static void saveTrainingModel(DynamicLMClassifier mClassifier, String filename, String pos)
     throws IOException {
   System.out.println("-----Saving Model(" + pos + ") to <" + filename + ">-----");
   FileOutputStream fileOut = new FileOutputStream(filename);
   ObjectOutputStream objOut = new ObjectOutputStream(fileOut);
   mClassifier.compileTo(objOut);
   objOut.close();
 }