Results 1 - 10 of 241

Using OWL for Querying an XML/RDF Syntax

by Rubén Tous - Poster at the 14 th World Wide Web Conference , 2005
"... Some recent initiatives try to take profit from RDF to make XML documents interoperate at the semantic level. Ontologies are used to establish semantic connections among XML languages, and some mechanisms have been defined to query them with natural XML query languages like XPath and XML Query. Gene ..."
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Some recent initiatives try to take profit from RDF to make XML documents interoperate at the semantic level. Ontologies are used to establish semantic connections among XML languages, and some mechanisms have been defined to query them with natural XML query languages like XPath and XML Query

FROM XML TO RDF: SYNTAX, SEMANTICS, SECURITY, AND INTEGRITY

by C. Farkas, V. Gowadia, A. Jain, D. Roy
"... Abstract In this paper we evaluate security methods for eXtensible Markup Language (XML) and the Resource Description Framework (RDF). We argue that existing models are insufficient to provide high assurance security for future Web-based applications. We begin with a brief overview of XML access con ..."
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Abstract In this paper we evaluate security methods for eXtensible Markup Language (XML) and the Resource Description Framework (RDF). We argue that existing models are insufficient to provide high assurance security for future Web-based applications. We begin with a brief overview of XML access

RDF syntax normalization using XML validation

by Denny Vr, Frank Dengler, Sebastian Rudolph, Michael Erdmann
"... Abstract. Basing the Semantic Web stack on XML promised to introduce a lot of advantages by reusing tools and expertise. In general, these promises have not been fulfilled. In this paper we describe a method that re-uses existing standards creatively in order to provide a guaranteed serialization of ..."
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of an RDF graph that can again be used easily with widely spread XML tools and techniques like SAX, DOM, or XSLT. We provide a proof-of-concept implementation and provide a use case to illustrate the advantages of our approach. Alternative approaches are discussed and compared. 1

Resource Description Framework (RDF) Model and Syntax Specification

by Ora Lassila, Ralph R. Swick, World Wide, Web Consortium , 1998
"... This document is a revision of the public working draft dated 1998-08-19 incorporating suggestions received in review comments and further deliberations of the W3C RDF Model and Syntax Working Group. With the publication of this draft, the RDF Model and Syntax Specification enters "last call.&q ..."
Abstract - Cited by 926 (6 self) - Add to MetaCart
This document is a revision of the public working draft dated 1998-08-19 incorporating suggestions received in review comments and further deliberations of the W3C RDF Model and Syntax Working Group. With the publication of this draft, the RDF Model and Syntax Specification enters "last call

RQL: A Declarative Query Language for RDF

by Greg Karvounarakis, Sofia Alexaki, Vassilis Christophides, Dimitris Plexousakis, Michel Scholl
"... Real-scale Semantic Web applications, such as Web Portals and E-Marketplaces, require the management of voluminous metadata repositories containing descriptive information (i.e., metadata) about the available Web resources and services. Better knowledge about the meaning, usage, accessibility or qua ..."
Abstract - Cited by 247 (27 self) - Add to MetaCart
the interpretation of superimposed resource descriptions. RQL is an OQL-inspired adaptation of XML query languages to the peculiarities of RDF but, foremost, is an extension of this functionality for uniformly querying both descriptions and schemas. We illustrate the syntax, semantics and core functionality of RQL

Introducing time into rdf,

by Claudio Gutierrez , Carlos A Hurtado , Alejandro Vaisman - IEEE Transactions on Knowledge and Data Engineering , 2007
"... Abstract-The Resource Description Framework (RDF) is a metadata model and language recommended by the W3C. This paper presents a framework to incorporate temporal reasoning into RDF, yielding temporal RDF graphs. We present a semantics for these kinds of graphs which includes the notion of temporal ..."
Abstract - Cited by 89 (2 self) - Add to MetaCart
of temporal entailment and a syntax to incorporate this framework into standard RDF graphs, using the RDF vocabulary plus temporal labels. We give a characterization of temporal entailment in terms of RDF entailment and show that the former does not yield extra asymptotic complexity with respect

The Yin/Yang Web: XML Syntax and RDF Semantics

by Peter Patel-Schneider, Jérôme Siméon
"... XML is the W3C standard document format for writing and exchanging information on the Web. RDF is the W3C standard model for describing the semantics and reasoning about information on the Web. Unfortunately, RDF and XML---although very close to each other---are based on two different paradigms. W ..."
Abstract - Cited by 38 (1 self) - Add to MetaCart
. We argue that in order to lead the Semantic Web to its full potential, the syntax and the semantics of information needs to work together. To this end, we develop a model theory for the XML XQuery 1.0 and XPath 2.0 Data Model, which provides a unified model for both XML and RDF. This unified model

Problems with OWL Syntax

by Boris Motik, Ian Horrocks - In Proc. of the 2nd OWL Experiences and Directions Workshop, volume 216 of CEUR , 2006
"... Abstract. In this paper we discuss three problems with OWL syntax that repeatedly surface in practice. The first problem is that OWL does not allow for explicit declarations—assertions that a certain class, property, or an individual exists in an ontology. This aspect of the OWL standard was often m ..."
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misinterpreted, which caused design errors in OWL APIs; moreover, the lack of declarations makes devising an intuitive structural consistency check for OWL ontologies difficult. The second problem is that OWL Abstract Syntax and OWL RDF syntax rely on the separation between object and data property names

RDF Tutorial

by Pierre-Antoine Champin , 2001
"... This document is a presentation of the Resource Description Framework (RDF) recommended by the World Wide Web Consortium (W3C), to model meta-data about the resources of the web. It is described in both documents [1] and [2]; the former focuses on syntactical aspects while the later addresses the de ..."
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the denition of vocabularies (often named schemas). Though this is a pragmatic approach, I will use a slightly dierent plan, more suited to my own goals (using RDF in knowledge representation systems). The rst section will describe the RDF model, which is its fundamental syntax. The second section will present

Probabilistic RDF

by Octavian Udrea, V. S. Subrahmanian - In Proceedings of IEEE International Conference on Information Reuse and Integration, Waikoloa , 2006
"... Abstract. RDF is rapidly being adopted around the world as a para-digm for knowledge representation. However, we are not aware of any version of RDF that can express probabilistic knowledge. In this paper, we develop a framework called Probabilistic RDF (pRDF for short)- we provide a syntax as well ..."
Abstract - Cited by 7 (0 self) - Add to MetaCart
Abstract. RDF is rapidly being adopted around the world as a para-digm for knowledge representation. However, we are not aware of any version of RDF that can express probabilistic knowledge. In this paper, we develop a framework called Probabilistic RDF (pRDF for short)- we provide a syntax as well
Results 1 - 10 of 241