Database Transformation to Build Dataset for Generation of Decision Tree and Extended ER Model

Provided by: International Journal of Computer Applications
Topic: Data Management
Format: PDF
In data mining project, most of the time consuming task is to prepare a required data set for data mining analysis because in general the relational database has collection of tables and views that must be joined, aggregated and transformed in order to build the required dataset. As result, most of the complex SQL queries are written multiple times independently from each other and in a disorganized manner. Therefore, the database grows with many tables and views that are not present as entities in the ER model.

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