Markup Languages and Document Processing: RDF Schema
These lecture slides were used for the course "Markup Languages and Document Processing", part of the Master in Informatics and Computing Engineering program at Porto [...]
Introduction and Application Scenarios
This module introduces the main principles of Linked Data, the underlying technologies and background standards. It provides basic knowledge for how data can be published [...]
Querying Linked Data
This module looks in great detail at SPARQL and introduces approaches for querying and updating semantic data. It covers the SPARQL algebra, the SPARQL 1.1 [...]
The Linking Open Data Cloud Diagram
This web page is the home of the LOD cloud diagram. This image shows datasets that have been published in Linked Data format, by contributors [...]
An Introduction to Semantic Web and Linked Data
This W3C tutorial was presented at WWW2014. It is a massive, 200+ slide presentation that provides at least an overview (and often a good amount [...]
Metadata Standards Crosswalk
The crosswalk presented here is only a partial list of the elements for each of many metadata standards, focusing on the areas of overlap. This [...]
How to Build an SQL Storage Adapter for RDF Data with Ruby
In this blog post, the author discusses his experience getting RDF.rb working with a PostgreSQL storage backend in order to work with RDF data in [...]
Creating RDF Triples
This documentation explains that RDF is a graph where the nodes are URI references, Blank Nodes or Literals. In RDFLib, nodes are represented by the [...]
XQuery and JavaScript Semantics APIs
This is the tenth chapter in MarkLogic's "Semantic Developer's Guide". It describes the XQuery and JavaScript Semantics APIs, which include an XQuery library module, built-in [...]
Inference
This is the seventh chapter in MarkLogic's "Semantic Developer's Guide". This chapter describes the process of discovering new facts about data based on a set [...]