Simple LSA and a paper associated with it
Input Class
Create README.md
Add Readme Comment

Claim the structure of the input dict
still need to modify the grading
Merge branch 'master' of github.com:dx88968/NLP
Fix a bug
Reading for em in plsa
	modified:   grading.py
	modified:   inputData.py
Merge branch 'master' of github.com:dx88968/NLP
Add tf-idf to input
Merge branch 'master' of https://github.com/dx88968/NLP

Conflicts:
	README.md
	grading.py
	inputData.py
	lsa2.py