free webinar: lod2 stack - 1st release
TRANSCRIPT
LOD2 Webinar . 29.11.2011 . Page 1 http://lod2.eu
Creating Knowledge out of Interlinked Data
LOD2 Webinar . 29.11.2011 . Page 2 http://lod2.eu
Creating Knowledge out of Interlinked Data
http://lod2.eu
LOD2 is a large-scale integrating project co-funded by the EuropeanCommission within the FP7 Information and Communication TechnologiesWork Programme. This 4-year project comprises leading Linked OpenData technology researchers, companies, and service providers. Comingfrom across 12 countries the partners are coordinated by the AgileKnowledge Engineering and Semantic Web Research Group at theUniversity of Leipzig, Germany.
LOD2 will integrate and syndicate Linked Data with existing large-scaleapplications. The project shows the benefits in the scenarios of Media andPublishing, Corporate Data intranets and eGovernment.
LOD2 Webinar . 29.11.2011 . Page 3 http://lod2.eu
Creating Knowledge out of Interlinked Data
http://lod2.eu
Once per month the LOD2 webinar series offer a free webinarabout 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 LinkedOpen Data.
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Creating Knowledge out of Interlinked Data
Address
University of LeipzigFaculty of Mathematics and Computer ScienceInstitute of Computer ScienceDepartment of Business Information Systems
Postfach 10092004009 LeipzigGermany
Coordinator
Thanks for your attention! http://lod2.eu
ContactA strong partnership
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Creating Knowledge out of Interlinked Data
http://lod2.eu
LOD2 stack anno 2011An introduction by Bert Van Nuffelen, TenForce
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Creating Knowledge out of Interlinked Data
• The LOD2 stack concepts• Demonstration
– WP7 use case– Digital Agenda use case
• Summary• Q&A
Contents
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Creating Knowledge out of Interlinked Data
• LOD2 project goal:– improved tool support for publishing Linked Data.– Easily accessible for the wide public
• Core enabler: the LOD2 stack
Situating the component stack in the LOD2 project
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Creating Knowledge out of Interlinked Data
The Linked Open Data Life Cycle
Inter-linking/Fusing
Classifi-cation/
Enrichment
QualityAnalysis
Evolution /Repair
Search/Browsing/
Exploration
Extraction
Storage/Querying
Manualrevision/
authoring
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Creating Knowledge out of Interlinked Data
LOD2 stack anno 2011: easing deployment of components
LOD2 stack v1 = Debian repository
LOD2 stack v2 =More components + more inter component
integration
2010 Sindice Silk Virtuoso PoolParty
D2R Sigma.EE Dbpedia CKAN OntoWiki ORE
2011
2012
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Creating Knowledge out of Interlinked Data
• 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 – system requirements
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Creating Knowledge out of Interlinked Data
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
Installing the LOD2 stack – software installation
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Creating Knowledge out of Interlinked Data
• 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.
Linked Data publishing capabilities currently offered
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Creating Knowledge out of Interlinked Data
USE CASE 1 – WP7 WKD
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WP7 – Media and Publishing usecase
WKG Tax & Accounting Companies/Brands- Akademische Arbeits-
gemeinschaft Verlag- Addison Group- Schleupen Tax- Wago Curadata
- Products (Examples)- Tax SW for Consumers- SW for Tax Accountants- SW for SMEs with focus
Controlling and Accounting
WKG Legal & Regulatory Companies/Brands- Carl Heymanns Verlag- Luchterhand- Werner Verlag- Carl Link- CW Haarfeld- Deutscher
Wirtschaftsdienst- AnNoText- Trigon Data
Products (Examples)- IP, Administrative Law- Civil, Family, Labor Law- Construction Law- Publications for Schools/KiTas- Public Health Insurance- Magazin „Personalwirtschaft“ (HR
Management)- SW for Lawyers and Notaries
WKG is part of Wolters Kluwer n.v .
- Worldwide reach- Europe- North America- Asia/Pacific
Economic success- Revenue 2010: EUR 3,6 bln- 19.000 Employees- Listed Amsterdam SE
- Customerorientation
- Lawyers- Tax Accountants- Corporations and SMEs- Fincancial institutions- Health Providers- Public Sector
• Wolters Kluwer Deutschland (WKD) contributed large dataset (XML)
• Work package goal: evaluating the LOD2 stack for publishing legal data– Extracted meta data statements– created controlled vocabularies
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WP7 DEMO 1 – extracting meta data from structured data
RDFstore
VirtuosoXML documents
representinge.g. journalsabout legal
content,comments
about laws, etc.
XSLT
Extract and upload
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WP7 DEMO 2 – Associating concepts to unstructured data
RDFstore
Virtuoso
RDFStore
PoolParty
Plain text Extract and upload
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The demos support a real world scenario
lawyerpersonal
textTaxonomy based annotation
Tagged
lawyertext
WKDAnnotated
content
Associated WKD
documents
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DEMODEMO
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Creating Knowledge out of Interlinked Data
USE CASE 2 – DIGITAL AGENDASCOREBOARD
Publishing statistical data
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• 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 Digital Agenda Scoreboard
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• 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 averageincome.
• % households with access to the internet at home (DAA scoreboard)• Mean and median income by household type (Eurostat)
The demo case
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Available RDF data
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Available RDF data
Observ ation Country Year Unit Measure householdswith access to theInternet at home
http://data.lod2.eu/scoreboard/items/h_iacc/HH_TOTAL/hh/Netherlands/2005
Netherlands 2005 % lines 0,7825984925
DG INFSO Scoreboard.rdf
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Observ ation Country Year Unit Measure householdswith access to theInternet at home
http://data.lod2.eu/scoreboard/items/h_iacc/HH_TOTAL/hh/Netherlands/2005
Netherlands 2005 % lines 0,7825984925
Available RDF data
Observ ation Country Year Measure Av erage netincome - total
http://eurostat.linked-statistics.org/data/ilc_di04#A,TOTAL,MED_E,EUR,NL,2005
http://eurostat.l inked-statistics.org/dic/geo#NL
http://eurostat.l inked-statistics.org/dic/time#2005
17002.3
Eurostat source ilc_di04
DG INFSO Scoreboard.rdf
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Country Year Observ ationDG INFSO
Measure %Households withinternet at home
Observ ationEurostat
MeasureAv erage netincome - total
Netherlands 2005 http://data.lod2.eu/scoreboard/items/h_iacc/HH_TOTAL/hh/Netherlands/2005
0,7825984925 http://eurostat.linked-statistics.org/data/demo_gind#A,AVG,NL,2004
17002.3
Target table
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Observ ation Country Year Measure Av erage netincome - total
http://eurostat.linked-statistics.org/data/ilc_di04#A,TOTAL,MED_E,EUR,NL,2005
http://eurostat.l inked-statistics.org/dic/geo#NL
http://eurostat.l inked-statistics.org/dic/time#2005
17002.3
Observ ation Country Year Unit Measure DSL linesshare in fixedbroadbandhttp://data.lod2.eu/scoreboard/item
s/bb_dsl/TOTAL_FBB/lines/Netherlands/2004
Netherlands 2004 % lines 0,6109657095
Demonstration
DG INFSOScoreboard
EuroStat(Latc)
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Local LOD2 Stack
EuroStat(Latc)
Demonstration
DG INFSOScoreboard
Links(countries,
years)via SILK
QUERYselect 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.?obDG <http://data.lod2.eu/scoreboard/properties/country> ?countryname.
?obDG <http://data.lod2.eu/scoreboard/properties/year> ?year.?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>.
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#indic_il><http://eurostat.linked-statistics.org/dic/indic_il#MED_E>.
?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>?obEUROval.
?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#geo> ?country.?obEURO <http://ontologycentral.com/2009/01/eurostat/ns#time> ?time.
} limit 100
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DEMODEMO
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Creating Knowledge out of Interlinked Data
SUMMARY
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• 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 andHowToContribute
• Online exploration can be done at demo.lod2.eu– [email protected] for technical questions– [email protected] general questions on LOD2 and linked data publishing.
Summary
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Creating Knowledge out of Interlinked Data
Q&AQ&A
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Creating Knowledge out of Interlinked Data
happy LOD publishing experienceLOD2 whishes you a
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Creating Knowledge out of Interlinked Data
Credits
Jingle R.E.M., Martin Kaltenböck, Florian KondertCoordination Thomas Thurner
Martin KaltenböckModeration Lambda VerdoncktPresented by Bert Van Nuffelen
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Creating Knowledge out of Interlinked Data
http://lod2.eu
Hope you enjoyed staying with us – if you need more detailedinformation, visit us at www.lod2.eu and let us know how we canimprove 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 ...
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Creating Knowledge out of Interlinked Data
http://lod2.eu