Exploring Syntactic Features for Relation Extraction using a Convolution Tree Kernel Min Zhang author Jie Zhang author Jian Su author 2006-06 text Proceedings of the Human Language Technology Conference of the NAACL, Main Conference Robert C Moore editor Jeff Bilmes editor Jennifer Chu-Carroll editor Mark Sanderson editor Association for Computational Linguistics New York City, USA conference publication zhang-etal-2006-exploring https://aclanthology.org/N06-1037/ 2006-06 288 295