Classummary: Introducing Discussion Summarization to Online Classrooms Liang Zhou author Erin Shaw author Chin-Yew Lin author Eduard Hovy author 2005-10 text Proceedings of HLT/EMNLP 2005 Interactive Demonstrations Donna Byron editor Anand Venkataraman editor Dell Zhang editor Association for Computational Linguistics Vancouver, British Columbia, Canada conference publication zhou-etal-2005-classummary https://aclanthology.org/H05-2003/ 2005-10 4 5