Short introduction to Vector Space Model (VSM) In information retrieval or text mining, the term frequency - inverse document frequency also called tf-idf, is
MALLET is a Java-based package for statistical natural language processing, document classification, clustering, topic modeling, information extraction, and other machine learning applications to text.
The impasse in math and science instruction runs deeper than test scores or the latest educational theory. What can we learn from the best teachers on the front
A. Garc\'ıa Frey, G. Calvary, and S. Dupuy-Chessa. Proceedings of the 2Nd ACM SIGCHI Symposium on Engineering Interactive Computing Systems, page 41--46. New York, NY, USA, ACM, (2010)