Exploring Correlation of Dependency Relation Paths for Answer Extraction Dan Shen author Dietrich Klakow author 2006-07 text Proceedings of the 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics Nicoletta Calzolari editor Claire Cardie editor Pierre Isabelle editor Association for Computational Linguistics Sydney, Australia conference publication shen-klakow-2006-exploring 10.3115/1220175.1220287 https://aclanthology.org/P06-1112/ 2006-07 889 896