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| Section | Weight | Objectives |
|---|---|---|
| Model Evaluation and Deployment | 5% | - Export and deploy models - Model comparison and selection - Model accuracy and performance metrics |
| Data Access and Source Nodes | 20% | - Variable types and measurement levels - Data preview and metadata inspection - Import data from files and databases |
| Data Exploration and Visualization | 15% | - Correlation and association analysis - Graph nodes: histograms, scatterplots, bar charts - Descriptive statistics and distributions |
| Modeling Techniques | 20% | - Classification and regression models - Clustering and segmentation - Association rules and sequence detection - Neural networks and decision trees |
| Data Preparation and Manipulation | 25% | - Merge and append datasets - Handling missing values and outliers - Record operations: select, sort, aggregate, sample - Field operations: derive, filter, reclassify, binning |
| Introduction to SPSS Modeler and CRISP-DM | 15% | - CRISP-DM methodology - Project and stream management - Modeler interface and workbench |
1. Which statement is correct regarding the Balance node shown below?
A) The sizes of the larger two groups will be reduced to equal the size of the smallest group.
B) The "bad profit" category is the smallest group.
C) The sizes of the first and third groups will be increased.
D) The result group sizes will always be the same each time the Balance node is run.
2. What is the function of the Ensemble node?
A) The development of additional fields to improve accuracy
B) Transforming the existing values to improve accuracy
C) Combining models together to produce higher accuracy
D) None of the above
3. Examine the Matrix table shown below which relates the fields churn (whether a customer will churn) to agecat (Age groups).
Based on the table, which statements are accurate? (Choose two.)
A) Measured by the Chi-square, this is a weak relationship.
B) 42.283% of the 18-24 year olds will churn.
C) Older age groups are less likely to churn than the younger ages.
D) 10.768% of those that churn are over 65 years of age.
4. In the Gains Chart displayed below, what does the $BEST-CHURNED line represent?
A) The theoretically best model to predict the field CHURNED
B) The best model for cases in the training partition to predict the field CHURNED
C) The best current model to predict the field CHURNED
D) None of the above
5. Which stage of the CRISP-DM (Cross Industry Standard Process for Data Mining) methodology is the most time consuming?
A) Data Preparation
B) Evaluation
C) Modeling
D) Business Understanding
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: B,C | Question # 4 Answer: A | Question # 5 Answer: A |
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