anomaly n. 1.不规则,反常(现象),异常,破格。 2.畸形物。 【天文学】近点角〔指行星偏离近日点的角度距离〕。 the anomaly of English spelling 英语拼写法的不规则。 gravity anomaly 【物理学】重力异常。 A harelipped monkey is an anomaly. 豁嘴的猴子是异常的东西。
( 3 ) aiming at the deficiency of present methods of network traffic anomaly , this paper proposes a new scale - adaptive detection mechanism . by means of wavelet packet decomposition , our method has the same detective ability to middle and high frequency as well as low frequency anomaly ; by means of reconstruct the wavelet packet 该方法利用层叠模型从本质上体现流量性质的特点,选择用多分辨分析( mra )和小波变换模极大( wtmm )估计层叠模型的判定条件作为检测依据,通过对拟合曲线误差的估计来判定异常的发生。