Dipankar Das author Sivaji Bandyopadhyay author 2010-11 text Ryo Otoguro editor Kiyoshi Ishikawa editor Hiroshi Umemoto editor Kei Yoshimoto editor Yasunari Harada editor Institute of Digital Enhancement of Cognitive Processing, Waseda University Tohoku University, Sendai, Japan conference publication das-bandyopadhyay-2010-finding https://aclanthology.org/Y10-1071/ 2010-11 621 628