Validating and Extending Semantic Knowledge Bases using Video Games with a Purpose Daniele Vannella author David Jurgens author Daniele Scarfini author Domenico Toscani author Roberto Navigli author 2014-06 text Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers) Kristina Toutanova editor Hua Wu editor Association for Computational Linguistics Baltimore, Maryland conference publication vannella-etal-2014-validating 10.3115/v1/P14-1122 https://aclanthology.org/P14-1122/ 2014-06 1294 1304