Lecture 5: Text Processing: Basics 

Great lecture on natural language processing that I never seen before Thank you sir

The Porter stemming algorithm (or 'Porter stemmer') is a process for removing the commoner morphological and inflexional endings from words in English. Its main use is as part of a term normalization process that is usually done when setting up Information Retrieval systems.

classifier: support vector machine, regression,neural network

lemmatization , stemming

word segmentation

morphology