E11

Question 1

Area under the ROC curve

Answer 1

the probability that the model will rank a randomly chosen positive case higher than a negative case

Question 2

AUC is useful when

Answer 2

1. A single number is needed to summarize performance

OR

2. Nothing is known about the operating conditions

Question 3

Typical Business Intelligence (BI) stack

Answer 3

1. Data sources
2. Data movement, streaming engines
3. Data warehouse servers
4. Mid-tier servers
5. Front-end applications