5. The method of claim 1 , further comprising: calculating scores of minimum distort of features for each of the links in a particular time frame of the plurality of time frames; and identifying extreme values among the scores of minimum distort as at least some of the outliers.
5. The method of claim 1 , further comprising: calculating scores of minimum distort of features for each of the links in a particular time frame of the plurality of time frames; and identifying extreme values among the scores of minimum distort as at least some of the outliers. 6. The method of claim 5 , wherein the calculating the scores of minimum distort includes computing an Euclidean distance to calculate a difference between each feature of two time frames of the plurality of time frames, wherein the two time frames pertain to a same link.