Question Classification using HDAG Kernel Jun Suzuki author Hirotoshi Taira author Yutaka Sasaki author Eisaku Maeda author 2003-07 text Proceedings of the ACL 2003 Workshop on Multilingual Summarization and Question Answering Association for Computational Linguistics Sapporo, Japan conference publication suzuki-etal-2003-question 10.3115/1119312.1119320 https://aclanthology.org/W03-1208/ 2003-07 61 68