Discuss the relationship between data warehousing and data mining.
What will be an ideal response?
One of the major challenges for organizations seeking to exploit data mining is identifying
suitable data to mine. Data mining requires a single, separate, clean, integrated, and self-
consistent source of data. A data warehouse is well equipped for providing data for mining for
the following reasons:
? Data quality and consistency is a prerequisite for mining to ensure the accuracy of the
predictive models. Data warehouses are populated with clean, consistent data.
? It is advantageous to mine data from multiple sources to discover as many
interrelationships as possible. Data warehouses contain data from a number of sources.
? Selecting the relevant subsets of records and fields for data mining requires the query
capabilities of the data warehouse.
? The results of a data mining study are useful if there is some way to further investigate
the uncovered patterns. Data warehouses provide the capability to go back to the data
source.
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