Semantic enrichment of journal articles using chemical named entity recognition Colin R Batchelor author Peter T Corbett author 2007-06 text Proceedings of the 45th Annual Meeting of the Association for Computational Linguistics Companion Volume Proceedings of the Demo and Poster Sessions Sophia Ananiadou editor Association for Computational Linguistics Prague, Czech Republic conference publication batchelor-corbett-2007-semantic https://aclanthology.org/P07-2012/ 2007-06 45 48