The file, SE.csv contains two columns: the first column is a list of keywords; the second column is the profit value (positive for earning and negative for loss). 

The data is provided by Prof. WANG Hansheng in Guanghua Business School at PKU and only used for research purpose.

--
Yuan Yao
School of Mathematical Sciences
Peking University
Beijing, 100871
Email: yuany@math.pku.edu.cn

April 2, 2010