Description Logic Programs: Combining Logic Programs with Description Logic
Name
4437-03.pdf
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246.99 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Grosof, Benjamin
Horrocks, Ian
Volz, Raphael
Decker, Stefan
Date Issued
February 13, 2004
Series/Report no.
MIT Sloan School of Management Working Paper;4437-03
Abstract
We show how to interoperate, semantically and inferentially, between the leading Semantic Web approaches to rules (RuleML Logic Programs) and ontologies (OWL/DAML+OIL Description Logic) via analyzing their expressive intersection. To do so, we define a new intermediate knowledge representation (KR) contained within this intersection: Description Logic Programs (DLP), and the closely related Description Horn Logic (DHL) which is an expressive fragment of first-order logic (FOL). DLP provides a significant degree of expressiveness, substantially greater than the RDF-Schema fragment of Description Logic.
We show how to perform DLP-fusion: the bidirectional translation of premises and inferences (including typical kinds of queries) from the DLP fragment of DL to LP, and vice versa from the DLP fragment of LP to DL. In particular, this translation enables one to "build rules on top of ontologies": it enables the rule KR to have access to DL ontological definitions for vocabulary primitives (e.g., predicates and individual constants) used by the rules. Conversely, the DLP-fusion technique likewise enables one to "build ontologies on top of rules": it enables ontological definitions to be supplemented by rules, or imported into DL from rules. It also enables available efficient LP inferencing algorithms/implementations to be exploited for reasoning over large-scale DL ontolo
Subjects
Semantic Web
rules
ontologies
logic programs
Description Logic
knowledge representation
XML
RDF
model-theoretic semantics
inferencing
interoperability
translation
information integration
knowledge representation
information technologies
intelligent agents
business process automation
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