; import it.cnr.jatecs.indexes.DB.interfaces.IIndex; import it.cnr.jatecs.indexes.DB.troveCompact.TroveClassificationDBType; import it.cnr.jatecs.indexes.DB.troveCompact.TroveContentDBType; import it.cnr.jatecs.indexes.DB.troveCompact.TroveReadWriteHelper; import it.cnr.jatecs.io.FileSystemStorageManager; import it.cnr.jatecs.quantification.*; import it.cnr.jatecs.quantification.interfaces.IQuantifier; import it.cnr.jatecs.utils.Os; import it.cnr.jatecs.utils.iterators.interfaces.IShortIterator; import org.apache.commons.cli.*; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; /** * This app applies a pool of SVM_light-based quantification models to a test set. * <p> * The SVM_light classify executable must be locally available. * * @author Andrea Esuli */ public class QuantifySVMLight { public static void main(String[] args) throws IOException { String cmdLineSyntax = QuantifySVMLight.class.getName() + " [OPTIONS] <path to svm_light_classify> <testIndexDirectory> <quantificationModelDirectory>"; Options options = new Options(); OptionBuilder.withArgName("d"); OptionBuilder.withDescription("Dump confidences file"); OptionBuilder.withLongOpt("d"); OptionBuilder.isRequired(false); OptionBuilder.hasArg(false); options.addOption(OptionBuilder.create()); OptionBuilder.withArgName("t"); OptionBuilder.withDescription("Path for temporary files"); OptionBuilder.withLongOpt("t"); OptionBuilder.isRequired(false); OptionBuilder.hasArg(); options.addOption(OptionBuilder.create()); OptionBuilder.withArgName("v"); OptionBuilder.withDescription("Verbose output"); OptionBuilder.withLongOpt("v"); OptionBuilder.isRequired(false); OptionBuilder.hasArg(false); options.addOption(OptionBuilder.create()); OptionBuilder.withArgName("s"); OptionBuilder.withDescription("Don't delete temporary files in svm_light format (default: delete)"); OptionBuilder.withLongOpt("s"); OptionBuilder.isRequired(false); OptionBuilder.hasArg(false); options.addOption(OptionBuilder.create()); SvmLightClassifierCustomizer customizer = null; GnuParser parser = new GnuParser(); String[] remainingArgs = null; try { CommandLine line = parser.parse(options, args); remainingArgs = line.getArgs(); customizer = new SvmLightClassifierCustomizer(remainingArgs[0]); if (line.hasOption("v")) customizer.printSvmLightOutput(true); if (line.hasOption("s")) { System.out.println("Keeping temporary files."); customizer.setDeleteTestFiles(false); customizer.setDeletePredictionsFiles(false); } if (line.hasOption("t")) customizer.setTempPath(line.getOptionValue("t")); } catch (Exception exp) { System.err.println("Parsing failed. Reason: " + exp.getMessage()); HelpFormatter formatter = new HelpFormatter(); formatter.printHelp(cmdLineSyntax, options); System.exit(-1); } if (remainingArgs.length != 3) { HelpFormatter formatter = new HelpFormatter(); formatter.printHelp(cmdLineSyntax, options); System.exit(-1); } String indexFile = remainingArgs[1]; File file = new File(indexFile); String indexName = file.getName(); String indexPath = file.getParent(); String quantifierFilename = remainingArgs[2]; FileSystemStorageManager indexFssm = new FileSystemStorageManager(indexPath, false); indexFssm.open(); IIndex test = TroveReadWriteHelper.readIndex(indexFssm, indexName, TroveContentDBType.Full, TroveClassificationDBType.Full); indexFssm.close(); FileSystemStorageManager quantifierFssm = new FileSystemStorageManager(quantifierFilename, false); quantifierFssm.open(); SvmLightDataManager classifierDataManager = new SvmLightDataManager(customizer); FileSystemStorageManager fssm = new FileSystemStorageManager(quantifierFilename, false); fssm.open(); IQuantifier[] quantifiers = QuantificationLearner.read(fssm, classifierDataManager, ClassificationMode.PER_CATEGORY); fssm.close(); quantifierFssm.close(); Quantification ccQuantification = quantifiers[0].quantify(test); Quantification paQuantification = quantifiers[1].quantify(test); Quantification accQuantification = quantifiers[2].quantify(test); Quantification maxQuantification = quantifiers[3].quantify(test); Quantification sccQuantification = quantifiers[4].quantify(test); Quantification spaQuantification = quantifiers[5].quantify(test); Quantification trueQuantification = new Quantification("True", test.getClassificationDB()); File quantifierFile = new File(quantifierFilename); String quantificationName = quantifierFile.getParent() + Os.pathSeparator() + indexName + "_" + quantifierFile.getName() + ".txt"; BufferedWriter writer = new BufferedWriter(new FileWriter(quantificationName)); IShortIterator iterator = test.getCategoryDB().getCategories(); while (iterator.hasNext()) { short category = iterator.next(); String prefix = quantifierFile.getName() + "\t" + indexName + "\t" + test.getCategoryDB().getCategoryName(category) + "\t" + category + "\t" + trueQuantification.getQuantification(category) + "\t"; writer.write(prefix + ccQuantification.getName() + "\t" + ccQuantification.getQuantification(category) + "\n"); writer.write(prefix + paQuantification.getName() + "\t" + paQuantification.getQuantification(category) + "\n"); writer.write(prefix + accQuantification.getName() + "\t" + accQuantification.getQuantification(category) + "\n"); writer.write(prefix + maxQuantification.getName() + "\t" + maxQuantification.getQuantification(category) + "\n"); writer.write(prefix + sccQuantification.getName() + "\t" + sccQuantification.getQuantification(category) + "\n"); writer.write(prefix + spaQuantification.getName() + "\t" + spaQuantification.getQuantification(category) + "\n"); } writer.close(); BufferedWriter bfs = new BufferedWriter(new FileWriter(quantifierFile.getParent() + Os.pathSeparator() + indexName + "_" + quantifierFile.getName() + "_rates.txt")); TShortDoubleHashMap simpleTPRs = ((CCQuantifier) quantifiers[0]).getSimpleTPRs(); TShortDoubleHashMap simpleFPRs = ((CCQuantifier) quantifiers[0]).getSimpleFPRs(); TShortDoubleHashMap maxTPRs = ((CCQuantifier) ((ScaledQuantifier) quantifiers[3]).getInternalQuantifier()) .getSimpleTPRs(); TShortDoubleHashMap maxFPRs = ((CCQuantifier) ((ScaledQuantifier) quantifiers[3]).getInternalQuantifier()) .getSimpleFPRs(); TShortDoubleHashMap scaledTPRs = ((PAQuantifier) quantifiers[1]).getScaledTPRs(); TShortDoubleHashMap scaledFPRs = ((PAQuantifier) quantifiers[1]).getScaledFPRs(); ContingencyTableSet simpleContingencyTableSet = ((CCQuantifier) quantifiers[0]).getContingencyTableSet(); ContingencyTableSet maxContingencyTableSet = ((CCQuantifier) ((ScaledQuantifier) quantifiers[3]) .getInternalQuantifier()).getContingencyTableSet(); short[] cats = simpleTPRs.keys(); for (int i = 0; i < cats.length; ++i) { short cat = cats[i]; String catName = test.getCategoryDB().getCategoryName(cat); ContingencyTable simpleContingencyTable = simpleContingencyTableSet.getCategoryContingencyTable(cat); ContingencyTable maxContingencyTable = maxContingencyTableSet.getCategoryContingencyTable(cat); double simpleTPR = simpleTPRs.get(cat); double simpleFPR = simpleFPRs.get(cat); double maxTPR = maxTPRs.get(cat); double maxFPR = maxFPRs.get(cat); double scaledTPR = scaledTPRs.get(cat); double scaledFPR = scaledFPRs.get(cat); String line = indexName + "_" + quantifierFile.getName() + "\ttest\tsimple\t" + catName + "\t" + cat + "\t" + simpleContingencyTable.tp() + "\t" + simpleContingencyTable.fp() + "\t" + simpleContingencyTable.fn() + "\t" + simpleContingencyTable.tn() + "\t" + simpleTPR + "\t" + simpleFPR + "\n"; bfs.write(line); line = indexName + "_" + quantifierFile.getName() + "\ttest\tmax\t" + catName + "\t" + cat + "\t" + maxContingencyTable.tp() + "\t" + maxContingencyTable.fp() + "\t" + maxContingencyTable.fn() + "\t" + maxContingencyTable.tn() + "\t" + maxTPR + "\t" + maxFPR + "\n"; bfs.write(line); line = indexName + "_" + quantifierFile.getName() + "\ttest\tscaled\t" + catName + "\t" + cat + "\t" + simpleContingencyTable.tp() + "\t" + simpleContingencyTable.fp() + "\t" + simpleContingencyTable.fn() + "\t" + simpleContingencyTable.tn() + "\t" + scaledTPR + "\t" + scaledFPR + "\n"; bfs.write(line); } bfs.close(); } }