Exam 8: E-Commerce and Web 2.0

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Sales transactions data is coarse data.

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With ___________ ,analysts do not create a model or hypothesis before running the analysis.

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An RFM analysis is a

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Systems that focus on making data collected in OLTP useful for decision making are often referred to as decision support systems.

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Knowledge discovery in databases is the purpose of data mining.

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The purpose of a business intelligence system is to provide the right information to the right people at the right

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What is the purpose of business intelligence? What kind of BI tools are there?

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The total amount of data generated by 2010 is estimated to be

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A data -mining system uses statistical analysis to enable banking personnel to assess new loan applications.

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The abundance of information is sometimes called

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Problematic data are termed

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In an OLAP system a measure is (are)

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ATMs are an example of online transaction processing (OLTP)systems.

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Which of the following is a synonym for data -mining?

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_________integrate data from multiple sources,and process those data by sorting,grouping, summing,averaging,and comparing.

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Data -mining techniques include

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The purpose of (a)__________is to extract and clean data from operational systems and other sources.

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An OLAP report has

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Which of the following is an assumption about information systems that Ackoff talked about?

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The "curse of dimensionality" means the more attributes there are in the data warehouse the __________ it is to build a model that fits them.

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