Exam 9: Business Intelligence and Information Systems for Decision Making

In unsupervised data mining ________.

A petabyte consists of ________ bytes.

Problematic data are termed as ________.

A ________ is a company that obtains data from public and private sources and stores,combines,and publishes it in sophisticated ways.

A type written page is about 2 ________.

Data-mining systems integrate data from multiple sources,processing it by sorting,grouping,and averaging,and delivering reports on the results.

Generally,it is better to have data that is too coarse a granularity than data that is too fine.

________ data is highly summarized.

________ systems improve decision making by using the discovered patterns and relationships to anticipate events or to predict future outcomes.

A terabyte is larger than a petabyte in terms of computer storage.

________ is the application of statistical techniques to find patterns and relationships among data and to classify and predict.

With ________ data mining,data miners develop a model prior to the analysis and apply statistical techniques to data to estimate parameters of the model.

Raw operational data is seldom suitable for more sophisticated reporting or data mining.

Data warehouses cannot purchase external data from outside resources.

What is the difference between a megabyte and a gigabyte?

An organization's data warehouse DBMS cannot be different from the organization's operational DBMS.

Decision tree analysis is a technique used by ________ systems.

________ compute(s)the correlation of items on past orders to determine items that are frequently purchased together.

KDD is synonymous with data mining.

Generally,it is better to have data that is ________ than data that is ________.