Aditya G. Parameswaran, Hector Garcia-Molina. Recommendations with prerequisites. In Lawrence D. Bergman, Alexander Tuzhilin, Robin D. Burke, Alexander Felfernig, Lars Schmidt-Thieme, editors, Proceedings of the 2009 ACM Conference on Recommender Systems, RecSys 2009, New York, NY, USA, October 23-25, 2009. pages 353-356, ACM, 2009. [doi]
Abstract is missing.