Linked Data, RDF, and SPARQL :: Oracle Alchemist
Getting Into Linked Data and the Semantic Web This is a post about the RDF metadata model and SPARQL query language, two components of the Linked Data structured data methodology. All of this is part of the collective vision known as the Semantic Web–a Web of Data that can be consumed by both humans and machines alike. The Lay of Linked Data I walked through the index forests, simply upon a lark A
How RDF Databases Differ from Other NoSQL Solutions - The Datagraph Blog
This started out as an answer at Semantic Overflow on how RDF database systems differ from other currently available NoSQL solutions. I've here expanded the answer somewhat and added some general-audience context. RDF database systems are the only standardized NoSQL solutions available at the moment, being built on a simple, uniform data model and a powerful, declarative query language. These syst
The D2RQ Platform – Accessing Relational Databases as Virtual RDF Graphs
The D2RQ Platform is a system for accessing relational databases as virtual, read-only RDF graphs. It offers RDF-based access to the content of relational databases without having to replicate it into an RDF store. Using D2RQ you can: query a non-RDF database using SPARQL access the content of the database as Linked Data over the Web create custom dumps of the database in RDF formats for loading i
Silk - The Linked Data Integration Framework
Robert Isele (eccenca GmbH) Anja Jentzsch (Hasso Plattner Institut) Christian Bizer (University of Mannheim) Julius Volz (Google) Petar Petrovski (University of Mannheim) Silk is an open source framework for integrating heterogeneous data sources. The primary uses cases of Silk include: Generating links between related data items within different Linked Data sources. Linked Data publishers can use
Freebase
Send feedback Data Dumps Stay organized with collections Save and categorize content based on your preferences. Data Dumps are a downloadable version of the data in Freebase. They constitute a snapshot of the data stored in Freebase and the Schema that structures it, and are provided under the same CC-BY license. The Freebase/Wikidata mappings are provided under the CC0 license. Freebase Triples F
D2R Server | The D2RQ Platform
D2R Server: Accessing databases with SPARQL and as Linked Data D2R Server is a tool for publishing relational databases on the Semantic Web. It enables RDF and HTML browsers to navigate the content of the database, and allows querying the database using the SPARQL query language. It is part of the D2RQ Platform. 1. About D2R Server 2. Features 3. Running D2R Server 3.1 Running D2R Server from the
Notation 3 Logic
Tim Berners-Lee, August 2005 $Revision: 1.154 $ of $Date: 2024/02/16 13:03:01 $ Status: An early draft of a semi-formal semantics of the N3 logical properties. Up to Design Issues An RDF language for the Semantic Web This article gives an operational semantics for Notation3 (N3) and some RDF properties for expressing logic. These properties, together with N3's extensions of RDF to include variable
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