70 Chapter 2 assoCiation rules
2.7.3 Potential Applications
The main goal of web mining is to extract useful knowledge from web-server
databases containing data about the behavior of customers. The potential
application of the discovery of time-constrained association rules is the min-
ing of a website visitor’s navigational patterns. On the data collected about
a visitor’s activities, a slightly modified version of the Apriori algorithm can
be used with values for t
1
and t
2
to define a time window.
In market basket analysis, our first application of association rules, there
was no ordering of items since all of the items were placed in a basket and
were paid for. It was actually impossible to detect the order in which cus-
tomers pick ...