private void checkMinFreq() {
		String minFreqInTFList= "";
		int num = 0;

		TreeMap<String, Integer> TFFreqTemp = new TreeMap<String, Integer>(TFFreq);
		Iterator<Entry<String, Integer>> iter= TFFreqTemp.entrySet().iterator(); 
		while(iter.hasNext()){
			Entry<String, Integer> entry = iter.next();
			String hash = entry.getKey();
			int freq = entry.getValue();
			if(freq <= Settings.minNewFreq){
				TFFreq.remove(hash);
				//System.out.println(hash+":"+freq);
				minFreqInTFList += hash+", ";
				num ++;
			}
		}
		System.out.printf("************ %3d ********** Removed LowFreq Words: %s\n",num,minFreqInTFList);	
	}