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Building the Unstructured Data Warehouse: Architecture, Analysis, and Design by Krish Krishnan, W. H. Inmon

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Extracting, Transforming, and Loading Text[6]

At the heart of creating the unstructured data warehouse is the ability to integrate text using Textual Extract, Transform, and Load (ETL). It is by using textual ETL that unstructured text is turned into a database. Stated differently, with textual ETL, raw text goes in and a database that is able to be analyzed and used for decision making comes out. Textual ETL, then, is the technology that exists in order to do textual integration.

Figure 4.1 From raw text to the unstructured data warehouse

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Textual ETL has some important similarities and differences with traditional data warehouse ETL, discussed ...

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