How to include words as numerical feature in classification

Question

Whats the best method to use the words itself as the features in any machine learning algorithm ?

The problem I have to extract word related feature from a particular p

Answer 1

tf-idf is a pretty standard way of turning words into numeric features.

You need to remember to use a learning algorithm that supports numeric featuers, like SVM. Naive Bayes doesn't support numeric features.