for (Entry<String> item : enDoc.entrySet()) {
String term = item.getKey();
int tf = item.getValue();
int df = dfTable.get(term);
mModel.setDF(df);
float score = mModel.computeDocumentWeight(tf, docLen);
if (score > 0) {
v.put(term, score);
sum2 += score * score;
}
}