returns the class name corresponding to a number concode_field_sep int numOfClasses concode_field_sep int getClassWordCount concode_elem_sep float testNaiveBayes concode_elem_sep double calculateProductOfProbGivenClass concode_elem_sep double findProbFromNaiveBayesMap concode_elem_sep boolean isPersonCorrectlyClassified concode_elem_sep String predictClassFromBlogs