Masayuki Nakao Kensuke Tsuchiya Yoshiaki Harita Kenji Iino Hiroshi Kinukawa Satoshi Kawagoe Yuji Koike Akihiko Takano Extracting Failure Knowledge with Associative Search. 269-276 2007 JSAI http://dx.doi.org/10.1007/978-3-540-78197-4_25 conf/jsai/2007 db/conf/jsai/jsai2007.html#NakaoTHIKKKT07