This is the companion website for the following book.
Christopher D. Manning, Prabhakar Raghavan and Hinrich Schütze, Introduction to Information Retrieval, Cambridge University Press. 2008.
Short introduction to Vector Space Model (VSM) In information retrieval or text mining, the term frequency - inverse document frequency also called tf-idf, is
E. Voorhees. Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval, Seite 171--180. New York, NY, USA, ACM, (1993)
M. Sanderson. Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval, Seite 142--151. New York, NY, USA, Springer-Verlag New York, Inc., (1994)
H. Schütze, und J. Pedersen. Proceedings of the 4th Annual Symposium on Document Analysis and Information Retrieval, Seite 161--175. Las Vegas, USA, (1995)
A. Al-Maskari, M. Sanderson, und P. Clough. Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval, Seite 773--774. New York, NY, USA, ACM, (2007)