Evaluation of Unsupervised Information Extraction Wei Wang author Romaric Besançon author Olivier Ferret author Brigitte Grau author 2012-05 text Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC’12) Nicoletta Calzolari editor Khalid Choukri editor Thierry Declerck editor Mehmet Uğur Doğan editor Bente Maegaard editor Joseph Mariani editor Asuncion Moreno editor Jan Odijk editor Stelios Piperidis editor European Language Resources Association (ELRA) Istanbul, Turkey conference publication wang-etal-2012-evaluation https://aclanthology.org/L12-1313/ 2012-05 552 558