@techreport {275, title = {Challenge Evaluation Report }, number = {D5.2}, year = {2013}, month = {December}, type = {Project deliverable}, url = {http://www.bioasq.org/sites/default/files/PublicDocuments/BioASQ_D5.2-ChallengeEvaluation_final_0.pdf}, author = {Prodromos Malakasiotis and Ion Androutsopoulos and Ioannis Pavlopoulos} }