Hi,
I am trying to evaluate EWMA using NAB.
I get some negative numbers in final_results.json
:
"EWMA": {
"reward_low_FN_rate": -239.29681425287356,
"reward_low_FP_rate": -897.695072875,
"standard": -404.6348765517242
}
I assumed nothing should perform worse than the “null”-detector.
Is this a proper “bad” result score or does it mean I am doing something wrong here.
Find my anomaly scores for EWMA (alpha=0.01
threshold=3.0
) here.
Thank you in advance for any hints.
BR
Evgenij