In online learning,abnormal learning behavior is difficult to be detected and corrected in time,which may lead to serious learning problems.Online abnormal learning behavior is diverse and uncertain,and difficult to be distinguished by rules.The Negative Selection Algor...MORE In online learning,abnormal learning behavior is difficult to be detected and corrected in time,which may lead to serious learning problems.Online abnormal learning behavior is diverse and uncertain,and difficult to be distinguished by rules.The Negative Selection Algorithm inspired from biological immune system to recog...