________ is a type of model that is used to find a good enough solution, or the
ID: 3765495 • Letter: #
Question
________ is a type of model that is used to find a good enough solution, or the best solution among alternatives, using experimentation. Explain why you chose your word to this question.
3. A good question to ask with respect to the patterns/relationships that association rule mining can discover is "Are all association rules interesting and useful?" In order to ANSWER such a question, association rule mining uses two common metrics ________ and ________. After you choose the right answer, explain those why you think they approach to this question. (About 2-3 paragraphs)
4. All of the following are types of data generated through Web page visits except:
Select one and explain why you choose.
a. hyperlink analysis
b. metadata, such as page attributes, content attributes, and usage data
c. data stored in server access logs, referrer logs, agent logs, and client-side cookies
d. user profiles
5. By analyzing and learning from these large-scale patterns of movement, Sense Networks is now adapting this general technology to help consumers find people with similar interests. This application is called ________. Explain why you chose your word to this question.
6. Once data are entered into the warehouse, users cannot change or update the data. Obsolete data are discarded, and changes are recorded as new data. This ________ characteristic is one of the characteristics of data warehousing. Explain why you chose your word to this question. After you choose the word, discuss this question. (2-3 paragraphs).
7. The advantage of three-tier architecture for data warehousing is its separation of the functions of the data warehouse, which eliminates resource constraints and makes it possible to easily create data ________.
Select one and explain.
a. banks
b. cubes
c. bases
d. marts
8. The high cost of data warehouses limits their use to large companies. As an alternative, many firms use a lower-cost, scaled-down version of a data warehouse referred to as (an) ________.
Select one and explain.
a. independent data mart
b. data mart
c. operational data store
d. dependent data mart
9. The term business performance management (BPM) encompasses three key components, which include all of the following except:
Select one and explain.
a. A core set of processes, including financial and operational planning, modeling, analysis, and monitoring of key performance indicators (KPIs), linked to organizational strategy
b. Tools for businesses to define strategic goals and then measure and manage performance against those goals
c. A set of integrated, closed-loop management and analytic processes, supported by technology, that address financial as well as operational activities.
d. An enterprise-wide strategy that helps to optimize local business performance
10. The term data mining was originally used to ________.
Select one and explain.
a. All of the above
b. describe the analysis of huge datasets stored in data warehouses
c. describe the process through which previously unknown patterns in data were discovered
d. includes most forms of data analysis in order to increase sales
11. What is a major characteristic of data mining?
Select one and explain.
a. Because of the large amounts of data and massive search efforts, it is sometimes necessary to use serial processing for data mining.
b. Data are often buried within numerous small large databases, which sometimes contain data from several years.
c. The miner needs sophisticated programming skill.
12. What is an organization's valuable knowledge of its employees?
Select one and explain
a. Effective and efficient problem solving
b. corporate information
c. intellectual capital
d. active management
13. When DIRECTV decided to implement an active data warehouse solution, the goal of the new system was to send fresh data to the call center at least daily. Once the capabilities of the solutions became apparent, that goal:
Select one and explain.
a. increased to every 2 days to reduce maintenance costs.
b. dropped to fresh data of less than 15 minutes to improve responsiveness.
c. increased to every 5 days to reduce maintenance costs.
d. dropped to fresh data every 12 hours to improve responsiveness.
14. Which of the following is an evolving tool space that promises real-time data integration from a variety of sources, such as relational databases, Web services, and multidimensional databases?
Select one and explain.
a. Enterprise information integration (EII)
b. Information integration
c. Data management integration
d. SQL data integration
15. Which of the following packages are preprogrammed (sometimes called ready-made) models and optimization systems that sometimes serve as building blocks for other quantitative models?
Select one and explain.
a. Development tool
b. Quantitative software
c. Application
d. Qualitative software
16. Why will computers probably not be able to understand natural language the same way and with the same accuracy that humans do?
Select one and explain.
a. A true understanding of meaning requires extensive knowledge of a topic beyond what is in the words, sentences, and paragraphs.
b. The natural human language is too specific.
c. All of the above.
d. The part of speech depends only on the definition and not on the context within which it is used.
Explanation / Answer
3 Ans Support and confidence
4 Ans hyperlink analysis
5 Ans
6 Ans.
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