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Describe the role of the simple split in estimating the accuracy of classification models.

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The simple split (or holdout or t...

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Understanding customers better has helped Amazon and others become more successful.The understanding comes primarily from


A) collecting data about customers and transactions.
B) developing a philosophy that is data analytics-centric.
C) analyzing the vast data amounts routinely collected.
D) asking the customers what they want.

E) B) and C)
F) A) and B)

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In the opening vignette,Cabela's uses SAS data mining tools to create ________ models to optimize customer selection for all customer contacts.

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All of the following statements about data mining are true EXCEPT


A) the process aspect means that data mining should be a one-step process to results.
B) the novel aspect means that previously unknown patterns are discovered.
C) the potentially useful aspect means that results should lead to some business benefit.
D) the valid aspect means that the discovered patterns should hold true on new data.

E) A) and D)
F) All of the above

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List five reasons for the growing popularity of data mining in the business world.

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.More intense competition at the global ...

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What does the robustness of a data mining method refer to?


A) its ability to predict the outcome of a previously unknown data set accurately
B) its speed of computation and computational costs in using the mode
C) its ability to construct a prediction model efficiently given a large amount of data
D) its ability to overcome noisy data to make somewhat accurate predictions

E) All of the above
F) A) and B)

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Because of its successful application to retail business problems,association rule mining is commonly called ________.

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market-bas...

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Describe cluster analysis and some of its applications.

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Cluster analysis is an exploratory data ...

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The ________ is the most commonly used algorithm to discover association rules.Given a set of itemsets,the algorithm attempts to find subsets that are common to at least a minimum number of the itemsets.

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In data mining,classification models help in prediction.

A) True
B) False

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