[R] A Flaw in a SIGKDD Paper renders it Meaningless (time series anomaly detection)

Dear Colleagues.

I spotted a major flaw in a 2022 SIGKDD Paper. I believe that it renders the entire paper meaningless. I have no ill will against these authors or SIGKDD, but I think it is worth pointing this problem out to help prevent others making the same mistake \[a\].

(I don’t want to embarrass anyone, so I am going to slightly change their text below, so it is not trivially googleable)

The authors are doing time series anomaly detection. …

anomaly anomaly detection detection machinelearning paper series time time series