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
what do you mean by consistency in rdbms?

Can you scan double-sided documents - and remove blank pages? Our software and imaging systems supports duplex scanning, at the same time scanning both sides of a page. Program

Copy Data from One Database to another Database Project Description: I am having two MySQL databases with same tables. I just need to copy one Data from one to another dat

I want a script that will run, and update my virtual machine's LAN settings (proxy server and port), and also re-configure the Firefox User Agent. I want a script that will run,

Project Description: I am updating my Javascript + HTML website with five domains for the same website I would like to know if I want to create site map and submit it in all the

Define garbage collection. Garbage may be formed also as a side effect of crashes. Periodically, it is essential to find all the garbage pages and to add them to the list of fr

How nulls are treated in comparison operator? Along with comparison (relational) operators, the null values are ignored as we cannot derive the relation along with the given op

Which model is record based logical model? Network Modelis basically known as record based logical model.

Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs

Explain outer join? Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such ro