@InProceedings{dang-lin:2007:ACLMain, author = {Dang, Hoa Trang and Lin, Jimmy}, title = {Different Structures for Evaluating Answers to Complex Questions: Pyramids Won't Topple, and Neither Will Human Assessors}, booktitle = {Proceedings of the 45th Annual Meeting of the Association of Computational Linguistics}, month = {June}, year = {2007}, address = {Prague, Czech Republic}, publisher = {Association for Computational Linguistics}, pages = {768--775}, url = {http://www.aclweb.org/anthology/P/P07/P07-0097} }