forked from D-Net/dnet-hadoop
56 lines
1.4 KiB
Java
56 lines
1.4 KiB
Java
package eu.dnetlib.pace.tree;
|
|
|
|
import com.wcohen.ss.AbstractStringDistance;
|
|
import eu.dnetlib.pace.config.Config;
|
|
import eu.dnetlib.pace.tree.support.AbstractStringComparator;
|
|
import eu.dnetlib.pace.tree.support.ComparatorClass;
|
|
import org.apache.commons.logging.Log;
|
|
import org.apache.commons.logging.LogFactory;
|
|
|
|
import java.util.Map;
|
|
|
|
@ComparatorClass("levensteinTitle")
|
|
public class LevensteinTitle extends AbstractStringComparator {
|
|
|
|
private static final Log log = LogFactory.getLog(LevensteinTitle.class);
|
|
|
|
public LevensteinTitle(Map<String,String> params){
|
|
super(params, new com.wcohen.ss.Levenstein());
|
|
}
|
|
|
|
public LevensteinTitle(final double w) {
|
|
super(w, new com.wcohen.ss.Levenstein());
|
|
}
|
|
|
|
protected LevensteinTitle(final double w, final AbstractStringDistance ssalgo) {
|
|
super(w, ssalgo);
|
|
}
|
|
|
|
@Override
|
|
public double distance(final String a, final String b, final Config conf) {
|
|
final String ca = cleanup(a);
|
|
final String cb = cleanup(b);
|
|
|
|
final boolean check = checkNumbers(ca, cb);
|
|
|
|
if (check) return 0.5;
|
|
|
|
return normalize(ssalgo.score(ca, cb), ca.length(), cb.length());
|
|
}
|
|
|
|
private double normalize(final double score, final int la, final int lb) {
|
|
return 1 - (Math.abs(score) / Math.max(la, lb));
|
|
}
|
|
|
|
@Override
|
|
public double getWeight() {
|
|
return super.weight;
|
|
}
|
|
|
|
@Override
|
|
protected double normalize(final double d) {
|
|
return 1 / Math.pow(Math.abs(d) + 1, 0.1);
|
|
}
|
|
|
|
}
|