LODUM talk at ifgi's Spatial @ WWU series

1

Project
Places, Periods and
Properties
for Linked Science

Carsten Keßler – carsten.kessler@uni-muenster.de

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Metadata
• Extended version of a
talk scheduled for next
week
• More info:
consulting.talis.com/
events
• Questions, feedback:
pad.ifgi.de/askme

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Problem: WWU‘s knowledge
is kept in silos Organizations Terminology
Formats

Literature
Faculties Disciplines Articles
01..15 Natural sc. Books
Social sc. Presentations
Institutes Human sc.
100+ Models and
Languages programs
Projects Deutsch Software
10.000+ English analogue
DFG Nederlands ...
BMBF ...
EU Databases
Industry and Files
... .xls
.pdf
.dbf
...

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Formats

Literature
Solution: 01..15 Natural sc. Books
Institutes Human sc.
100+ Models and
Languages programs
Projects Deutsch Software
DFG Nederlands ...
BMBF ...
EU Databases
Industry and Files
... .xls
.pdf
.dbf
...

3

Formats

Literature
Solution: 01..15 Natural sc. Books
• Open those silos Institutes Human sc.
100+ Models and
• Allow researchers to Languages programs
easily publish their data Projects Deutsch Software
& models DFG Nederlands ...
BMBF ...
• Allow them to easily EU Databases
ﬁnd & reuse existing Industry
...
and Files
.xls
data & models .pdf
.dbf
• Allow them to easily ...
combine different data

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Outline • Linked Open Data 101
• The LODUM idea
• Properties, Places, Periods
& Linked Science

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Linked Data 101
• Latest „incarnation“ of the
Semantic Web
• Semantic Web ﬂaws:
• expressive logics →
complex
• focus on ontologies
• hardly adopted outside the
scientiﬁc community
• Tim Berners-Lee: „raw data
now!“
http://on.ted.com/905J
CC Jonan Basterra

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Linked Data in a nutshell
So far: Web of interlinked documents, but links
have ambiguous semantics

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http://www.uni- http://www.ulb.uni-

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http://www.uni- ?
What does that link
http://www.ulb.uni-

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Linked Data in a nutshell (ctd.)
Web of Data: Interlinked data, semantics of links is
deﬁned in vocabularies

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7

org:hasSubOrganization


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Subject

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Subject Predicat

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Subject Predicat Object

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Subject Predicat Object

„Triple

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Linked Data Principles
http://www.w3.org/DesignIssues/LinkedData.html

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Linked Data Principles http://www.w3.org/DesignIssues/LinkedData.html

• Use URIs as names for things
• e.g., ﬁle:///Users/admin/wwu.png

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• Use HTTP URIs so that people can look up those
names
• e.g., http://www.uni-muenster.de

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names

• When someone looks up a URI, provide useful
information, using the standards (RDF*, SPARQL)
• e.g., http://www.uni-muenster.de foaf:name „Westfälische Wilhelms-Universität
Münster“

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names

• When someone looks up a URI, provide useful
information, using the standards (RDF*, SPARQL)
• e.g., http://www.uni-muenster.de foaf:name „Westfälische Wilhelms-Universität
Münster“

• Include links to other URIs, so that they can
discover more things.
• e.g., http://www.uni-muenster.de owl:sameAs http://dbpedia.org/University_of_M
%C3%BCnster

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Example
<http://carsten.io/> foaf:name "Carsten Keßler" ;
foaf:mbox <mailto:carsten.kessler@uni-muenster.de> ;
foaf:member <http://musil.uni-muenster.de/> ;
foaf:currentProject <http://lodum.de> ;
foaf:depiction <http://carsten.io/images/carsten_kessler.jpg> ;
foaf:interest
<http://dbpedia.org/resource/Linked_Data>,
<http://dbpedia.org/resource/Participatory_GIS> ;
dc:creator
<http://dx.doi.org/10.1007/s10115-011-0382-8>,
<http://dx.doi.org/10.1016/j.compenvurbsys.2008.08.004> ;

...

http://bit.ly/hhFsZb

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Linked (Open) Data

Linke
d

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Linked (Open) Data

Linke Open
d Data

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Linked (Open) Data

Linke Open
d Data

Linked Open

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Linked Data
Cloud

CC R. Cyganiak & A. Jentzsch: http://lod-cloud.net

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Linked Data WWU
Cloud

CC R. Cyganiak & A. Jentzsch: http://lod-cloud.net

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LODUM
Linked Open Data
University of Münster

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LODUM Linked Open Data

• Provide scientiﬁc and educational data as Linked
Open Data
• Open up and interlink existing data
• Provide data through a standardized interface for
application developers

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• Goals:
• Increase WWU‘s visibility
• Foster transdisciplinary research
• Improve access to and management of existing
data
• Interlinking 5+3 Ps:
• People, publications, projects, prices, patents
(→CRIS)
• Properties, places, periods

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Beyond the tech stuff
• Comprehensive transparency strategy
• Establish workﬂows to make data, models,
software etc. that are used in a publication
available
• Push Open Access publishing
• Following recommendations of the German
Research Council
• Steering committee for high-level administration
• Long-term initiative for the next decade

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WWU Data governance strategy
1. Create Incentives (for research and teaching)
2. Lower the barriers (technical, economic, legal,
institutional)
3. Staged licensing model, ranging from
confidential to Creative Commons / ODbL
4. Rules for publishing scientific data and models
5. Reversal of the „burden of proof“, requiring
justification for data that are not published

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Properties,
places & periods

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Properties,
places & periods
a.k.a.
topics & space-time

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Properties,
places & periods
a.k.a.
topics & space-time
& Linked Science © Tomi

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Linking disconnected datasets
• Conversion to RDF is easy
• But: How to ﬁnd data about the same real-world
things in other datasets?
•Names are ambiguous
• Space-time is an excellent data integrator:
something cannot be in two different places at the
same time

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dbpedia.org/resource/Münster

geonames.org/
2867543/

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dbprop:name
Münster

geonames.org/ gn:name
Münster
2867543/

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dbprop:name
Münster
wgs84_pos:lat
51.962944
wgs84_pos:long
7.628695

Münster
2867543/ wgs84_pos:lat
51.96236
wgs84_pos:long
7.62571

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dbprop:name
Münster
wgs84_pos:lat
51.962944
wgs84_pos:long
7.628695
sameAs

Münster
2867543/ wgs84_pos:lat
51.96236
wgs84_pos:long
7.62571

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statementA
statementB
statementC
sameAs …

geonames.org/ statementD
2867543/ statementE
statementF
…

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Brazil deforestation data

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52° North GeoViewer
• Integrated map viewer and LOD browser
• Developed in the semantics community
• Use case: biotopes in NRW, provided by LANUV
• Data preview

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Archaeology
• Automatic integration of spatial, temporal and
thematic data in a tool to document excavation
sites
• Facilitates work on-site
• Integration through
links of areas on maps

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Archaeology
• Automatic integration of spatial, temporal and
thematic data in a tool to document excavation
sites
• Facilitates work on-site
• Integration through
links of areas on maps

http://ulb.uni-muenster.de/maps/
aerial/…
http://ifgi.uni-muenster.de/data/

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Planetology
• Looking for reference data in Iceland

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Planetology
Query
• by theme
• spatially /
temporally

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Planetology
Query
• by theme
• spatially /
temporally

Results
http://ulb.uni-muenster.de/maps/aerial/…
http://ifgi.uni-muenster.de/data/musil/…
http://dbpedia.org/resource/Iceland
…

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Annotation of interviews in the
social sciences
• Tools for semantic annotation of audio- or video recordings of
interviews during transcription
• Drastically improve retrievability
of data with marginal overhead
• Interlink audio and transcript

http://www.flickr.com/photos/smiling_da_vinci/14785644/

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Annotation of interviews in the
social sciences
• Tools for semantic annotation of audio- or video recordings of
interviews during transcription
• Drastically improve retrievability
of data with marginal overhead
• Interlink audio and transcript

Question xy
Answer xy

http://www.flickr.com/photos/smiling_da_vinci/14785644/

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Datasets we are working on
•Library data (Umut)
http://data.uni-muenster.de/context/page/ulb/bibItem/4080957
•CRIS research database (Johannes)
http://data.uni-muenster.de/context/page/cris/person/9325
•Amazon deforestation data (Tomi)
•NRW biotopes (Henning, Jano et al.)
•OpenStreetMap provenance data (Carsten/
Johannes/Tomi)
Example
•WWU Buildings (Markus/Sven)
•CSA, Münster bus stops (Johannes)

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State of affairs
•Development work is making progress (with 2+2
SHs)
•http://data.uni-muenster.de to be launched soon!
•Establishing contacts to other universities,
especially Open University, UK (LUCERO Projekt,
http://lucero-project.info)
→ Linked Universities
•Special issue in Semantic Web Journal: Linked Data
for Science and Education
•Evaluating funding opportunities & writing
proposals

A
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dv
er
ti
se
1st International Workshop on

m
en
Linked Science 2011 (LISC 2011)

t
• October 23rd or 24rd 2011 in Bonn
• At International Semantic Web Conference (ISWC
2o11)
• linkedscience.org/events/lisc2011

A
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dv
er
ti
se
Linked Data courses

m
en
at ifgi next semester

t
• Linked Data Engineering Lab
Study project w/ Carsten and Tomi
https://ifgi.uni-muenster.de/ifgilogin/csa/?id=175

• Spatio-temporal and Semantic Modeling for Linked
Science
Seminar w/ Tomi
https://ifgi.uni-muenster.de/ifgilogin/csa/?id=171

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Thanks!
Visit us at lodum.de and data.uni-muenster.de
(soon)

LODUM talk at ifgi's Spatial @ WWU series

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