Affinity Analysis

What Does Affinity Analysis Mean?

Affinity analysis is a technique for the
purpose of data mining and analysis that is meant to discover co-occurrence
relationships among activities that are carried out by certain groups or
individuals. As such, affinity analysis can be applied to processes where identification
of agents is unique and information about activities can be recorded. In
reality, affinity analysis is mainly used for market basket analysis, whereby
retailers learn about the behavior of customers with regard to purchases they
make. Further, such an analysis helps in up-selling and cross-selling, besides
helping in loyalty programs, sales promotions, discount plans and even the
designing of stores.


Techopedia Explains Affinity Analysis

Affinity analysis largely involves the process of finding connections between different items based on the subject’s view of these items. Affinity analysis is used for studying patterns and behavior in customers to determine links in purchases. The most basic example of this is that of a shampoo and conditioner: while these two items are different from each other, a buyer makes a connection between them as they happen to be used at the same time.

The first step in affinity analysis is to identify the subject, which may be defined on certain conditions. The next step is to observe and then record the habits of this subject. On recording, certain patterns start to emerge, which can be used for making connections. Affinity analysis is largely used in marketing and sociology, in order to understand connections underlying between events that are connected but not directly related.


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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.