This document summarizes a presentation on semantic technologies and linked data. It discusses several European Union projects utilizing semantic technologies, including linking open government data. It also evaluates different public sector datasets in Spain for their compliance with linked data principles and best practices. Visualizations are provided showing the growth of links between terminology datasets over time as well as the increased efficiency of semantic querying compared to traditional methods.
13.  Common & shared data model  Different Domains
 RDF  Geography
 Logic formalism  E-Commerce
 Reasoning  Medicine
 Knowledge-management  Bibliography
 Expert systems  E-Government
 Standards  …
 Query languages  Next …Web 3.0?
 Vocabularies
 Datasets
 …
14. 1. Use URIs to name things
2. When someone looks up a URI,
provide useful information,
using the standards (RDF*,
PARQL).
3. Include links to other URIs.
4. Use HTTP URIs.
15. 1. Data Must Be Complete.
2. . . . Primary.
3. . . . Timely.
4. . . . Accessible.
5. . . . Machine processable.
6. Access Must Be Non-Discriminatory.
7. Data Formats Must Be Non-Proprietary.
8. Data Must Be License-free.
16. Linked Open Data
 203 datasets ( 25 Billions of rdf triples) and
 395 millions of links (Sept. 2010).
 Domains: Media, Geographic, Government (42,09 %),
 Publications, Cross-domain, Life sciences, etc.
(Ago. 2011).
 393 datasets (Jun. 2012).
http://richard.cyganiak.de/2007/10/lod/
17. Jose Labra Chris Bizer
Anja Jentzsch
Michael Hausenblas
Richard Cyganiak Sören Auer Jenni Tennison
Christophe Gueret
Óscar Corcho
Frank van Harmelen Wikier
Axel
Polleres
Aidan Hogan
Juan Miguel Peter Mika
https://ec.europa.eu/digital-agenda/ Gomez
G. Tummarello Irene Celino
http://ec.europa.eu/research/horizon2020/index_en.cfm
18.
19.
20. TED 1 Produce
3 Consume
…
XML RDFizing Semantic
Services
(e.g. Searching,
Methods Matchmaking &
BOE Prediction)
BOPA
Organizations
Linked Data
2 Api
Pubby+Snorql
CPV RDFizing Publish
NUTS
Eurovoc
4 Validate