private void loadFrequentCfMap(int n) { if (frequentTermsCfs != null) return; frequentTermsCfs = new HMapKL<String>(); if (cfs.length < n) n = cfs.length; for (int id = 1; id <= n; id++) { frequentTermsCfs.put(prefixSet.getTerm(idToTerm[id - 1]), cfs[idToTerm[id - 1]]); } }