Detection of Users Suspected of Pretending to Be Other Users in a Community Site by Using Messages Submitted to Non-Target Categories Naoki Ishikawa author Ryo Nishimura author Yasuhiko Watanabe author Masaki Murata author Yoshihiro Okada author 2010-11 text Proceedings of the 24th Pacific Asia Conference on Language, Information and Computation 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 ishikawa-etal-2010-detection-users https://aclanthology.org/Y10-1073/ 2010-11 637 644