Why Data Mining? The Explosive Growth of Data: from terabytes to petabytes Data collection and data availability Automated data collection tools, database systems, Web computerized society Major sources of abundant data Business: Web, e-commerce transactions, stocks, Science: Remote sensing bioinformatics, scientific simulation Society and everyone: news, digital cameras, YouTube We are drowning in data, but starving for knowledge Necessity is the mother of invention"-Data mining-Automated analysis of massive data sets11 Why Data Mining? ◼ The Explosive Growth of Data: from terabytes to petabytes ◼ Data collection and data availability ◼ Automated data collection tools, database systems, Web, computerized society ◼ Major sources of abundant data ◼ Business: Web, e-commerce, transactions, stocks, … ◼ Science: Remote sensing, bioinformatics, scientific simulation, … ◼ Society and everyone: news, digital cameras, YouTube ◼ We are drowning in data, but starving for knowledge! ◼ “Necessity is the mother of invention”—Data mining—Automated analysis of massive data sets