Ulrike Padó. Question Difficulty - How to Estimate Without Norming, How to Use for Automated Grading. In Joel R. Tetreault, Jill Burstein, Claudia Leacock, Helen Yannakoudakis, editors, Proceedings of the 12th Workshop on Innovative Use of NLP for Building Educational Applications, BEA@EMNLP 2017, Copenhagen, Denmark, September 8, 2017. pages 1-10, Association for Computational Linguistics, 2017. [doi]
Abstract is missing.