Evaluating Salience Metrics for the Context-Adequate Realization of Discourse Referents Christian Chiarcos author 2011-09 text Proceedings of the 13th European Workshop on Natural Language Generation Claire Gardent editor Kristina Striegnitz editor Association for Computational Linguistics Nancy, France conference publication chiarcos-2011-evaluating https://aclanthology.org/W11-2805/ 2011-09 32 43