Data Mining Data mining is the process of semi-automatically analyzing large databases to find useful patterns Prediction based on past history Predict if a credit card applicant poses a good credit risk,based on some attributes(income,job type,age,..and past history Predict if a pattern of phone calling card usage is likely to be fraudulent Some examples of prediction mechanisms: Classification Given a new item whose class is unknown,predict to which class it belongs Regression formulae Given a set of mappings for an unknown function,predict the function result for a new parameter value Database System Concepts-6th Edition 20.11 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 20.11 ©Silberschatz, Korth and Sudarshan th Edition Data Mining Data mining is the process of semi-automatically analyzing large databases to find useful patterns Prediction based on past history Predict if a credit card applicant poses a good credit risk, based on some attributes (income, job type, age, ..) and past history Predict if a pattern of phone calling card usage is likely to be fraudulent Some examples of prediction mechanisms: Classification  Given a new item whose class is unknown, predict to which class it belongs Regression formulae  Given a set of mappings for an unknown function, predict the function result for a new parameter value