Document Expansion Based on WordNet for Robust IR Eneko Agirre author Xabier Arregi author Arantxa Otegi author 2010-08 text Coling 2010: Posters Chu-Ren Huang editor Dan Jurafsky editor Coling 2010 Organizing Committee Beijing, China conference publication agirre-etal-2010-document https://aclanthology.org/C10-2002/ 2010-08 9 17