Mother of Invention心 Motivation: Necessity the o Data explosion problem: from terabytes to petabytes Data collection and data availabi 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, o We are drowning in data, but starving for knowledge!9 Motivation: “Necessity is the Mother of Invention” Data explosion problem : 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, We are drowning in data, but starving for knowledge!