Course Concept Extraction in MOOCs via Embedding-Based Graph Propagation Liangming Pan author Xiaochen Wang author Chengjiang Li author Juanzi Li author Jie Tang author 2017-11 text Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Greg Kondrak editor Taro Watanabe editor Asian Federation of Natural Language Processing Taipei, Taiwan conference publication pan-etal-2017-course https://aclanthology.org/I17-1088/ 2017-11 875 884