WorksheetsScenario Review and Threshold Tuning - 2021.11 Class (Final)
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Which of the following is true about ATL and BTL?
a)
Above-the-line test can reveal new true positive alert
b)
Below-the-line test involve human decision on whether alert is a true positive
c)
Both ATL and BTL can be done automatically
2.
Which of the following is NOT the tuning Objective?
a)
Increase Productivity of Alerts
b)
Increase accuracy of Alerts
c)
Increase amount of Alerts
d)
Meet Compliance requirement
3.
Which is the rate to measure Type I error?
a)
Precision Rate
b)
Recall Rate
c)
Accuracy Rate
d)
Return Rate
4.
What is a benefit of data driven method for customer segmentation?
a)
Implementation effort is low
b)
It always give more accurate result
c)
It takes out bias of domain expert
d)
Required data may not exist
5.
What distribution does a parameter variable (numeric variable that is compared against threshold for alert condition) usually follows?
a)
Binomial distribution
b)
Normal distribution
c)
Uniform distribution
d)
Log normal distribution
6.
If a parameter variable (numeric variable that is compared against threshold for alert condition) distribution has multiple peaks, which of the following best describes the situation?
a)
The contributing customers may contain multiple heterogenous groups that may better be further split for customer segments
b)
A point between the peaks is a good candidate for optimal threshold
c)
There is data quality issue that should first be tackled before analysis
d)
The peak with highest value is the threshold we are looking for
7.
Which of the following is not considered in threshold setting?
a)
Risk level of the customer
b)
Customer segmentation
c)
Alert investigation process
d)
Transaction type
8.
Which of the following is least important in a scenario review report?
a)
Alert Generation Process Performance
b)
Scenario Review Results
c)
Recommendations
d)
Scenario Review Approach
9.
If a scenario gives no alert in past 4 months, the following should be examined except for __ ?
a)
Is the minimum aggregate amount threshold set too high?
b)
Overall number of transaction of the transaction type in the financial institute
c)
Customers of the customer segment rarely perform the type of transaction in concern?
d)
Seasonal factor
10.
If a threshold is at 98%ile of population, what does it mean?
a)
For this parameter in concern, current scenario configuration covers top 2% of population
b)
Threshold is 2% lower than the maximum value
c)
98% of population is eligible for alert for this alert condition
d)
If threshold value is increased by 2%, the whold population will be covered
11.
Which statistical measure is describing the distribution boundries?
a)
Skewness
b)
Kurtosis
c)
Range
d)
Mean
12.
If we want to increase the scenario productivity by significantly raising the threshold value, which of the following is most likely to occur?
a)
Alert volume decreases.
b)
Type I error rate increases.
c)
Type II error rate decreases.
d)
All of the above
13.
The distribution of transactions amount usually behaves as:
a)
Negatively skewed
b)
Almost no skewness
c)
Positively skewed
d)
Multiple peaks
14.
Comparing with lower risk segment, high risk segment of the same scenario usually has:
a)
Higher thresholds and more alerts generated
b)
Lower thresholds and more alerts generated
c)
Higher thresholds, but no. of alerts generated varies
d)
Lower thresholds, but no. of alerts generated varies
15.
Which of the following is common data-driven segmentation method?
a)
S-means
b)
Clustering
c)
Expert analysis
d)
All of the above
16.
Which of the following is/are common elements of anomaly detection?
a)
Statistical Outlier
b)
Known Abnormal Behavior
c)
Known risks
d)
All of the above
100 %
