P. Li, T. Hastie, and K. Church. Proceedings of the 12th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 287--296. New York, NY, USA, ACM, (2006)
A. Gorban, and A. Zinovyev. Principal Manifolds for Data Visualization and Dimension Reduction, volume 58 of Lecture Notes in Computational Science and Enginee, Springer Berlin Heidelberg, (2008)
B. Sarwar, G. Karypis, J. Konstan, and J. Riedl. In Proceedings of The 6th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Workshop on Web Mining for E--Commerce -- Challenges and Opportunities (WEBKDD'00), (August 2000)
H. Song, T. Cho, V. Dave, Y. Zhang, and L. Qiu. Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference, page 322--335. ACM, (2009)
D. Jurgens, and K. Stevens. Proceedings of the 5th International Workshop on Semantic Evaluation, page 359--362. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)
P. Kanerva, J. Kristofersson, and A. Holst. Proceedings of the 22nd Annual Conference of the Cognitive Science Society, 1036, Erlbaum, New Jersey, (2000)