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IBM SPSS Modeler Professional v2 Sample Questions:
1. Which statement is correct regarding the Sample node dialog shown below?
A) It will select approximately 60% of the records. That is, each record will have a 60% probability of being selected.
B) It will select every 60th record from the data.
C) It will always draw the same 60% of the records each time this Sample node is run.
D) It will randomly select exactly 60% of all the records.
2. Which key items must be identified before a data mining project is started? (Choose three.)
A) A business problem or question
B) Data quality problems
C) Available expertise on the data and business
D) Available data
3. What are the advantages of pruning Decision Tree models? (Choose three.)
A) Pruning can help simplify the tree.
B) Pruning can make the tree easier to interpret.
C) Pruning can improve the generalization of the tree.
D) Pruning can increase the accuracy of the tree.
4. Which nodes are best suited for revealing relationships between categorical (nominal, ordinal) fields? (Choose two.)
A) Table node
B) Means node
C) Matrix node
D) Distribution node
5. In order to make Decision Tree models more general, avoid overfitting, and make the trees less complex, what would you need to change in the dialog below? (Choose two.)
A) Increase the pruning severity.
B) Increase the Minimum records per child branch.
C) Decrease the Minimum records per child branch.
D) Decrease the pruning severity.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A,C,D | Question # 3 Answer: A,B,C | Question # 4 Answer: C,D | Question # 5 Answer: A,B |
By Ulysses
