Apriori algorithm-find all frequent large itemsets, Database Management System

Your friend owns a computer store in Yuen Long, selling Desktop and Notebook PCs and other computer peripherals. Having been rather successful with his business there, he decided to venture into the infamous Mongkok Computer Center and has already been there for three months. As expected, compared to his Yuen Long store, his new store has been recording much larger revenue but when it comes to profit, he is not so sure. He needs to pay several times more in rent! In order to stimulate sales, your friend feels that he needs to understand his customers in Mongkok more. To help him do so, you have asked for a sample of the transactional data he collected and they are shown in Table.

a)  Set the Minimum Support to 18% and Minimum Confidence to 80%, find all frequent large itemsets (for product items) and all interesting rules using the Apriori algorithm.

(Please show your work step by step clearly and discuss what you would do with the item "Maintenance".)

b) By setting the Lift Ratio to 2, which rules you discovered in Part (a) are still interesting?

c) How many possible association rules (even though both the support and confidence are 0) would be generated from the following itemsets: {Case, Desktop, Maintenance, Mouse, Speaker, Webcam} and {Computer, Printer, Peripherals, Notebook_PC}. Compare the results, what you can conclude?

 

 

Posted Date: 4/5/2013 5:19:31 AM | Location : United States







Related Discussions:- Apriori algorithm-find all frequent large itemsets, Assignment Help, Ask Question on Apriori algorithm-find all frequent large itemsets, Get Answer, Expert's Help, Apriori algorithm-find all frequent large itemsets Discussions

Write discussion on Apriori algorithm-find all frequent large itemsets
Your posts are moderated
Related Questions
Illustration of implementation of inheritance Let us take the illustration of implementation of inheritance. Suppose that we are about to implement the Stack class and by now w

Scenario 1: Power goes out after the first instruction. What happens?

Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne

Creation of Indexes Automatically: When a primary key or Unique constraint is show in a table definition then a unique index is formed automatically. Manually: User can

What are three components of the schema architecture proposed by ANSI/SPARC? The three component schema architecture proposed by ANSI/SPARC is as given below: External sche

Explain hash file organization? Hash functions a) The distribution is uniform Hash functions assign each bucket the similar number of search -key values from the set of a

a.  Construct a query around any one of the functional divisions you made in 4a such that if executed in the distributed design of 4 would require reconstruction of at least two ho

Differance between Unordered and ordered file ? Unordered file do no has any sequence although ordered file has arranged in a few sequence and data are assigned in ordered form

This report identifies and outlines my CIS 499 project named Traffic Data Management  Systems (TDMS) .   My goal is to design a replica of all traffic issues to be implemented i

NEED ER DIAGRAM WITH MINIMUM ENTITY AND RELATIONSHIP of Hospital Management System