code: @Override
      public String classify(String text) throws IllegalArgumentException, IllegalStateException
      {
          Map<String, Double> scoreMap = predict(text);
  
          return CollectionUtility.max(scoreMap);
      }
docs: 使用一个训练出来的分类器来预测分类
  
  @param text
  @return
  @throws IllegalArgumentException
  @throws IllegalStateException