He leads sentiment analysis work as one of co-organizers in NTCIR multilingual opinion analysis task. He has received multiple awards for his research work including IPSJ Yamashita SIG Research Award and CEA 2014 Best Paper Award. He leads Japanese information access community as IPSJ SIG-IFAT Chair and as Co-Chair of Editorial Board of IPSJ Transactions on Databases. He also works as an Expert in ISO/IEC JTC 1/WG11 smart cities. He is working as a research visitor at National University of Singapore this year.