Databricks Certified Machine Learning Professional — Question 71

A machine learning engineer has detected that concept drift is occurring in a production machine learning application.

Which result is the impact of concept drift?

Answer options

• A. The model's latency will decrease
• B. The model's efficacy will increase
• C. The model's latency will increase
• D. The model's efficacy will decrease

Correct answer: D

Explanation

Concept drift refers to the change in the statistical properties of the target variable, which can lead to a decrease in the model's accuracy or efficacy. As the model's training data becomes less representative of the current data, its ability to make accurate predictions diminishes, resulting in decreased efficacy. The other options incorrectly suggest improvements in latency or efficacy, which do not occur due to concept drift.