PROCEEDINGS IPMU '08
Analyzing Exception Rules
M. Delgado, M.D. Ruiz, D. Sánchez
Recent researches have pointed out
that associations rules are insufficient
for representing the diverse
kinds of knowledge collected in a
database. Exception rules deal with
a different type of knowledge sometimes
more useful than simple associations.
Moreover exception rules
(and other kinds of rules) provide
a more comprehensive understanding
of the information provided by
a database.
This work intends to go deeper in
the logic model studied in [3]. In
the model, association rules can be
viewed as general relations between
two or more attributes quantified
by means of a convenient quantifier.
Using this formulation we establish
the true semantics and the
real formulation of exception rules.
We also study the behavior of exceptions
when we deal with double
rules.
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