Which technique should you use?

You need to implement a new cost factor scenario for the ad response models as illustrated in the performance curve exhibit.

Which technique should you use?
A . Set the threshold to 0.5 and retrain if weighted Kappa deviates +/- 5% from 0.45.
B . Set the threshold to 0.05 and retrain if weighted Kappa deviates +/- 5% from 0.5.
C . Set the threshold to 0.2 and retrain if weighted Kappa deviates +/- 5% from 0.6.
D . Set the threshold to 0.75 and retrain if weighted Kappa deviates +/- 5% from 0.15.

View Answer

Answer: A

Explanation:

Scenario:

Performance curves of current and proposed cost factor scenarios are shown in the following diagram:

The ad propensity model uses a cut threshold is 0.45 and retrains occur if weighted Kappa deviated from 0.1 +/- 5%.