Secondly, RX, GMRF and SEM, three representational algorithms of anomaly detection are studied.

• 其次,研究了具有代表性的三种奇异检测算法:RX算法、基于高斯马尔可夫随机场模型(GMRF)的检测算法和基于随机最大期望(SEM)分类的检测算法。