MedEval–six test collections in one Karin Friberg Heppin author 2009-05 text Proceedings of the 17th Nordic Conference of Computational Linguistics (NODALIDA 2009) Kristiina Jokinen editor Eckhard Bick editor Northern European Association for Language Technology (NEALT) Odense, Denmark conference publication friberg-heppin-2009-medeval https://aclanthology.org/W09-4632/ 2009-05 223 226