• Seigo Baba, Fujio Toriumi, Takeshi Sakaki, Kosuke Shinoda, Satoshi Kurihara,Kazuhito Kazama, Itsuki Noda, and Hirotada Ohashi, “Classification Method for Shared Information on Twitter Without Text Data”,The 3rd International Workshop on Social Web for Disaster Management (SWDM’15) (a Workshop of WWW’15 conference) ,May 2015, Florence, Italy.