The role of named entities in Web People Search Javier Artiles author Enrique Amigó author Julio Gonzalo author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication artiles-etal-2009-role https://aclanthology.org/D09-1056/ 2009-08 534 542