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Extract-Transform-Loading (ETL) tools integrate data from source side to target in building data warehouse. However data structure and semantic heterogeneity exits widely in the enterprise information systems. On the purpose of eliminate data heterogeneity so as to construct data warehouse, this paper introduces domain ontology into ETL process of finding the data sources, defining the rules of data...
Standardization is a basic principle to design the relational database, which guarantees the revision of data structure and the quality of reorganization, but when referring to data mining system, anti-standardization is needed for data warehouse design. This paper discusses the necessity of anti-standardization and the specific design methods. With the development of data mining application, the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.