Skip to Content
Practical Applications of Data Mining
book

Practical Applications of Data Mining

by Sang C. Suh
January 2011
Intermediate to advanced
420 pages
12h 32m
English
Jones & Bartlett Learning
Content preview from Practical Applications of Data Mining
190 Chapter 5 rough SetS and BayeS’ theorieS
5.4 APPLICATIONS BASED ON BAYES’ AND ROUGH SETS
5.4.1 Customer Tendency Analysis Using 
Bayes’ Theory
Consider a store manager who wants to derive a purchase pattern of coffee
and sugar buyers. He wants to find out how likely a person buying coffee
will also buy sugar. The store manager knows that generally 50% of people
buying sugar also buy coffee. The prior probability of a customer buying
sugar is 1/200 and prior probability of a customer buying coffee is 1/50.
Therefore, we can obtain the following by using Bayes’ theorem:
PCoffeeSugar
PCoffee
(|)%.
()/
==
=
50 05
150
PPSugar Coffee
PCoffeeSug
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

R Data Mining

R Data Mining

Enrico Pegoraro, Andrea Cirillo
Commercial Data Mining

Commercial Data Mining

David Nettleton

Publisher Resources

ISBN: 9780763785871