Stream-AD / MIDAS

Anomaly Detection on Dynamic (time-evolving) Graphs in Real-time and Streaming manner. Detecting intrusions (DoS and DDoS attacks), frauds, fake rating anomalies.

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How to decide whther edge is anomalous ?

rohitnitk opened this issue · comments

In the Algorithm, how (on what basis ) you are deciding whether an edge is anomalous or not, given the anomaly score?
(I've read the paper but couldn't find it )

The algorithm currently only outputs anomaly scores and not a binary value whether an edge is anomalous. You can either consider edges with high scores as anomalous or have a threshold based on domain expertise and consider edges having scores higher than that threshold as anomalous.

In the paper, we calculate the ROC-AUC using the anomaly scores generated by the algorithm and the ground truth available.