Abstract:
Knowledge 'decay' is a measure of the
degradation of knowledge integrity. In
a unified knowledge representation,
data, information and knowledge are
all represented in a single formalism as
"items". A unified knowledge
representation is extended here to
include two measures of knowledge
integrity. A rule of inference is
defined on the unified knowledge
representation that preserves the
validity of these two measures. This
rule of inference is used to define a
normalised knowledge base. The use
of a unified knowledge representation
and the application of knowledge base
normalisation simplifies the
estimation of knowledge decay.
