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BACS 300 Chapter 9

Business Intelligence and Information Systems for Decision Making

petabyte 10^15 bytes
exabyte 10^18 bytes
business intelligence (BI) information that results from the processing of operational data to create information that exposes patterns, relationships, and trends of importance to the organization
business intelligence (BI) system a system that provides the right information, to the right user, at the right time. A tool produces the info but a system makes it right
reporting systems a system that creates information from disparate sources and delivers that information to the proper users on a timely basis
data mining systems IS that processes data using sophisticated statistical techniques to find patterns and relationships that cannot be found by simpler operations
market-based analysis data mining technique for determining sales patterns. shows the products that customers tend to buy together
knowledge management systems IS for storing and retrieving organizational knowledge, whether that knowledge is in the form of data, documents, or employee know-how
Expert systems knowledge-sharing system that is created by interviewing experts in a given business domain and codifying the rules used by those experts
dirty data problematic data
granularity level of detail in data
clickstream data e-commerce data that describes a customer's clicking behavior. Includes everything the customer does at the Web site
curse of dimensionality the more attributes there are, the easier it is to build a data model that fits the sample data but is useless as a predictor
data mining the application of statistical techniques to find patterns and relationships among data
unsupervised data mining data mining whereby the analysts do not create a model or hypothesis before running the analysis. Create hypothesis after results are found
cluster analysis unsupervised data mining technique whereby statistical techniques are used to ID groups of entities with similar characteristics
supervised data mining data mining where miners develop a model prior to the analysis and statistical techniques to data to estimate values of the parameters of the model
regression analysis linear estimator
neural networks supervised data mining technique used to predict values and make classifications
Created by: 1229955762



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