What is an advantage of wrapper feature selection techniques?
Choose the correct answer.
A
They are robust to overfitting.
B
They allow the detection of the possible interactions between variables.
C
They are usually less computationally intensive than filters.
D
They apply a statistical measure to assign a scoring to each feature.
Q3.
Which of the following tasks are included in the Data Preparation phase of the cross-industry standard process for data mining (CRISP-DM) methodology?
There are 2 correct answers.
A
Integrate data
B
Clean data
C
Generate test design
D
Produce project plan
E
Assess situation
Q4.
Which are characteristics of ordinal variables?
There are 2 correct answers.
A
They are categorical.
B
The difference between their values is important.
C
The categories are ordered.
D
They accommodate basic arithmetic operations.
Q5.
Which of the following is a characteristic of continuous variables?
Choose the correct answer.
A
They are qualitative.
B
They are real numbers.
C
They are discrete.
D
They are categorical.
Q6.
Where is the "reference" date usually positioned to move data sets easily through time?
Choose the correct answer.
A
At the end of the latency period
B
At the end of the target period
C
At the end of the history period
D
At the beginning of the history period
Q7.
Which are methods of dividing data into bins?
There are 2 correct answers.
A
Equal Frequency Binning
B
Equal Width Binning
C
Random Sample Binning
D
Sequential Class Binning
Q8.
Which of the following could be an entity in a predictive model?
There are 3 correct answers.
A
A store
B
A customer
C
A customer's age
D
A count of the number of transactions a customer has made
E
A product
Q9.
In which task of the Data Preparation phase of the cross-industry standard process for data mining (CRISP-DM) methodology do you create data aggregations?
Choose the correct answer.
A
Integrate data
B
Select data
C
Clean data
D
Construct data
Q10.
What question do you answer with a predictive model?