10. The method of claim 2 , wherein determining keyword frequency further comprises: tokenizing a message using the classifier, where the message includes a set of words; filtering stop words from the set of words using the tokenized message and the classifier; keyword stemming the filtered tokenized message using the classifier; and counting the stemmed keywords using the classifier.
10. The method of claim 2 , wherein determining keyword frequency further comprises: tokenizing a message using the classifier, where the message includes a set of words; filtering stop words from the set of words using the tokenized message and the classifier; keyword stemming the filtered tokenized message using the classifier; and counting the stemmed keywords using the classifier. 12. The method of claim 10 , wherein the stop words are words in a message that do not provide useful information to the classifier.