61 lines
1.6 KiB
Java
61 lines
1.6 KiB
Java
package eu.dnetlib.pace.tree;
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import com.wcohen.ss.AbstractStringDistance;
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import eu.dnetlib.pace.distance.DistanceClass;
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import eu.dnetlib.pace.distance.SecondStringDistanceAlgo;
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import eu.dnetlib.pace.tree.support.AbstractComparator;
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import eu.dnetlib.pace.tree.support.ComparatorClass;
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import java.util.Map;
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/**
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* Compared compare between two titles, ignoring version numbers. Suitable for Software entities.
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*/
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@ComparatorClass("levensteinTitleIgnoreVersion")
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public class LevensteinTitleIgnoreVersion extends AbstractComparator {
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public LevensteinTitleIgnoreVersion(Map<String,Number> params){
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super(params, new com.wcohen.ss.Levenstein());
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}
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public LevensteinTitleIgnoreVersion(final double w) {
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super(w, new com.wcohen.ss.Levenstein());
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}
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protected LevensteinTitleIgnoreVersion(final double w, final AbstractStringDistance ssalgo) {
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super(w, ssalgo);
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}
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@Override
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public double distance(final String a, final String b) {
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String ca = cleanup(a);
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String cb = cleanup(b);
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ca = ca.replaceAll("\\d", "").replaceAll(getRomans(ca), "").trim();
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cb = cb.replaceAll("\\d", "").replaceAll(getRomans(cb), "").trim();
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ca = filterAllStopWords(ca);
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cb = filterAllStopWords(cb);
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final String cca = finalCleanup(ca);
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final String ccb = finalCleanup(cb);
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return normalize(ssalgo.score(cca, ccb), cca.length(), ccb.length());
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}
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private double normalize(final double score, final int la, final int lb) {
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return 1 - (Math.abs(score) / Math.max(la, lb));
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}
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@Override
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public double getWeight() {
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return super.weight;
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}
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@Override
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protected double normalize(final double d) {
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return 1 / Math.pow(Math.abs(d) + 1, 0.1);
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}
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}
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