Interacting with RDF data
RDF and Logic: Reasoning and Extension
This paper explores embedding the various kinds of RDF entailment in F-Logic. It shows that the embedding of simple, RDF, and RDFS entailment, as well [...]
Expressive Languages for Querying the Semantic Web
SPARQL 1.1 was recently released, which includes entailment regimes for RDFS and OWL vocabularies and a mechanism to express navigation patterns through regular expressions. Unfortunately, [...]
Real-time RDF Extraction from Unstructured Data Streams
Most of the Web of Data is limited to a large compendium of encyclopedic knowledge describing entities. The timely and massive extraction of RDF facts [...]
FEATR: SPARQL Feature Detection
This video discusses FEATR, a tool which was developed as a practical solution for Web developers to detect the features of a SPARQL endpoint and [...]
Providing Linked Data
This video presentation covers the whole spectrum of Linked Data production and exposure. It begins with a grounding in Linked Data principles and best practices, [...]
ELITE: An Entailment-based Federated Query Engine for Complete and Transparent Semantic Data Integration
In recent years, the core of the Semantic Web has evolved to a conceptual layer built by a set of ontologies mapped onto data distributed [...]
Using SPARQL with RDFS and OWL Entailment
This chapter accompanied the lecture on SPARQL with entailment regimes given at the 7th Reasoning Web Summer School in Galway, Ireland, 2011. It first introduces [...]
Updating RDFS ABoxes and TBoxes in SPARQL
Updates in RDF stores have recently been standardized in the SPARQL 1.1 Update specification. However, computing answers entailed by ontologies in triple stores is usually [...]
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, [...]
SPARQL Query Containment under RDFS Entailment Regime
This research paper addresses the problem of SPARQL query containment, which is defined as determining if the result of one query is included in the [...]