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Manipulating RDF data

Answering SPARQL Queries over Databases under OWL 2 QL Entailment Regime

This video presents an extension of the ontology-based data access platform Ontop that supports answering SPARQL queries under the OWL 2 QL direct semantics entailment [...]

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By |January 16th, 2016|Comments Off on Answering SPARQL Queries over Databases under OWL 2 QL Entailment Regime

Learning SPARQL: 2nd Edition

This book teaches how to use SPARQL 1.1, starting off with simple queries that demonstrate the language using a query-by-example approach and then taking the [...]

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By |January 16th, 2016|Comments Off on Learning SPARQL: 2nd Edition

Semantic Inferencing with MarkLogic

This tutorial familiarizes the user with concepts and steps for using Semantic Inferencing in MarkLogic. The concepts of inference, rulesets, asserted triples and ontology triples [...]

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By |January 16th, 2016|Comments Off on Semantic Inferencing with MarkLogic

Linked Data Patterns

This resource is a pattern catalogue for modelling, publishing, and consuming Linked Data which adopts a tried and tested means of communicating knowledge and experience [...]

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By |January 16th, 2016|Comments Off on Linked Data Patterns

SPARQL with R in less than 5 minutes

This article describes how to get up and running on the Semantic Web in less than 5 minutes using SPARQL with R. It begins with [...]

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By |January 15th, 2016|Comments Off on SPARQL with R in less than 5 minutes

Multi-Agent and Semantic Web Systems: Querying

This slide presentation of lecture material was used as part of a course given at The University of Edinburgh School of Informatics. This lecture discusses [...]

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By |November 12th, 2015|Comments Off on Multi-Agent and Semantic Web Systems: Querying

MarkLogic Semantics: Under the Hood

This slide presentation starts with the basics of triples and how to query RDF data using SPARQL (with a focus on SPARQL support in MarkLogic). [...]

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By |November 9th, 2015|Comments Off on MarkLogic Semantics: Under the Hood

Building Semantic Web CRUD Operations Using PHP

This article discusses how a shift in Web development towards Object-Oriented Programming (OOP) has shifted the model commonly used for connecting websites to databases (and [...]

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By |November 9th, 2015|Comments Off on Building Semantic Web CRUD Operations Using PHP

Access Control for HTTP Operations on Linked Data

Access control is a recognized open issue when interacting with RDF using HTTP methods. In literature, authentication and authorization mechanisms either introduce undesired complexity such [...]

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By |November 9th, 2015|Comments Off on Access Control for HTTP Operations on Linked Data

SPARQL 1.1 Graph Store HTTP Protocol

This W3C Specification describes the use of HTTP operations for the purpose of managing a collection of RDF graphs. This interface is an alternative to [...]

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By |November 8th, 2015|Comments Off on SPARQL 1.1 Graph Store HTTP Protocol