Data mining is the process of discovering meaningful new correlations, patterns and trends by sifting through large amounts of data stored in repositories, using pattern recognition technologies as well as statistical and mathematical techniques. Data mining is the analysis of (often large) observational data sets to find unsuspected relationships and to summarize the data in [...]
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Data warehouses exist to facilitate complex, data-intensive, and frequent adhoc queries. The data warehouse access component supports enhanced spreadsheet functionality, efficient query processing, structured and adhoc queries, data mining, and materialized views. These offer pre-programmed functionalities such as : – Roll-up : Data is summarized with increasing generalization. – Drill-down : Increasing levels of details [...] |
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