FODFP-Stream computes the outlier measure through discovering and maintaining the frequent patterns dynamically, and can deal with the high dimensional categorical data streams effectively.

• 该算法通过动态发现和维护频繁模式来计算离群度；能够有效地处理高维类别属性数据流；并可进一步扩展到数值属性和混合属性数据流.