SPARQL Beyond Subgraph Matching
This paper describes the extension of the Semantic Web query language SPARQL by defining the semantics of SPARQL queries under the entailment regimes of RDF, [...]
Schema-Agnostic Query Rewriting in SPARQL 1.1
SPARQL 1.1 supports the use of ontologies to enrich query results with logical entailments, and OWL 2 provides a dedicated fragment OWL QL for this [...]
On the Semantics of SPARQL Queries with Optional Matching under Entailment Regimes
This paper studies the semantics of SPARQL queries with optional matching features under entailment regimes. It argues that the normative semantics may lead to answers [...]
Dynamic Querying of Mass-Storage RDF Data with Rule-Based Entailment Regimes?
SPARQL is the W3C standard for querying RDF data, but it mostly provides means for querying simple RDF graphs only, whereas querying with respect to [...]
Foundations of Semantic Web Technologies: SPARQL Entailment Regimes
Slides covering the following topics: SPARQL can now be used with RDF Schema, OWL, and RIF semantics. Entailment Regimes overwrite evaluation of basic graph patterns. [...]
SPARQL 1.1 Entailment Regimes
There are different possible ways of defining a basic graph pattern matching extension for an entailment relation. This document specifies one such way for a [...]
Querying Semantic Data
After this tutorial, you should be able to: Build your own basic SPARQL queries, step-by-step; Understand that SPARQL is not just a query language, it [...]
Building Linked Data Applications
This slide presentation gives details on technologies and approaches for exploiting Linked Data by building Linked Data applications. It gives an overview of existing applications [...]
Semantic Modeling
After this tutorial, you should be able to: 1) Compare and contrast the properties of the various data modeling types and their typical scope; 2) [...]
Introduction to SKOS – Simple Knowledge Organization System
These slides are from the PhD Course on the Semantic Web at Turin Polytechnic University. SKOS provides the missing link between the rigorous logical formalism [...]