Makoto P. Kato, Ph.D. is associate professor at the Faculty of Library, Information and Media Science, University of Tsukuba in Japan. His research interests include information retrieval, web mining and machine learning. He has been recently working on entity-oriented search and statistical data search from the Web. He is currently organizing NTCIR-15 Data Search (https://ntcir.datasearch.jp), a shared task on ad-hoc retrieval for governmental statistical data.