public Tense calculateTense(String clause) {
final Tree posTree = getPosTree(clause);
final Tree word = posTree.getLeaves().get(0);
final String pos = word.parent(posTree).label().value().toLowerCase();
if (pos.equals("md")) {
return Tense.FUTURE;
}
if (pos.equals("vbd") || pos.equals("vbn")) {
return Tense.PAST;
}
return Tense.PRESENT;
}
private void collectFreqs(Tree tag, Model model, Type type, double[] freqs) {
Statistics unsmoothed_statistics = model.getStatistics();
List<Tree> leaves = new LinkedList<Tree>();
tag.getLeaves(leaves);
Arrays.fill(freqs, 0.0);
for (Tree leaf : leaves) {
int tag_index = model.getTagTable().toIndex(leaf.getName(), false);
for (int index = 0; index < freqs.length; index++) {
freqs[index] += getFreq(unsmoothed_statistics, tag_index, index, type);
}
}
}
public static ArrayList<ArrayList<TaggedWord>> getPhrases(Tree parse, int phraseSizeLimit) {
ArrayList<ArrayList<TaggedWord>> newList = new ArrayList<ArrayList<TaggedWord>>();
List<Tree> leaves = parse.getLeaves();
if (leaves.size() <= phraseSizeLimit) {
// ArrayList<TaggedWord> phraseElements = PreprocessPhrase(parse.taggedYield());
ArrayList<TaggedWord> phraseElements = Preprocess(parse.taggedYield());
if (phraseElements.size() > 0) newList.add(phraseElements);
} else {
Tree[] childrenNodes = parse.children();
for (int i = 0; i < childrenNodes.length; i++) {
Tree currentParse = childrenNodes[i];
newList.addAll(getPhrases(currentParse, phraseSizeLimit));
}
}
return newList;
}