Publikation
Integrating Graded Knowledge and Temporal Change in a Modal Fragment of OWL
Hans-Ulrich Krieger
In: Jaap van den Herik; Joaquim Filipe. Agents and Artificial Intelligence. Revised selected papers from the 8th International Conference, ICAART 2016. Pages xxx-yyy, Lecture Notes in Computer Science (LNCS), Springer-Verlag, 2016.
Zusammenfassung
Natural language statements uttered in diagnosis, but more general in daily
life are usually graded, i.e., are associated with a degree of
uncertainty about the validity of an assessment and is often
expressed through specific words in natural language.
In this paper, we look into a representation of such graded
statements by presenting a simple non-standard modal logic which comes
with a set of modal operators, directly associated with the words
indicating the uncertainty and interpreted through confidence intervals in
the model theory.
We complement the model theory by a set of RDFS-/OWL 2 RL-like entailment
(if-then) rules, acting on the syntactic representation of modalized
statements.
After that, we extend the modal statements by transaction time, in
order to implement a notion of temporal change.
Our interest in such a formalization is related to the use of OWL as the
de facto language in today's ontologies and its weakness to
represent and reason about assertional knowledge that is uncertain
and that changes over time.
Projekte
HYSOCIATEA - Hybrid Social Teams for Long-Term Collaboration in Cyber-Physical Environments,
PAL - Personal Assistant for Healthy Lifestyle
PAL - Personal Assistant for Healthy Lifestyle