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ComputeFilterParamOptimization.java
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ComputeFilterParamOptimization.java
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package org.genericsystem.cv.comparator;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.genericsystem.api.core.Snapshot;
import org.genericsystem.common.Generic;
import org.genericsystem.cv.Levenshtein;
import org.genericsystem.cv.model.Doc;
import org.genericsystem.cv.model.Doc.DocInstance;
import org.genericsystem.cv.model.DocClass;
import org.genericsystem.cv.model.ImgFilter;
import org.genericsystem.cv.model.MeanLevenshtein;
import org.genericsystem.cv.model.ImgFilter.ImgFilterInstance;
import org.genericsystem.cv.model.MeanLevenshtein.MeanLevenshteinInstance;
import org.genericsystem.cv.model.Score;
import org.genericsystem.cv.model.Score.ScoreInstance;
import org.genericsystem.cv.model.ZoneGeneric;
import org.genericsystem.cv.model.ZoneGeneric.ZoneInstance;
import org.genericsystem.kernel.Engine;
import org.opencv.core.Core;
import org.genericsystem.cv.model.ZoneText;
import org.genericsystem.cv.model.ZoneText.ZoneTextInstance;
/**
* The ComputeTrainedScores class computes the {@link Score} and the
* {@link MeanLevenshtein} for each zone and each filter.
*
* The data is retrieved from GS, and stored in GS.
*
* @author Pierrik Lassalas
*
*/
public class ComputeFilterParamOptimization {
private final static String docType = "id-fr-front";
private static final String gsPath = System.getenv("HOME") + "/genericsystem/gs-cv_model2/";
private final static Engine engine = new Engine(gsPath, Doc.class, ImgFilter.class, ZoneGeneric.class,
ZoneText.class, Score.class, MeanLevenshtein.class);
static {
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
}
public static void main(String[] mainArgs) {
engine.newCache().start();
compute();
// printResults(10);
engine.close();
}
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void compute() {
Generic currentDocClass = engine.find(DocClass.class).getInstance(docType);
ImgFilter imgFilter = engine.find(ImgFilter.class);
ZoneText zoneText = engine.find(ZoneText.class);
Score score = engine.find(Score.class);
MeanLevenshtein meanLevenshtein = engine.find(MeanLevenshtein.class);
System.out.println("Current doc class : " + currentDocClass);
// TODO convert to Stream?
List<DocInstance> docInstances = (List) currentDocClass.getHolders(engine.find(Doc.class)).toList();
List<ZoneInstance> zoneInstances = (List) currentDocClass.getHolders(engine.find(ZoneGeneric.class)).toList();
List<ImgFilterInstance> imgFilterInstances = (List) imgFilter.getInstances()
.filter(f -> !"reality".equals(f.getValue())).toList();
ImgFilterInstance realityInstance = imgFilter.getImgFilter("reality");
// Loop over all zone instances
for (ZoneInstance zoneInstance : zoneInstances) {
System.out.println("=> Zone " + zoneInstance);
List<Float> meanLevDistances = new ArrayList<Float>();
List<Float> probabilities = new ArrayList<Float>();
// Loop over all filters
for (ImgFilterInstance imgFilterInstance : imgFilterInstances) {
int lev = 0; // contains the sum of all Levenshtein
// distances for a given zone
int count = 0; // contains the number of perfect matches
// Loop over all documents in this class
for (DocInstance docInstance : docInstances) {
String realText = (String) zoneText.getZoneText(docInstance, zoneInstance, realityInstance)
.getValue();
ZoneTextInstance zti = zoneText.getZoneText(docInstance, zoneInstance, imgFilterInstance);
if (zti == null)
continue;
String text = (String) zti.getValue();
// TODO : manipulate the Strings before comparison?
// (remove spaces, etc.)
int dist = Levenshtein.distance(text.replaceAll("[\n ,.]", "").trim(),
realText.replaceAll("[\n ,.]", "").trim());
count += (dist == 0) ? 1 : 0;
lev += dist;
}
float probability = (float) count / (float) docInstances.size();
float meanDistance = (float) lev / (float) docInstances.size();
ScoreInstance scoreInstance = score.addScore(probability, zoneInstance, imgFilterInstance);
MeanLevenshteinInstance meanLevenshteinInstance = meanLevenshtein.addMeanLev(meanDistance,
scoreInstance);
meanLevDistances.add(meanDistance);
probabilities.add(probability);
}
engine.getCurrentCache().flush();
}
printResults(10);
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private static void printBestResults(ZoneInstance zoneInstance, int limit) {
Score score = engine.find(Score.class);
MeanLevenshtein meanLevenshtein = engine.find(MeanLevenshtein.class);
System.out.println("=> Zone " + zoneInstance.getValue() + " best filters: ");
zoneInstance.getHolders(score).stream()
.sorted((g2, g1) -> Float.compare((Float) g1.getValue(), (Float) g2.getValue())) // Add another comparator to sort by meanlev
.limit(limit)
.forEach(s -> {
System.out.println(((ScoreInstance) s).getImgFilter().getValue()
+ " (probability: " + s.getValue() + ", meanLev: "
+ s.getHolder(meanLevenshtein).getValue() + ")");
});
System.out.println("");
}
@SuppressWarnings({ "unchecked", "rawtypes" })
private static void printResults(int limit) {
Generic currentDocClass = engine.find(DocClass.class).getInstance(docType);
Snapshot<ZoneInstance> zoneInstances = (Snapshot) currentDocClass.getHolders(engine.find(ZoneGeneric.class));
zoneInstances.forEach(zi -> printBestResults(zi, limit));
}
}