Results 211 to 220 of about 14,683 (262)

Rosetta Statements: simplifying FAIR knowledge graph construction with a user-centred approach. [PDF]

open access: yesDatabase (Oxford)
Vogt L   +6 more
europepmc   +1 more source

Knowledge Representation of a Multicenter Adolescent and Young Adult Cancer Infrastructure: Development of the STRONG AYA Knowledge Graph. [PDF]

open access: yesJCO Clin Cancer Inform
Hogenboom J   +11 more
europepmc   +1 more source
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RDF-X

Proceedings of the 23rd International Conference on World Wide Web, 2014
With the advent of Semantic Web and Resource Description Framework (RDF), the web is likely to witness an unprecedented wealth of knowledge, resulting from seamless integration of various data sources. Data integration is one of the key features of RDF, however, absence of secure means for managing sensitive RDF data may prevent sharing of critical ...
Jyothsna Rachapalli   +3 more
openaire   +1 more source

RDF/RDFS-based Relational Database Integration

22nd International Conference on Data Engineering (ICDE'06), 2006
We study the problem of answering queries through a RDF/RDFS ontology, given a set of view-based mappings between one or more relational schemas and this target ontology. Particularly, we consider a set of RDFS semantic constraints such as rdfs:subClassof, rdfs:subPropertyof, rdfs:domain, and rdfs:range, which are present in RDF model but neither XML ...
Huajun Chen   +3 more
openaire   +1 more source

RDF-Stores und RDF-Query-Engines

Datenbank-Spektrum, 2011
RDF ist das Datenmodell der Semantic-Web- und Linked-Data-Initiativen, das zunehmend Verbreitung findet. Es zeichnet sich durch feinkornige Strukturierungsmoglichkeiten in Form binarer Relationen und durch flexible Typisierung ohne die Notwendigkeit eines praskriptiven Schemas aus.
Thomas Neumann 0001, Gerhard Weikum
openaire   +2 more sources

Multidimensional RDF

2005
RDF has been proposed by W3C as a metadata model and language for representing information about resources in WWW. In this paper we introduce Multidimensional RDF (or MRDF), as an extension of RDF, suitable for representing context-dependent RDF data.
Manolis Gergatsoulis, Pantelis D. Lilis
openaire   +1 more source

RDF Xpress

Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval, 2012
We demonstrate RDF Xpress, a search engine that enables users to effectively retrieve information from large RDF knowledge bases or Linked Data Sources. RDF Xpress provides a search interface where users can combine triple patterns with keywords to form queries.
Elbassuoni, S., Ramanath, M., Weikum, G.
openaire   +2 more sources

Constraints in RDF

2011
RDF (Resource Description Framework) is a World Wide Web Consortium recommendation for specifying meta-data models on the web. RDF databases consist of triples in the form of subject-predicateobject, which are often conceptualized as defining a directed labeled graph. In this paper, we extend the basic model of RDF by introducing two types of integrity
Akhtar, Waseem   +2 more
openaire   +2 more sources

Scaling RDF with Time

Proceedings of the 17th international conference on World Wide Web, 2008
The World Wide Web Consortium's RDF standard primarily consists of (subject, property, object) triples that specify the value that a given subject has for a given property. However, it is frequently the case that even for a fixed subject and property, the value varies with time.
PUGLIESE, Andrea   +2 more
openaire   +1 more source

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