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Validating RDF Data

This book describes two languages for implementing constraints on RDF data, describing the main features of both Shape Expressions (ShEx) and Shapes Constraints Language (SHACL) [...]

By |September 15th, 2017|Comments Off on Validating RDF Data

Generating RDF from Tabular Data on the Web

This document defines the procedures and rules to be applied when converting tabular data into RDF. Tabular data may be complemented with metadata annotations that [...]

By |August 18th, 2017|Comments Off on Generating RDF from Tabular Data on the Web

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 [...]

By |August 13th, 2017|Comments Off on Linked Statistical Data Analysis

Don’t Use a Hammer to Screw in a Nail: Alternatives to REGEX in SPARQL

This brief blog post explains that regular expressions are expensive to evaluate regardless of what language you are using them in. The author suggests that [...]

By |August 13th, 2017|Comments Off on Don’t Use a Hammer to Screw in a Nail: Alternatives to REGEX in SPARQL

Equality and Inequality in SPARQL

This brief blog post discusses issues surrounding expression semantics in SPARQL. Practices that people are used to from other languages (like the use of "=" [...]

By |August 13th, 2017|Comments Off on Equality and Inequality in SPARQL

Transforming the Medical Subject Headings into Linked Data: a new article in the Journal of Library Metadata

This article reviews the pilot project to convert the Medical Subject Headings (MeSH) from XML to Linked Data/RDF. The article examines the collaborative process, the [...]

By |August 8th, 2017|Comments Off on Transforming the Medical Subject Headings into Linked Data: a new article in the Journal of Library Metadata

Maximising (Re)Usability of Library Metadata Using Linked Data

In this video, the speaker explores challenges related to the re-usability of library linked metadata in the field of cultural heritage- and for other purposes. [...]

By |August 6th, 2017|Comments Off on Maximising (Re)Usability of Library Metadata Using Linked Data

SKOS and Linked Data

This slideshare presentation introduces SKOS and explains how it can be used to represent RDF in a simple way. It explains how SKOS differs from [...]

By |August 6th, 2017|Comments Off on SKOS and Linked Data

Semantic Web Misconceptions

The Semantic Web has been talked about for more than a decade. Over those years, several mistaken or misleading ideas about the Semantic Web have [...]

By |July 22nd, 2017|Comments Off on Semantic Web Misconceptions

Library Linked Data Incubator Group: Datasets, Value Vocabularies, and Metadata Element Sets

This report on datasets, value vocabularies and metadata elements sets is a complement to the main report of the Library Linked Data Incubator Group. It [...]

By |May 23rd, 2017|Comments Off on Library Linked Data Incubator Group: Datasets, Value Vocabularies, and Metadata Element Sets