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Data Mining Association Analysis: Basic Concepts and ...

Data Mining Association Analysis: Basic Concepts and AlgorithmsLecture Notes for Chapter 6 Introduction to Data MiningbyTan, Steinbach, Kumar Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 1 Tan,Steinbach, Kumar Introduction to Data Mining 4/18/2004 2 Association Rule MiningOGiven a set of transactions, find rules that will predict the occurrence of an item based on the occurrences of other items in the transactionMarket-Basket transactionsTID Items 1 Bread, Milk 2 Bread, Diaper, Beer.

Association Rule Mining Task OGiven a set of transactions T, the goal of association rule mining is to find all rules having – support ≥minsup threshold – confidence ≥minconf threshold OBrute-force approach: – List all possible association rules – Compute the support and confidence for each rule – Prune rules that fail the minsup ...

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