About Umemoto, Kazutoshi
About Kyoto University
About Umemoto, Kazutoshi
About University of Tokyo, National Institute of Information and Communications Technology
About Yamamoto, Takehiro
About Kyoto University
About Tanaka, Katsumi
About Kyoto University
About SIGIR 2016 - Proceedings of the 39th International ACM SIGIR Conference on Research and Development in Information Retrieval