Erwin Folmer en Pieter van Everdingen

Linked Open Data
& PiLOD
Erwin Folmer ([email protected])
Wie kent Linked Data?
And might take a while…
5 star model based on “W3C standards”
Open Data = 1-3 stars
Linked Open Data = 4-5 stars
5
Erwin Folmer
Linked Open
Data & PiLOD
Re-Use of
Data
Interoperability
Sem-Tech
See More Play
More Do More
PHILOSOPHY
Web of
Data
Data at
Source
AAA
Multiple
Realities
5 Star
Model
4 Principles
Open
LINKED DATA
DESIGN PRINCIPLES
Enterprise
Government
SPECIFIC VIEWS
Big
Re-Use
(Voc)
Geo
URIs
Graph
Triples
CONCEPTS
Open
World
RDF
Metadata
SPARQL
JSON-LD
Vocabularies
Quality
STANDARDS
Turtle
RDFs
SKOS
XML
FOAF
Sensor
IoT
https://joinup.ec.europa.eu/community/ods/document/online-training-material
Open Innovation + LOD = PiLOD
+
=
Open Community for Linked Open Data knowledge exchange
PiLOD 2.0
It all started in… 2012
 Signals:
 Semantic Web / Linked Open Data potentially
interesting.
 Open Data being offered in many ways.
 The silo’s of government data, and potential links
with data on the web.
 But probably more questions raised than
solutions.
 (How) Will this work?
 What should be the approach?
Organisations involved in PiLOD first
phase
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Forum Standaardisatie
Programma stelsel van basisregistraties
Gemeente Amersfoort
Gemeente Nijmegen
Interprovinciaal Overleg
Geonovum
Kadaster
Geobusiness Nederland
Kwaliteitsinstituut Nederlandse Gemeenten
Ministerie van Infrastructuur en Milieu
Results phase 1
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Applications (House Safe)
Data sets
Workshops
Concept URI strategy
Raised attention for LOD
Any many more…
10 advantages of LOD

Links in the DNA of the data (and not in the application)

Keep data at the source, and build on that.
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Keep databases in tact with original vision, and no harmonisation to 1.
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No 1 data model, no 1 truth, no 1 reality: Multiple views on data: Variety!
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Anybody can say anything about anything
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Linking of multiple and different (unknown) models
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Data with linked context (standardised semantics / vocabularies)
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Technical fundament based on W3C standards
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Quality of data (more eyes)
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User statistics on element level (indicator of reliability)
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Simpler for user/adopter, not for provider of data.
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Beautiful unexpected applications and discoveries (see more, do more, play more)
10 disadvantages of LOD
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(For App Developer) Dependency on provider of data (networked dependency)
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Dependency on metadata
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Takes to much time to find out if data source is useful (need LOD viewer)
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Different types of sources (even individuals) – reliability? (advantage: user
statistics)
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Not that easy in practice. Complex and practical knowledge is scarce.
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Everybody his own URIs.
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Relatively not proven technology (tooling)
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Difficult to customize; loosing control (strange things in data)
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Usage of data in a different context then intended, potentially a problem
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Scary, unexpected applications (the pizza example)
http://www.youtube.com/watch?v=RNJl9EEcsoE
For sure: there is potential in Linked Open
Data
 Real innovation will be in the combination of
data sets: open, enterprise, private, …
PiLOD 2.0 – The Sequel
 Observation: Not yet ready….
 Content:
 Focus theme: “The Implementation”
 Closing the gap with practice
The Approach
 Open Project
 Founding Fathers – Open Participation
 Open sharing of knowledge & results
 September 2013 – Summer 2014 (25 june)
 Steering Board & Cases / Themes
 7 Cases
 2 Themes
 Results
 For each Case / Theme
 Knowledge Dissemination
Stuurgroep (Founding Fathers)
(Geonovum, Forum Standaardisatie, TNO, Kadaster, SLO, Belastingdienst, DEN, Ordina, DANS, Ministerie I&M, Rijkswaterstaat)
PiLOD 2.0 Sturende & Ondersteunende Activiteiten
Coordinatie & Aanjaging
Erwin Folmer
Case 1 – URI Strategie
Experiment
Jeroen Baltussen
Case 3 – Linked Data &
Locatie
Linda van den Brink
Communicatie (Events)
Marja Kamphuis
Case 5 – App Bouwers
Dimitri van Hees
Platform LOD
Richard Nagelmaeker
Case 7 – Sensor Data
Matthijs Vonder
Thema A. Bestuurlijke
Verankering LOD
John van Echtelt
PiLOD 2.0 Inhoudelijke Activiteiten
Case 2 – Semantiek
Arjen Santema
Case 4 – Front End
Job Spierings (ovb)
Case 6 – Dienstverlening in
Verbinding
Marco Brattinga
Deelnemers
(open voor iedereen!)
Case X – ….
Thema B. Kennis van LOD
(educatie)
Marcel van Mackelenbergh
Practical stuff
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PiLOD ends on June 25th 2014 (Nigeria – Argentina)
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Same pragmatic style…we prefer to be “on location”
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6 plenary meetings (and many others)
 Morning: Inspiring speakers + Progress Report
 Afternoon: Working sessions for cases
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Newsletter, LinkedIn: LOD Nederland, Website/Wiki:
Pilod.nl, Platform: platform.pilod.nl, Dropbox:
[email protected], Twitter #lodnl
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+ conceptual fridays
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+ “what is being requested/needed”
De key asset van PiLOD???
Tot slot
 Van harte welkom op 25 juni:
http://www.geonovum.nl/onderwerpen/linkeden-open-data/bijeenkomsten-linked-open-data
 Platform Linked Data Nederland
 [email protected]

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