DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If it only satisfies min ____ support
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If it only satisfies min ____ confidence
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If it satisfies both min ____ support and min ____ confidence
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There are other measures to check so
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Detailed explanation-1: -An association rule can be considered interesting if the items involved often occur together and there are suggestions that one of the sets might in some sense lead to the presence of the other set. The strength of an association rule can be measured by mathematical notions called: ‘support, ’ and ‘confidence.
Detailed explanation-2: -6.2. Once the frequent itemsets from transactions in a database D have been found, it is straightforward to generate strong association rules from them (where strong association rules satisfy both minimum support and minimum confidence).
Detailed explanation-3: -The confidence of an association rule is a percentage value that shows how frequently the rule head occurs among all the groups containing the rule body. The confidence value indicates how reliable this rule is.
Detailed explanation-4: -The confidence of an association rule is its strength or reliability. The confidence is defined as the percentage of transactions supporting the rule out of all transactions supporting the rule body. A transaction supports the rule body if it contains all the items of the rule body.