Free Webinar: LOD2 Stack - 1st release

Creating Knowledge out of Interlinked Data

LOD2 Webinar . 29.11.2011 . Page 1 http://lod2.eu


LOD2 is a large-scale integrating project co-funded by the European
Commission within the FP7 Information and Communication Technologies
Work Programme. This 4-year project comprises leading Linked Open
Data technology researchers, companies, and service providers. Coming
from across 12 countries the partners are coordinated by the Agile
Knowledge Engineering and Semantic Web Research Group at the
University of Leipzig, Germany.

LOD2 will integrate and syndicate Linked Data with existing large-scale
applications. The project shows the benefits in the scenarios of Media and
Publishing, Corporate Data intranets and eGovernment.

http://lod2.eu


Once per month the LOD2 webinar series offer a free webinar
about tools and services along the Linked Open Data Life Cycle.

Stay with us and learn more about acquisition, editing,
composing, connected applications – and finally publishing Linked
Open Data.

http://lod2.eu


A strong partnership
Contact

Address Coordinator

University of Leipzig
Faculty of Mathematics and Computer Science
Institute of Computer Science
Department of Business Information Systems

Postfach 100920
04009 Leipzig
Germany

Thanks for your attention!
LOD2 Webinar . 29.11.2011 . Page 4
http://lod2.eu
http://lod2.eu


LOD2 stack anno 2011
An introduction by Bert Van Nuffelen, TenForce

http://lod2.eu


Contents

• The LOD2 stack concepts
• Demonstration
– WP7 use case
– Digital Agenda use case
• Summary
• Q&A



Situating the component stack in the LOD2 project

• LOD2 project goal:
– improved tool support for publishing Linked Data.
– Easily accessible for the wide public

• Core enabler: the LOD2 stack



The Linked Open Data Life Cycle

Inter-
linking/
Fusing

Manual Classifi-
revision/ cation/
authoring Enrichment

Storage/ Quality
Querying Analysis

Evolution /
Extraction
Repair

Search/
Browsing/
Exploration



LOD2 stack anno 2011: easing deployment of components

LOD2 stack v2 = 2012
More components + more inter component
integration

2011
LOD2 stack v1 = Debian repository

Sindice Silk 2010
Virtuoso PoolParty
D2R Sigma.EE Dbpedia
CKAN OntoWiki ORE



Installing the LOD2 stack – system requirements

• Ubuntu 10.10 or more recent,
• or a Linux distribution which supports Debian packages
• the software in the stack is open-source
– although individual licenses differ
– Some components are also available as commercial product
– The source itself is not (yet) distributed through the LOD2 stack repository.



Installing the LOD2 stack – software installation

Setup of LOD components is now a matter of following the next few steps

# the installation of the LOD2 repository package.
wget http://stack.lod2.eu/lod2repository_current_all.deb
sudo dpkg –i lod2repository_current_all.deb
sudo apt-get update

# get some third party software
sudo add-apt-repository ‘deb http://archive.canonical.com/ lucid partner’
sudo apt-get update

# install all LOD components
sudo apt-get install lod2demo



Linked Data publishing capabilities currently offered

• Covers most of the LOD publishing cycle
• Combination of
– locally installed software,
– online available software, and
– online available data sources

– about page in the LOD demonstrator (http://demo.lod2.eu/lod2demo)

• Next: small demonstrations
– simplified examples
– Aim at demonstrating capabilities of the LOD2 stack
– Detailed discussions on tools see next webinars

Disclaimer. No harmonized user interface.



USE CASE 1 – WP7 WKD



WP7 – Media and Publishing usecase

• Wolters Kluwer Deutschland (WKD) contributed large dataset (XML)

WKG Legal & Regulatory
 Companies/Brands  Products (Examples)
- Carl Heymanns Verlag - IP, Administrative Law
- Luchterhand - Civil, Family, Labor Law
- Werner Verlag - Construction Law
- Carl Link - Publications for Schools/KiTas
- CW Haarfeld - Public Health Insurance WKG is part of Wolters Kluw er n.v .
- Deutscher - Magazin „Personalwirtschaft“ (HR
Wirtschaftsdienst Management)
- AnNoText - SW for Lawyers and Notaries - Customer - Worldwide reach
- Trigon Data orientation - Europe
- Lawyers - North America
- Tax Accountants - Asia/Paciﬁc
- Corporations and SMEs
WKG Tax & Accounting - Fincancial institutions  Economic success
- Health Providers - Revenue 2010: EUR 3,6 bln
 Companies/Brands - Products (Examples)
- Public Sector - 19.000 Employees
- Akademische Arbeits- - Tax SW for Consumers - Listed Amsterdam SE
gemeinschaft Verlag - SW for Tax Accountants
- Addison Group - SW for SMEs with focus
- Schleupen Tax Controlling and Accounting
- Wago Curadata

• Work package goal: evaluating the LOD2 stack for publishing legal data
– Extracted meta data statements
– created controlled vocabularies


WP7 DEMO 1 – extracting meta data from structured data

Virtuoso
XML documents
representing
e.g. journals Extract and upload RDF
about legal
content, store
comments
about laws, etc.

XSL
T



WP7 DEMO 2 – Associating concepts to unstructured data

PoolParty
RDF
Store
Virtuoso

Extract and upload RDF
Plain text store



The demos support a real world scenario

Tagge Associate
lawyer
d d WKD
personal Taxonomy based annotation
text lawyer document
text s

WKD
Annotated
content



DEMO



Publishing statistical data

USE CASE 2 – DIGITAL AGENDA
SCOREBOARD



The Digital Agenda Scoreboard

• LOD2 has been contacted in context of Publink by EC (DG INFSO) in 2010.
• LOD2 supported the creation of the digital scoreboard where the DG INFSO
data is published as RDF using the DataCube vocabulary (2011).
• The limited effort resulted in a graphical visualization of the statistical data &
machine readable public data.



The demo case

• The scoreboard data does not link to external data
• As the observations are about countries it would be nice to see the
evaluation of an indicator in the scoreboard w.r.t. to evolution in average
income.
• % households with access to the internet at home (DAA scoreboard)
• Mean and median income by household type (Eurostat)



Available RDF data



Available RDF data

DG INFSO Scoreboard.rdf
Observ ation Country Year Unit Measure households
w ith access to the
Internet at home
http://data.lod2.eu/scoreboard/item Netherlands 2005 % lines 0,7825984925
s/h_iacc/HH_TOTAL/hh/Netherlan
ds/2005



Available RDF data

DG INFSO Scoreboard.rdf
Observ ation Country Year Unit Measure households
w ith access to the
Internet at home
s/h_iacc/HH_TOTAL/hh/Netherlan
ds/2005

Eurostat source ilc_di04
Observ ation Country Year Measure Av erage net
income - total
http://eurostat.linked- http://eurostat.linked- http://eurostat.linked- 17002.3
statistics.org/data/ilc_di04#A,TOTAL,
statistic s.org/dic /geo#NL statistic s.org/dic /time#200
MED_E,EUR,NL,2005
5



Target table

Country Year Observ ation Measure % Observ ation Measure
DG INFSO Households w ith Eurostat Av erage net
internet at home income - total
Netherlands 2005 http://data.lod2.eu/scorebo 0,7825984925 http://eurostat.linked- 17002.3
ard/items/h_iacc/HH_TO statistics.org/data/demo_g
TAL/hh/Netherlands/2005 ind#A,AVG,NL,2004



Demonstration

Observ ation Country Year Unit Measure DSL lines
share in fixed
broadband
s/bb_dsl/TOTAL_FBB/lines/Nether
lands/2004

DG INFSO
Scoreboard

Observ ation Country Year Measure Av erage net
income - total
http://eurostat.linked- http://eurostat.linked- http://eurostat.linked- 17002.3
statistics.org/data/ilc_di04#A,TOTAL,
statistic s.org/dic /geo#NL statistic s.org/dic /time#200
EuroStat
MED_E,EUR,NL,2005
5

(Latc)



Demonstration

Local LOD2 Stack

DG INFSO QUERY
Scoreboard
select distinct ?countryname ?year ?obDG ?obDGval ?obEURO ?obEUROval
where {

?obDG rdf:type <http://purl.org/linked-data/cube#Observation>.
?obDG <http://data.lod2.eu/scoreboard/properties/h_iacc_HH_TOTAL_hh>
?obDGval.
Links
?obDG <http://data.lod2.eu/scoreboard/properties/country> ?countryname.
?obDG <http://data.lod2.eu/scoreboard/properties/year> ?year. (countries,
?obDG <http://www.w3.org/2004/02/skos/core#relatesTO> ?country.
?obDG <http://www.w3.org/2004/02/skos/core#relatesTO> ?time.
?obEURO rdf:type <http://purl.org/linked-data/cube#Observation>.
years)
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#indic_il>
<http://eurostat.linked-statistics.org/dic/indic_il#MED_E>. via SILK
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#hhtyp>
<http://eurostat.linked-statistics.org/dic/hhtyp#TOTAL>.
?obEURO <http://purl.org/linked-data/sdmx/2009/measure#obsValue>
EuroStat ?obEUROval.
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#geo> ?country.

(Latc)
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#time> ?time.
} limit 100



DEMO



SUMMARY



Summary

• More tools are available for exploration
– E.g. Sigma.EE, Sindice, CKAN, ORE, etc.

• Contribute your own component
– Check out our HowToContribute document
– Basically: create a Debian package of your application and upload it in our repository.

• More information
– stack.lod2.eu
• You find there also references to supporting documents such as HowToStart and
HowToContribute
• Online exploration can be done at demo.lod2.eu
– support-stack@lod2.eu for technical questions
– lod2@lists.okfn.org general questions on LOD2 and linked data publishing.



Q&A



LOD2 whishes you a

happy LOD publishing experience



Credits

Jingle R.E.M., Martin Kaltenböck, Florian Kondert
Coordination Thomas Thurner
Martin Kaltenböck
Moderation Lambda Verdonckt
Presented by Bert Van Nuffelen



Hope you enjoyed staying with us – if you need more detailed
information, visit us at www.lod2.eu and let us know how we can
improve to meet your expectations!

Don’t forget to register for our next webinar

20.12. 2011 - Virtuoso (Open Link Software)
24.01. 2012 - OntoWiki (University of Leipzig, Germany)

Have a great day and don’t forget ...

http://lod2.eu


http://lod2.eu

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