Understands the role of formally declared domains and ranges for inferencing.
Concepts in RDF: Tutorial
This tutorial introduces concepts in RDF broken into three categories: 1) Fundamental (such as HTTP URIs); 2) Schema-definition concepts (useful for defining a new vocabularies); [...]
Euclid Project: Chapter 1 Quiz
Ten multiple choice questions that are intended to test one's knowledge after reading and viewing the materials in Module 1: Introduction and Application Scenarios.URL: http://www.euclid-project.eu/content/chapter-1-quizKeywords: [...]
Semantic Web Tutorial 11/14: RDF Schema and OWL 3/4
Follows where previous video left off with its description of classes, properties, domain and range. Discusses how RDF Schema approaches membership of a class differently [...]
Semantic Web Tutorial 10/14: RDF Schema and OWL 2/4
Follows where previous video left off, describing how RDF Schema is itself a vocabulary and how it can be used to define new classes of [...]
RDF Schema (RDFS)
Textual tutorial describing how RDF Schema (RDFS) extends RDF vocabulary to allow for describing taxonomies of classes and properties. RDFS also extends definitions for some [...]
Ontologies and the Semantic Web
This site introduces ontologies and the Semantic Web, with an emphasis on how ontologies are defined and used for applications. There are about about thirty [...]
Answering Queries Over OWL Ontologies with SPARQL
This slide presentation discusses the various types of RDF Schema and OWL entailment regimes defined by SPARQL 1.1. It highlights where limitations and restrictions exist [...]
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 [...]
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 [...]
Querying Linked Data
This slide presentation looks in detail at SPARQL and introduces approaches for querying and updating semantic data. It covers SPARQL algebra and protocol, and also [...]