NDLI: Class algebra for ontology reasoning

Content Provider	IEEE Xplore Digital Library
Author	Buehrer, D. Lee Chee-Hwa
Copyright Year	1999
Description	Author affiliation: Inst. of Comput. Sci. & Inf. Eng., Nat. Chung Cheng Univ., Chia Yi, Taiwan (Buehrer, D.)
Abstract	Class algebra provides a natural framework for sharing ISA hierarchies between users who may be unaware of each other's definitions. This permits data from relational databases, object-oriented databases, and tagged XML documents to be joined into one distributed ontology sharable by all users without the need for prior negotiation or the development of a "standard" ontology for each field. Moreover class algebra produces a functional correspondence between a class's class algebraic definition (i.e. its "intent") and the set of all instances which satisfy the expression (i.e. its "extent"). The framework thus provides assistance in quickly locating examples and counterexamples of various definitions. This kind of information is very valuable when developing models of the real world, and serves as an invaluable tool assisting in the proof of theorems concerning these class algebra expressions. Finally, the relative frequencies of objects in the ISA hierarchy can produce a useful Boolean algebra of probabilities. The probabilities can be used by traditional information-theoretic classification methodologies to obtain optimal ways of classifying objects in the database.
Starting Page	2
Ending Page	13
File Size	1109122
Page Count	12
File Format	PDF
ISBN	0769503934
DOI	10.1109/TOOLS.1999.796462
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-09-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algebra Ontologies Instruction sets XML Relational databases Terminology Computer science Distributed databases Object oriented databases Frequency
Content Type	Text
Resource Type	Article

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