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The index organizations for RDF and RDF schema
2006 8th International Conference Advanced Communication Technology, 2006In semantic Web, metadata and ontology for representing semantics and conceptual relationships of information resources are essential factors. RDF and RDF schema are the W3C standard models for describing metadata and ontology. Therefore, storing and querying RDF and RDF schema is one of major tasks in applications on the semantic Web.
Youn Hee Kim +2 more
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Superimposed multidimensional schemas for RDF data analysis [PDF]
2017 IEEE 14th International Scientific Conference on Informatics, 2017 Traditional data analysis employs online analytical processing (OLAP) systems operating on multidimensional (MD) data. The Resource Description Framework (RDF) serves as the foundation for the publication of a growing amount of semantic web data still largely untapped by data analysis.
Christoph G. Schuetz +2 more
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The path index for query processing on RDF and RDF schema
The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005., 2005In the semantic Web, metadata and ontology plays important roles for advanced information retrieval systems. A large amount of RDF documents for describing metadata and RDF Schema documents for representing ontology is made available. Therefore, many studies to store and query metadata and ontology in RDF and RDF Schema are required.
Hae Chull Lim +3 more
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2011
Publisher Summary RDFS is the schema language for RDF. It describes constructs for types of objects, relating types to one another, properties that describe objects, and relationships between them. The Class system in RDFS includes a simple and elegant notion of inheritance, based on set inclusion; one class is a subclass of another means that ...
Dean Allemang, Jim Hendler
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Publisher Summary RDFS is the schema language for RDF. It describes constructs for types of objects, relating types to one another, properties that describe objects, and relationships between them. The Class system in RDFS includes a simple and elegant notion of inheritance, based on set inclusion; one class is a subclass of another means that ...
Dean Allemang, Jim Hendler
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RDF-Based Schema Mediation for Database Grid [PDF]
Fifth IEEE/ACM International Workshop on Grid Computing, 2005 In presence of Grid where a huge amount of databases can be involved in sharing cycle, database tools and middlewares should be well suited for schema mediation and query processing in a semantically meaningful way. Dart is an implemented prototype system whose goal is to provide a semantic solution for database resource sharing capable of deployment ...
Yuxing Mao +3 more
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2008
Publisher Summary This chapter discusses the RDFS (Resource Description Framework Schema) computer language. The class system in RDFS includes a simple and elegant notion of inheritance, based on set inclusion; one class is a subclass of another, meaning that instances of the one are also instances of the other.
Dean Allemang, James A. Hendler
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Publisher Summary This chapter discusses the RDFS (Resource Description Framework Schema) computer language. The class system in RDFS includes a simple and elegant notion of inheritance, based on set inclusion; one class is a subclass of another, meaning that instances of the one are also instances of the other.
Dean Allemang, James A. Hendler
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Integrating Ontologies and Thesauri to Build RDF Schemas [PDF]
, 1999 In this paper we present a new approach for building RDF schemas by integrating existing ontologies and structured vocabularies (thesauri). We will present a simple mechanism based on the specification of inclusion relationships between thesaurus terms and ontology concepts and show how these relationships can be exploited to create application ...
Amann, Bernd, Fundulaki, Irini
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Revealing the Conceptual Schemas of RDF Datasets
2019RDF-based datasets, thanks to their semantic richness, variety and fine granularity, are increasingly used by both researchers and business communities. However, these datasets suffer a lack of completeness as the content evolves continuously and data contributors are loosely constrained by the vocabularies and schemes related to the data sources ...
Issa, Subhi +3 more
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Scalable Schema Discovery for RDF Data
2020The semantic web provides access to an increasing number of linked datasets expressed in RDF. One feature of these datasets is that they are not constrained by a schema. Such schema could be very useful as it helps users understand the structure of the entities and can ease the exploitation of the dataset.
Zoubida Kedad +2 more
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2020
This chapter presents an in-depth primer for the RDF Schema (RDFS 1.1) standard, which is primarily used to define a lightweight semantics for the classes and properties used in RDF graphs. After an initial motivation and overview, we discuss the RDFS vocabulary, and how it can be used to define sub-classes, sub-properties, domain and ranges, amongst ...
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This chapter presents an in-depth primer for the RDF Schema (RDFS 1.1) standard, which is primarily used to define a lightweight semantics for the classes and properties used in RDF graphs. After an initial motivation and overview, we discuss the RDFS vocabulary, and how it can be used to define sub-classes, sub-properties, domain and ranges, amongst ...
openaire +2 more sources