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Reinforcer.java
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Reinforcer.java
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package org.genericsystem.reinforcer;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.reactivex.functions.Consumer;
import io.reactivex.subjects.PublishSubject;
public class Reinforcer {
private static final Logger logger = LoggerFactory.getLogger(Reinforcer.class);
private static final double MATCHING_RATE = 0.8;
private final Map<String, Template> templates = new HashMap<>();
private final Unclassifiable unclassifiable = new Unclassifiable();
public static void main(String[] args) {
Reinforcer reinforcer = new Reinforcer();
PublishSubject<Labels> source = PublishSubject.create();
source.subscribe(reinforcer.getObserver());
Labels labels = new Labels();
labels.addLabel(0, 0, 10, 10, "First Label");
labels.addLabel(5, 5, 15, 15, "Second Label");
source.onNext(labels);
// reinforcer.reinforce(new AbsoluteLabels().addAbsoluteLabel(0, 0, 10, 10, "First Label").addAbsoluteLabel(5, 5, 15, 15, "Second Label"));
}
public Consumer<Labels> getObserver() {
return labels -> reinforce(labels);
}
public void reinforce(Labels labels, String templateName) {
Template template = templates.get(templateName);
if (template != null)
template.reinforce(labels);
else
logger.warn("No template of name {} found.", templateName);
}
public void createNewTemplate(Labels labels, String templateName) {
if (templates.containsKey(templateName))
throw new IllegalStateException("A template with name " + templateName + " already exists.");
Template template = new Template(labels);
templates.put(templateName, template);
}
public String getBestTemplate(Labels labels) {
double bestMatchRate = 0;
String bestTemplate = null;
for (Entry<String, Template> entry : templates.entrySet()) {
logger.info("Testing template " + entry.getKey());
double matchRate = entry.getValue().getMatchRate(labels);
if (matchRate > bestMatchRate) {
bestMatchRate = matchRate;
bestTemplate = entry.getKey();
}
}
if (bestMatchRate > MATCHING_RATE) {
logger.info("Best template found: {}, labels: {}", bestTemplate, labels);
return bestTemplate;
} else {
logger.info("No template found, labels: {}", labels);
return null;
}
}
public void reinforce(Labels absoluteLabels) {
double bestMatchRate = 0;
Template bestTemplate = null;
for (Template template : templates.values()) {
double matchRate = template.getMatchRate(absoluteLabels);
if (matchRate > bestMatchRate) {
bestMatchRate = matchRate;
bestTemplate = template;
}
}
if (bestMatchRate > MATCHING_RATE)
bestTemplate.reinforce(absoluteLabels);
unclassifiable.reinforce(absoluteLabels);
}
public Unclassifiable getUnclassifiable() {
return unclassifiable;
}
}