Data Mining for Business Analytics: Concepts, Techniques, and Applications with XLMiner

3rd Edition

ISBN: 9781118729274

Author: Galit Shmueli, Peter C. Bruce, Nitin R. Patel

Publisher: WILEY

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Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of …

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Textbook Question

Chapter 5, Problem 4P

Consider Figure 5.16, the decile-wise lift chart for the transaction data model, applied to new data.

Chapter 5, Problem 4P, Consider Figure 5.16, the decile-wise lift chart for the transaction data model, applied to new

a. Interpret the meaning of the first and second bars from the left.

b. Explain how you might use this information in practise.

c. Another analyst comments that you could improve the accuracy of the model by classifying everything as nonfraudulent. If you do that, what is the error rate?

d. Comment on the usefulness, in this situation, of these two metrics of model performance (error rate and lift).

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Chapter 5, Problem 3P

Chapter 5, Problem 5P

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ER modeling is one approach in creating a data model. There are several approaches in creating a data model (bottom up, top down, inside out, and mix). 1. explain each of these approaches!2. Then explain when we use top down, bottom up, inside out and mix? what is the function of each of the approaches?

We need to first make some adjustments to certain variables in Tableau and better understand the difference between Dimensions and Measures. Dimensions (shown as blue variable names) are normally attributes about certain transactions that can't be summed or otherwise quantified (e.g., dates, product numbers, invoice numbers, etc.), Measures (shown in green variable names), on the other hand, are normally the outcome variables we are most interested in (e.g., invoice total, quantity shipped, etc.). Sometimes, Tableau misclassifies these variables and we need to make changes before we can continue. In the shipping file, Tableau has classified Customer No. and Invoice No. as Measures instead of Dimensions. We need to set both of these as dimensions. • Right-click on Customer Number and press "Convert to Dimension." • Repeat the previous step for Invoice Number. What other "number" has been imported as a Measure instead of a Dimension? Please change it to a Measure Dimension using the…

In the context of the typical approach for strength prediction, discuss the value that a data model brings to the table.

Chapter 5 Solutions

Data Mining for Business Analytics: Concepts, Techniques, and Applications with XLMiner

Ch. 5 - Prob. 1P Ch. 5 - Prob. 2P Ch. 5 - Prob. 3P Ch. 5 - Consider Figure 5.16, the decile-wise lift chart...Ch. 5 - Prob. 5P Ch. 5 - Prob. 6P Ch. 5 - Prob. 7P

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