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Association Analysis: Basic Concepts and Algorithms

6 Association Analysis: Basic Concepts andAlgorithmsMany business enterprises accumulate large quantities of data from their day-to-day operations. For example, huge amounts of customer purchase data arecollected daily at the checkout counters of grocery stores. Table illustratesan example of such data, commonly known asmarket basket row in this table corresponds to a transaction, which contains a uniqueidentifier labeledTIDand a set of items bought by a given customer. Retail-ers are interested in analyzing the data to learn about the purchasing behaviorof their customers. Such valuable information can be used to support a vari-ety of business-related applications such as marketing promotions, inventorymanagement, and customer relationship chapter presents a methodology known asassociation analysis,which is useful for discovering interesting relationships hidden in large datasets.

Besides market basket data, association analysis is also applicable to other application domains such as bioinformatics, medical diagnosis, Web mining, and scientific data analysis. In the analysis of Earth science data, for example, ... The proof for this equation is left as an exercise to the readers (see Exercise 5 on page 405). Even for ...

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