MIS CH 9

Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it?

publish results

________ is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics.

Cluster analysis

Which of the following statements is true of a data warehouse?

A data warehouse is larger than a data mart.

________ are reports produced when something out of predefined bounds occurs.

Exception reports

________ requires users to request business intelligence results.

Pull publishing

The results generated in the Map phase are combined in the ________ phase.

Reduce

________ reports are business intelligence documents that are updated at the time they are requested.

Dynamic

Which of the following statements is true of BigData?

BigData refers to data sets that are at least a petabyte in size.

Regression analysis is used in ________.

supervised data mining

Which of the following statements is true of Hadoop?

Hadoop is an open-source program that implements MapReduce.

________ refers to the level of detail represented by data.

Granularity

The more attributes there are in a sample data, the easier it is to build a model that fits the sample data, but that is worthless as a predictor. Which of the following best explains this phenomenon?

the curse of dimensionality

________ process operational and other data in organizations to analyze past performance and make predictions.

Business intelligence systems

The purpose of a ________ is to extract data from operational systems and other sources, clean the data, and store and catalog that data for processing by business intelligence tools.

data warehouse

________ techniques emerged from the combined discipline of statistics, mathematics, artificial intelligence, and machine-learning.

Data mining

A ________ is a facility for managing an organization's business intelligence data.

data warehouse

Which of the following refers to data in the form of rows and columns?

structured data

Problematic data are referred to as ________.

dirty data

________ is the process of obtaining, cleaning, organizing, relating, and cataloging source data.

Data acquisition

Which of the following statements is true of business intelligence (BI) publishing alternatives?

Publishing dynamic BI is more difficult than publishing static content.