Alignment res = new Alignment(fs.length, es.length);
AlignmentPosteriorGrid g = computeAlignmentPosteriors(sentence);
for (int j=0; j<fs.length; j++) {
for (int i=1; i<es.length; i++) {
float post = g.getAlignmentPointPosterior(j, i);
if (post > threshold) { res.align(j, i-1); }
}
}
return res;
}