Understands the concept of Federated Searches.
Linked Statistical Data Analysis
Linked Data design principles are increasingly employed to publish and consume high-fidelity, heterogeneous statistical datasets in a distributed fashion. While vast amounts of linked statistics [...]
Visualising The Location Graph With Gephi and Ordnance Survey Linked Data
Building on a previous post, the author shares another example using a SPARQL endpoint to query Linked Open Data and turn the results into a [...]
Wikidata SPARQL Query Tutorial
This video presentation demonstrates how to construct SPARQL queries simply and easily using the Wikidata Query Service. It works through an example of searching for [...]
Federating SPARQL Queries Across Government Linked Data
The author describes how to create a single SPARQL query which pulls Linked Data from two separate endpoints to answer complex questions in cases where [...]
Linked Data and SPARQL Queries Tutorial
This tutorial goes through some basic SPARQL queries in order to give the user a sense of how to discover and query different Linked Data [...]
Linked Data Query Processing: Introduction
These slides represent the first of a five-part tutorial presentation given at the 22nd International World Wide Web Conference (WWW 2013). This introduction gives a [...]
Learn About SPARQL 1.1
This S5 format slideshow details the changes made to the query language in SPARQL 1.1- it is not a basic introduction to SPARQL and assumes [...]
Querying Semantic Web Data with SPARQL (and SPARQL 1.1)
This lengthy slide presentation covers SPARQL 1.1. It begins with the fundamentals: graph patterns, operators, and algebraic representations. The second half dives deeply into complex [...]
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 [...]
Querying Linked Data with SPARQL
This slideset was part of the "How to Consume Linked Data" tutorial at the International Semantic Web Conference (ISWC), Oct. 2009. Predates SPARQL 1.1, so [...]