ISDS 2001 : ISDS2001 EXAM4 STUDY GUIDE
15 Mar 2019
School
Department
Course
Professor
Document Summary
Definitions/characteristics/benefits of data mining: data mining- use of statistical/mathematical/artificial intelligence to discover patterns/gain knowledge from large sets of data extraction & Used for categorical data: regression analysis, discriminant analysis, regression exact measurement of the temperature 98 deg. , clusters partitions data into segments based on similar characteristics; Variances: linear regression analysis, outcomes (y) are numeric, predictors (x) are all numeric with normal distributions and equal. Making: maintenance strategy model may become less effective over time depending on changes in the business environment --- must be able to reconfigure model as needed to provide on-going accurate results. Refer to sample test --- know all statistical calculations from notes. Promotion: amazon customer who buys book a will also buy book b --- (cross selling) Windows is different than the window on a house: calculate weights of words based on frequency of occurrence, tf factor measures the number of times a word appears in a document, know how to calculate tf factor.
