V-Measure: A Conditional Entropy-Based External Cluster Evaluation Measure Andrew Rosenberg author Julia Hirschberg author 2007-06 text Proceedings of the 2007 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning (EMNLP-CoNLL) Jason Eisner editor Association for Computational Linguistics Prague, Czech Republic conference publication rosenberg-hirschberg-2007-v https://aclanthology.org/D07-1043/ 2007-06 410 420