Data Mining and OLAP

• The Query formulation problem
• Many interesting analysis queries are difficult to formulate as DB queries
• Examples:
• which records represent fraudulent transactions?
• which households are likely to prefer a Ford over a Toyota?
• Who’s a good credit risk in my customer DB?
• Yet database contains the information
• good/bad customer, profitability
• did/did not respond to mailout/survey/...

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