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What is Open World Assumption (OWA)

Chapter 72
Encyclopedia of Internet Technologies and Applications
The presumption that what is not stated true is unknown and thus cannot be assumed to be either true or false. The OWA is considered being implicit in the Web as new Web sites can be connected and disconnected to the Web at any time.
Published in Chapter:
Semantic Web Languages and Ontologies
Livia Predoiu (University of Mannheim, Germany) and Anna V. Zhdanova (University of Surrey, UK)
Copyright: © 2008 |Pages: 7
DOI: 10.4018/978-1-59140-993-9.ch072
Abstract
On the current World Wide Web, most of the information is stored syntactically, i.e., only as data. The information that lies within the data can only be understood by humans and not automatically by computer programs. In order to overcome this issue, the idea of encoding the information not just syntactically but also with semantics has created a new notion of the Web called Semantic Web. This notion emerged together with developments of semi-structured languages like SGML and XML.
Full Text Chapter Download: US $37.50 Add to Cart
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Chapter 3
A Paraconsistent Relational Data Model
The open world assumption is the view that what is stated in the database is what is known; everything else is unknown.
Published in Chapter: A Paraconsistent Relational Data Model; From: Handbook of Research on Innovations in Database Technologies and Applications: Current and Future Trends
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