private Set<String> getHypernyms(
String word, POS posTag, boolean firstSenseOnly, int maxIterations) {
Set<String> hypernyms = new HashSet<String>();
IIndexWord iIndexWordRoot = dict.getIndexWord(word, posTag);
if (iIndexWordRoot == null) {
return hypernyms; // no senses found
}
List<IWordID> todo = iIndexWordRoot.getWordIDs();
int iterations = 0;
while (iterations++ < maxIterations && !todo.isEmpty()) {
List<IWordID> tmp = Lists.newArrayList();
// iterate over senses
for (IWordID iWordId : todo) {
IWord iWord1 = dict.getWord(iWordId);
ISynset iSynset = iWord1.getSynset();
// multiple hypernym chains are possible for a synset
for (ISynsetID iSynsetId : iSynset.getRelatedSynsets(Pointer.HYPERNYM)) {
List<IWord> iWords = dict.getSynset(iSynsetId).getWords();
for (IWord iWord2 : iWords) {
String lemma = iWord2.getLemma().replace('_', ' ');
hypernyms.add(lemma);
tmp.add(iWord2.getID());
}
}
if (firstSenseOnly) {
break;
}
}
todo = tmp;
}
return hypernyms;
}
