Guibing Guo, Mojisola Erdt, Bu-Sung Lee. A Hybrid Recommender System based on Material Concepts with Difficulty Levels. In 21st International Conference on Computers in Education, ICCE 2013, Denpasar, Bali, Indonesia, November 18-22, 2013. Asia-Pacific Society for Computers in Education, 2013. [doi]
Abstract is missing.