Information Extraction for Supporting a Learner's Efforts to Recognize What the Learner did not Understand.

Naoki Isogai Ryo Nishimura Yasuhiko Watanabe Yoshihiro Okada Information Extraction for Supporting a Learner's Efforts to Recognize What the Learner did not Understand. 371-374 2009 CSEDU (1) conf/csedu/2009-1 db/conf/csedu/csedu2009-1.html#IsogaiNWO09