Approximate Matching for Evaluating Keyphrase Extraction Torsten Zesch author Iryna Gurevych author 2009-09 text Proceedings of the International Conference RANLP-2009 Galia Angelova editor Ruslan Mitkov editor Association for Computational Linguistics Borovets, Bulgaria conference publication zesch-gurevych-2009-approximate https://aclanthology.org/R09-1086/ 2009-09 484 489