%0 Conference Proceedings %T Sensitivity of IR systems Evaluation to Topic Difficulty %A Eguchi, Koji %A Kuriyama, Kazuko %A Kando, Noriko %Y González Rodríguez, Manuel %Y Suarez Araujo, Carmen Paz %S Proceedings of the Third International Conference on Language Resources and Evaluation (LREC’02) %D 2002 %8 May %I European Language Resources Association (ELRA) %C Las Palmas, Canary Islands - Spain %F eguchi-etal-2002-sensitivity %U http://www.lrec-conf.org/proceedings/lrec2002/pdf/203.pdf