Op 14 September vindt de10e DBpedia Community meeting plaats. De locatie is de Meervaart in Amsterdam.

Voor meer informatie en het programma zie de internationale DBpedia site: http://wiki.dbpedia.org/meetings/Amsterdam2017

Link naar het verslag en de afspraken over de Memorandum of Understanding.

In de middag is één van de sessies gewijd aan CLARIAH en DBpedia. Dit gaat deels over het consortium (KB, Huygens ING, IMEC Gent, VU Amsterdam) dat vorig jaar deel is gaan uitmaken van het Nederlandstalig chapter van DBpedia. Dit is een organisatorische versterking, en het logische vervolg hierop is de vraag waarvoor die versterking zal moeten worden ingezet. Victor de Boer en Gerard Kuys gaan in op vragen over kwaliteitsverbetering van de data in DBpedia. over het proces dat moet leiden tot een nieuwe versie van de ontologie, etc.

Tijdens deze sessie zal ook de vraag besproken worden, hoe DBpedia een rol kan spelen in het wetenschappelijk onderzoek en hoe de samenwerking tussen CLARIAH en DBpedia hechter kan worden gemaakt.



Basic Plans

Twitter : #DBpediaAmsterdam

The DBpedia Project in 2014: from a hosted data set to a public data infrastructure for the Web of Data. As the DBpedia community has grown extensively, we think that the time has come to get everybody in one large room and meet. We hope to get together three major groups involved in DBpedia: the DBpedia developers and maintainers, the communities of the individual DBpedia language chapters, and, of course, the DBpedia users. The meeting will be held at VU Amsterdam on Jan 30th and is co-located with the PiLOD 2.0 meeting one day earlier. The first session will be a discussion about the DBpedia State-of-Play, where core members of the DBpedia community present certain aspects of DBpedia and the audience is invited to give feedback and ask questions. The second session will be dedicated to users of DBpedia. We would like to invite companies, organisations, and other project to briefly present their use cases for DBpedia and give input on how we can improve DBpedia for users. Free slots still available, apply here.

After the lunch, we plan to have three break-out sessions for the topics (1) DBpedia and Library, (2) Linking text to LOD entities, and (3) What is wrong with DBpedia? Developers discussion on how to improve our baby. Finally, the last parallel sessions are planned as: DBpedia tutorial, DBpedia I18N developers' session, and a Local Dutch DBpedia Chapter Meeting, with the additional possibility to continue break out sessions.

About DBpedia

(Source: Semantic Web Journal article)
The DBpedia community project extracts structured, multilingual knowledge from Wikipedia and makes it freely available using Semantic Web and Linked Data standards. The extracted knowledge, comprising more than 1.8 billion facts, is structured according to an ontology maintained by the community. The knowledge is obtained from different Wikipedia language editions, thus covering more than 100 languages, and mapped to the community ontology. The resulting data sets are linked to more than 30 other data sets in the Linked Open Data (LOD) cloud. The DBpedia project was started in 2006 and has since attracted large interest in research and practice. A central part of the LOD cloud, it serves as a connection hub for other data sets. For the research community, DBpedia provides a testbed serving real world data spanning many domains and languages. Due to the continuous growth of Wikipedia, DBpedia also provides an increasing added value for data acquisition, re-use, and integration tasks within organisations. In this system report, we give an overview over the DBpedia community project, including its architecture, technical implementation, maintenance, internationalisation, and usage statistics, and showcase some popular DBpedia applications.

Travel Grants / Sponsorship

Some of the DBpedia developers work on DBpedia in their free-time and will not have institutional funding to come to the meeting. Therefore, we are still looking for sponsors for travel grants (as well as coffee and food for the sessions). If you are interested in sponsoring this meeting, please email our sponsorship chair to request more information.

Participants can apply for a travel grant by filling out a form or emailing Sebastian (who will fill out the same form on your behalf ;) ). Assuming we acquire a sponsor, these grants will be awarded depending on community activity (i.e., Google Summer of Code participation, Git Commits to DBpedia framework, activity on the mailing lists, etc.) and standing.

Quick Facts

Web URL: http://wiki.dbpedia.org/meetings/Amsterdam2014
When: January 30th, 2014
Where: VU Amsterdam, Netherlands ( behind the high main building, nr 6 on the map )
Host: Dutch DBpedia Chapter (http://nl.dbpedia.org) and the VU Amsterdam
Call for Contribution: Submission Open http://tinyurl.com/DBpedia-amsterdam-2014
Registration: see below
Co-located with the ~PiLOD 2.0 meeting on January 29th, 2014


We would especially like to thank Bibliotheek.nl – Public Libraries of the Netherlands for supporting the Dutch DBpedia Chapter.
Koninklijke Bibliotheek – National library of the Netherlands for supporting the Dutch DBpedia Chapter and providing coffee, lunch, and drinks for the meeting.
Semantic Web Company for providing coffee, lunch, and drinks for the meeting
Institute for Applied Informatics
VU Amsterdam kindly provided the facilities for the meeting, with special thanks to Lora Aroyo from BiographyNet
OpenLink Software for continuous hosting of the main DBpedia Endpoint


Participants and Registration

You can register by adding yourself here or send an email to one of the organizers. Registration is free.
See all the people attending the meeting. If you can't find your name in there you can add it here, and it will show up after a while (30 min or more).

Location / Venue

The meeting will be held in the VU Amsterdam University in Netherlands.
We will use the Medical Faculty building ( behind the high main building, nr 6 on the map ) and the following rooms: MF-G613, MF-A311, MF-A301, MD-B034


8:30 Registration in front of MF-G613
9:00 Session 1 DBpedia State of Play, Room: MF-G613 Session 1 Notepad
  Welcome by Enno Meijers from the Dutch DBpedia Chapter (see video)
  From a Hosted Data Set to a Public Data Infrastructure for the Web of Data, Sebastian Hellmann (see video), more information on the talk about the DBpedia Data stack
  DBpedia Internationalisation (PDF), Dimitris Kontokostas, The current state of the DBpedia internationalization effort, local DBpedia chapters and future challenges (see video)
  DBpedia hosting & usage statistics by Patrick van Kleef from OpenLink Software (see video)
  Wikidata and DBpedia, Gerard Meijssen from Wikidata. So far Wikidata and DBpedia have been rather stand offish, even though they have so much in common. What I want to do is present the current state of Wikidata and indicate its challenges. Many of these challenges have been met by DBpedia. I want to discuss how the two projects can mutually benefit from their activities. (see video)
  DBpedia Spotlight: Overview and Challenges (PDF), Joachim Daiber (see video)
  DBpedia-based applications developed from the DBpedia Greek chapter, Charalampos Bratsas, from the Greek DBpedia and OKF Greece (see video)
  Bridging the Gap between DBpedia and Natural Language, Christina Unger from CITEC – Lately we released the first version of a lexicon that captures linguistically rich information about verbalizations of 354 DBpedia classes and the 300 most frequent DBpedia properties in English (soon also Spanish and German). Such a lexicon can prove useful for a wide range of NLP applications over DBpedia. However, in order to keep the construction, extension and maintenance of such a multilingual lexicon feasible, it is necessary to include the DBpedia community in crowd-sourcing lexicalizations. We would like to discuss ways to do this and show possible benefits. (see video)
11:00 Coffee in front of MF-G613
11:30 Session 2 Use Cases for DBpedia, companies/developers, lightning talks, Room: MF-G613 Session 2 Notepad
  Using DBpedia for work on enterprise taxonomies and Linked Open Data (LOD) integration at Semantic Web Company, Martin Kaltenböck, Semantic Web Company will explain how the Austrian-based IT vendor for semantic information management Semantic Web Company (SWC) uses DBpedia for A) the work (creation, linking, and optimisation) on enterprise taxonomies with their core product PoolParty Semantic Suite and the SKOSsy service as well as B) how SWC uses DBpedia in several real world scenarios in the area of Linked Open Data (LOD) integration (entity linking, geo-tagging, et al). He will explain underlying mechanisms as well as show real world examples / use cases of SWC / PoolParty customers. (see video)
  Metadata Vocabularies and Cultural Heritage. Reconciling static and dynamic views (slides), Gerard Kuys, Dutch DBpedia and Ordina (see video)
  Datao – LinkedData at your fingertips NOW! by Oliver Rossel of http://datao.net/. Datao is a simple tool for LinkedData exploration and curation. Its user interface helps design and run SPARQL queries graphically. Find an endpoint, explore its data model, drag n drop data model elements to build a SPARQL query, click run and browse results as spreadsheet, map or form. Datao also manages a query repository, organized by categories (going from Travels to Education to Space to Libraries, etc). (see video)
  Digital Hermeneutics: From Information Delivery to Information Support by Lora Aroyo from VU Amsterdam (see video)
  Automatically Building Huge Gazetteers, Marco Fossati, SpazioDati. Lightning talk + company use case describing how to create linguistic resources with simple queries to DBpedia (see video)
  DBpedia based Movie Recommendations (industry project for cENTERTAIN.me by Harald Sack from Hasso-Plattner-Institut, Discussion the problems: timeliness of results, mapping among different language versions of DBpedia, reliable Linking to other LOD resources) (see video)
  German Government funded Project 'D-Werft' (Digital Dockyard) for Semantic Data Integration in the Media Production Value Chain by Harald Sack from Hasso-Plattner-Institut about applying DBpedia as data reference hub, uses DBpedia for Named Entity Disambiguation) (see video)
  Presentation about industrial use cases using DBpedia Deutsch, Adrian Paschke, Alexandru Todor (see video)
13:00 Lunch in front of room MF-A311 and MF-A301
14:00 Break-Out Sessions (BOS)

BOS 1 Room: MF-A311 BOS1 Notepad Exploring the connection of DBpedia to Library and Cultural Heritage (Chairs: Gerard Kuys, Thomas Riechert, Antoine Isaac)


BOS 2 Room: MF-A301 BOS2 Notepad Linking text to LOD entities (Chairs: Marieke van Erp, Victor de Boer, Agata Filipowska, Sebastian Hellmann)


BOS 3 Room: MF-B034 BOS3 Notepad What is wrong with DBpedia? Developers discussion on how to improve our baby – Presentations & Discussion (Chairs: Harald Sack, Marco Fossati, Mariano Rico)

15:30 Coffee in front of room MF-A311 and MF-A301
16:00 Parallel sessions for 90 min

PS 1 Room: MF-A301 PS1 Notepad DBpedia tutorial (Sebastian Hellmann)


PS 2 Room: MF-B034 PS3 Notepad DBpedia I18N developers session – Presentations & Discussion (Chair: Mariano Rico, Dimitris Kontokostas, Marco Fossati, Magnus Knuth)


PS 3 Room: MF-A311 PS3 Notepad Local Dutch DBpedia Chapter Meeting (Chair: Enno Meijers, Gerard Kuys)

  PS 4 possibility to continue break out sessions ;)
17:30 Closing Session in Room: MF-G613
18:00 Drinks, finally!

Co-located with the PiLOD 2.0 meeting

When: January 29th, 2014
Where: same location, different room

PiLOD (Platform implementatie Linked Open Data) organizes a meeting on the 29th of January. The program can be found on the main page at http://www.pilod.nl and further information is available here: [1] and [2] (in Dutch).


Please note: the DBpedia meeting is at the center of the city. This is a different location than SEMANTiCS, which is in the north east of Leipzig


Basic Plans

After the huge success in Amsterdam in January with over 70 participants the next meeting will be held in Leipzig on September 3rd, 2014.

Quick Facts

Co-located with

SEMANTiCS 2014, September 4-5 in Leipzig

Gold Sponsors of SEMANTiCS



If you would like to become a sponsor for the 2nd DBpedia Meeting, please contact the DBpedia Association


   Universität Leipzig
AG Corporate Semantic Web Institute for Computer Science, Freie Universität Berlin
Internet Technologies and -Systems University of Potsdam
Institute for Applied Informatics
Yovisto Academic Video Search
OpenLink Software for continuous hosting of the main DBpedia Endpoint


DBpedia Association Kick-Off Party

After the day of talks, we would like to invite you to celebrate with us the foundation of the DBpedia Association.
The party will be co-located with the Welcome reception and the 1st Pan-European Semantic Web Meetup of the SEMANTiCS at the KUBUS Leipzig.
See http://www.semantics.cc/programme/ for details.


  • Important: Attending the DBpedia Community meeting is free, but you need to register
  • The DBpedia Association Party in the evening is a joint event with the LOD2 Final Event and the SEMANTiCS Welcome Reception and requires a ticket. The ticket costs either 75 Euro where in addition you get a DBpedia logo on your badge and a DBpedia pin to show your support, or 25 Euro for the event (with no logo and no pin). The ticket can be booked from the SEMANTiCS registration system.
  • The ticket for the SEMANTiCS main conference has to be booked separately.

Call for Contribution

Please submit your proposal through our web form.
Contribution proposals include (but not limited to) presentation, posters, demos, lightning talks and session suggestions.

Location / Venue

The meeting will take place at Felix-Klein-Hörsaal (5th floor), Paulinum, University of Leipzig in Leipzig (map link).



9:00 Session 1 (Chair: Adrian Paschke) Session 1 Notepad
  Welcome by Sebastian Hellmann, Adrian Paschke and Harald Sack
  Keynote 1, by Sören Auer co-founder of DBpedia
  Keynote 2, by Sofia Angeletou Senior Data Architect for the BBC's Linked Data Platform
  DBpedia 2014 Highlights by Volha Bryl, University of Mannheim
10:30 Coffee
11:00 Session 2 Use Cases for DBpedia, companies/developers, lightning talks (Chair: Harald Sack) Session 2 Notepad
  DBpedia High Availability and Low Server Usage with Linked Data Fragments by Ruben Verborgh, University of Gent
  Versioning DBpedia Live using Memento by Paul Meinhardt, Kerstin Günther, Magnus Knuth, HPI Potsdam
  Vincit: Querying DBpedia in a flexible and multilevel way by Karolina Stasiak, vsoft
  Data interlinking together with crowd workers by Cristina Sarasua, University of Koblenz
  Knowledge Summarization in DBpedia by Edgard Marx, AKSW Group
  Linked Data Harvester by Andreas Blumauer, Semantic Web Company
  Product Information on Polish DBpedia by Krzysztof Wecel, Poznan University
  Evaluation Datasets for DBpedia-based entity linking, classification and salience computation algorithms by Milan Dojchinovski, Vaclav Zeman, Prague University of Economics
12:30 Lunch
14:00 Break-Out Sessions (BOS)

BOS 1 DBpedia @ LOD (Chair: Dimitris Kontokostas) BOS 1 Notepad

  • Wikimedia Commons Extraction by Dimitris Kontokostas, AKSW
  • Entity Facts by Michael Büchner, Deutsche Digitale Bibliothek
  • Multilingual indexing of videos of the TIB AV-Portal – Gaining an English indexing vocabulary by means of GND/DBpedia mapping by Dr. Sven Strobel, Technische Informationsbibliothek, Hannover
  • Short presentations of the demos and posters (see posters and demos in the PS 2: Demo and Poster Session)

BOS 2 DBpedia Roadmap Discussion on the next steps of the DBpedia project (Chair: Sebastian Hellmann) BOS 2 Notepad

  • DBpedia Association Introduction by Sebastian Hellmann, AKSW
  • DBpedia Live – Internationalization, Versioning, etc. by Magnus Knuth, HPI 
  • The DBpedia Communications Group by Martin Kaltenböck, Lieke Verhelst, Gerard Kuys, Dimitris Kontokostas
  • DBPedia Funding Opportunities by Adrian Paschke, Freie Universität Berlin
  • Discussion on Quality, Curation, & new Datasets
15:30 Coffee
16:00 Parallel Sessions (PS)

PS 1 DBpedia Developers (Chair: Alexandru Todor) PS 1 Notepad

  • Towards the Amharic DBpedia Chapter by Melkamu Beyene Ababu, Addis Ababa University
  • Enriching Belarusian DBpedia by Krzysztof Wecel, Poznan University
  • Dockerizing DBpedia by Alexandru Todor, FU Berlin
  • MissingBot: semi-automatic DBpedia Mappings Editor by Alexandru Todor, FU Berlin
  • Distributed extraction with Hadoop / Spark by Dimitris Kontokostas, AKSW Group
  • Linked Hypernyms in DBpedia German by Milan Dojchinovski, Vaclav Zeman, and Alexandru Todor, Freie Universitaet Berlin and Prague University of Economics
  • Wikidata Integration by Ali Ismaylov, University of Bonn
  • Discussion on DBpedia development plans

PS 2 Demo and Poster Session (Chair: Magnus Knuth) PS 2 Notepad

  • CLOR poster and demo by Yontao Ma, AIFB
  • Smart Media Navigator demo and poster by Jörg Waitelonis, Tabea Tietz, Harald Sack, yovisto GmbH
  • Entityclassifier.eu: Real-Time Classification of Entities in Text with Wikipedia poster by Milan Dojchinovskiand Tomáš Kliegr
  • Inconsistencies in DBpedia poster by Magnus Knuth, HPI Potsdam
  • Linked Data Harvester demo and poster by Andreas Blumauer, Semantic Web Company
  • Vincit: Querying DBpedia in a flexible and multilevel way demo by Andrzej Martyna and Karolina Stasiak, vsoft
  • Wordbol demo by Stefan Bunk, HPI 
  • DBpedia High Availability and Low Server Usage with Linked Data Fragments demo and poster by Ruben Verborgh, University of Gent

PS 3 DataId Hackathon (Chair: Martin Brümmer) PS 3 Notepad

17:30 Closing Words and Direction to the DBpedia Party


Basic Plans

After the huge success in Leipzig in September with over 80 participants the next meeting will be held in Dublin on February 9th, 2015.

Quick Facts


If you would like to become a sponsor for the 3rd DBpedia Meeting, please contact the DBpedia Association


The Knowledge and Data Engineering Group, Trinity College Dublin
Trinity Long Room Hub
H2020 ALIGNED Project
ADAPT Centre
Digital Repository of Ireland
Institute for Applied Informatics
SindiceTech for sponsoring part of the lunch
OpenLink Software for continuous hosting of the main DBpedia Endpoint



You can register by adding yourself here or send an email to one of the organizers. Registration is free but we offer an optional Support Ticket if you would like to support the DBpedia Association.

  • All attendants must register here (Please indicate if you have an "eduroam" account for arranging internet access)
  • Additionally you can optionally purchase a DBpedia Support ticket here

See all the people attending the meeting. If you can't find your name in there you can add it https://docs.google.com/spreadsheets/d/1XtgLLAekZfPTpEg0NB7pGUVaPUIQ8MobaRkK7aQmimY, and it will show up after a while (30 min or more).


Note that registration closes on 06/02/15

Call for Contributions

Please submit your proposal through our web form.
Contribution proposals include (but not limited to) presentation, posters, demos, lightning talks and session suggestions.

Location / Venue

The meeting will take place at the Trinity Long Room Hub  (2nd floor), break-out sessions will also be in the O'Reilly Institute, School of Computer Science and Statistics, Trinity College Dublin.

Schedule (Final)

9:00 Registration venue: Trinity Long Room Hub 
9:15 Session 1 Technical Directions & keynotes (Chair: Declan O'Sullivan) venue: Neil Lecture Theatre, Trinity Long Room Hub 
  Welcome by Declan O'Sullivan, ALIGNED Project and ADAPT TCD 
  Combining Data and Software Engineering on the Web by Rob Brennan, ALIGNED Project and ADAPT TCD slides
  DBpedia Use Case in ALIGNED Project, by Dimitris Kontokostas, University of Lepizig slides
  DBpedia and Digital Humanities in the CENDARI Project, by Jennifer Edmond, Trinity Long Room Hub 
10:00 Keynote DBpedia and Wolters Kluwer’s Linked Data Strategy, by Christian Dirschl, Chief Content Architect, Wolters Kluwer slides
10:30 Coffee venue: Ideas Space, Trinity Long Room Hub 
11:00 Session 2 (Chair: Jennifer Edmond) venue: Neil Lecture Theatre, Trinity Long Room Hub 
  DBpedia Future Directions, by Sebastian Hellmann, DBpedia Association, University of Lepizig (15') slides
  Leveraging Library Data, by Christoph Schmidt-Supprian, Trinity College Library (15') slides
  DBpedia's Triple Pattern Fragments, by Ruben Verborgh, Ghent University – iMinds, Belgium (15') slides
  Remapping the DBpedia mappings (in RML), by Anastasia Dimou, Ghent University – iMinds, Belgium (10')
  Populating DBpedia FR and using it for Extracting Information, by Julien Plu, Eurecom, France (10') slides
  DBpedia in the Japanese LOD cloud, by Fumihiro Kato, ROIS, Tokyo, Japan (10') slides
  Just before lunch: Freebase going private: effects on DBPedia?, by Giovanni Tummarello, Sindice, Ireland (8)
12:30 Lunch venue: Ideas Space, Trinity Long Room Hub 
14:00 Break-Out Sessions (BOS) – Note that some BOS sessions are in Computer Science, the O'Reilly Building

BOS 1 DBpedia Tools and Tutorials (Presenters: Markus Ackermann, Markus Freudenberg & Ali Ismayilov) slides

venue: Small Conference Room, O'Reilly Building

This session will focus on providing tutorial information for new DBpedia users and to highlight new tools available.
Covered topics:

  • Wikipedia content, characteristics, use-cases, limitations
  • motivation of structured and linked representation of Wikipedia knowledge
  • DBpedia architecture and ontology
  • examples and demonstration of DBpedia usage
  • Sample Wikidata extraction

BOS 2 DBpedia as Gaeilge Chapter Meeting slides (Chairs: Caoilfhionn Lane and Bianca Pereira) venue: Seminar Room, Trinity Long Room Hub

  • this is where the DBpedia as Gaeilge Chapter meets for the first time.
  • It is planned to formalise this group and set an agenda for future work on the DBpedia as Gaeilge

BOS 3 The new DBpedia OntologyVideo (Chairs: Dimitris Kontokostas) venue: Neil Lecture Theatre, Trinity Long Room Hub

  • DBpedia Ontology overview, by Gerard Kuys, Ordina, NL slides
  • DBpedia Ontology and Extractor Problems, by Vladimir Alexiev, Ontotext slides
  • MissingBot – A Batch Editing Tool For the DBpedia Mappings Wiki, by Alexandru Todor, FU Berlin – Corporate Semantic Web, Germany slides
  • Integrating WebProtégé into the DBpedia Mappings Wiki, by Ralph Schäfermeier and Alexandru Todor, FU Berlin – Corporate Semantic Web, Germany slides
  • Fitting data to schema, by Alberto Tonon, eXascale Infolab, Université de Fribourg slides
  • Discussion on the new ontology editing workflow and future directions of the DBpedia ontology

BOS 4 NLP & DBpedia (Chairs: Sebastian Hellmann) venue: Large Conference Room, O'Reilly Building

  • From DBpedia & Wordnet hierarchies to LinkedIn & Twitter, by Aonghus McGovern, Trinity College, Dublin
  • Pundit, a Web Annotation tool, by Giulio Andreini, NET7, Italy slides
  • Type inferencing in DBpedia from free Text by Václav Zeman, UE, Prague, Czech Republic slides
  • Using DBpedia for spotting and disambiguating entities, by Julien Plu, Eurecom, France slides
15:30 Coffee venue: O'Reilly Building Foyer
16:00 Parallel Sessions (PS) – Note that all PS are in Computer Science

PS 1 DBpedia Developers (Chair: Alexandru Todor) venue: Large Conference Room, O'Reilly Building

  • Discussion on DBpedia development plans
  • DBpedia in Bulgarian by Vladimir Alexiev, Lead Data and Ontology Management, Ontotext Corp
  • Mapping Wikidata to DBpedia by Ali Ismayilov, University of Bonn
  • Like Discory Hub, Qakis and Corese, by Raphaël BOYER, WIMMICS, INRIA, France
  • State of DBpédia fr, by Raphaël BOYER, WIMMICS, INRIA, France
  • Further Talks to be announced

PS 2 DBpedia and Digital Humanities (Chair: Kevin Feeney) venue: Room 1.07, Lloyd Building

  • NB This session will only run from 1600 – 1700 (sharp) due to room availability restrictions
  • This session invites talks from all organisations using DBpedia for digital humanites applications.
  • Knowledge-driven Personalised Research Environments Owen Conlon, ADAPT Centre, Trinity College Dublin slides
  • Interlinked Social Evolution Datasets, Z-Curve and Seshat Kevin Feeney, Seshat Project, Trinity College Dublin
  • Building Historical Geographical Datasets with DBpedia Odhran Gavin, Seshat Project, Trinity College Dublin
  • DRI, Linked Logainm and DBpedia Sandra Collins, Digital Repository of Ireland
  • The Arabic Wikipedia Initiative Fatima Al Harbi, ADAPT, Trinity College Dublin
17:30 Closing Words venue: O'Reilly Building Foyer
18:00 Informal social gathering at Café en Seine, 40 Dawson Street, Dublin 2


The 4th DBpedia community meeting will be held in Poznan, Poland, co-located with the 18th International Conference on Business Information Systems (BIS 2015).

Quick Facts



If you would like to become a sponsor for the 4th DBpedia Community Meeting, please contact the DBpedia Association.

H2020 ALIGNED Project
Institute for Applied Informatics
OpenLink Software for continuous hosting of the main DBpedia Endpoint


  • Agata Filipowska, Poznan University of Economics
  • Krzysztof Węcel, Poznan University of Economics
  • Adrian Paschke, DBpedia Germany, University of Berlin
  • Marta Bartkowiak, Adam Mickiewicz University, Poznan
  • Dimitris Kontokostas, DBpedia Association and AKSW, Uni Leipzig
  • Sebastian Hellmann, DBpedia Association and AKSW, Uni Leipzig


You can register by adding yourself here or send an email to one of the organizers. Please indicate if you have an "eduroam" account for arranging internet access. Registration is free but we offer an optional Support Ticket if you would like to support the DBpedia Association (https://event.gg/1205-4th-dbpedia-meeting-poznan).
Note that registration closes on 18/06/15.

Call for Contributions

Please submit your proposal through our Web form.
Contribution proposals include (but not limited to) presentation, posters, demos, lightning talks and session suggestions. Please note the publication opportunities.

Important information (Opportunity for publication)

As DBpedia Workshop is a regular conference workshop there is a possibility of having the publication included in the post-conference LNBIP Proceedings http://bis.kie.ue.poznan.pl/bis2015/proceedings/.  A short or regular paper corresponding to the presentation at the DBpedia Workshop may be submitted after the conference. It will then be subject to the review by the DBpedia Programme Committee.  If accepted, the author will have to register with a fee of 100 EUR to have the paper included in the volume (the rest of cost is covered by our sponsors). Moreover, if someone would like to stay for the whole BIS conference (three days), he is to pay (in case of publication) 250 EUR (or 320 EUR in case of very late registration). If someone would like to stay for the whole conference without the publication, he would have to cover the cost of catering (please contact Agata). The registration form for the conference may be found at: http://bis.kie.ue.poznan.pl/bis2015/registration/ (please do not use this form in case of attending only the DBpedia Workshop). 

SUBMISSION: https://easychair.org/conferences/?conf=dbpediabis2015 

Location / Venue

The meeting will take place in the main building of Poznan University of Economics (Google Maps). Details on the room numbers will be provided soon.


Thursday, June 25th, 2015


Keynote plenary session

Dr. Harald Sack: The Journey is the Reward – Towards New Paradigms in Web Search

Dimitris Kontokostas: The past, present & future of DBpedia

10:30 coffee break

DBpedia - session 1 (chair: Agata Filipowska)

  • DBpedia 2015 Highlights by Markus Freudenberg, AKSW
  • Recent Data Cleansing Approaches by Magnus Knuth, HPI
  • Cutting Long Stories Short: Fact Extraction from Wikipedia by Marco Fossati, Spatiodati
  • Modelling the quality of attributes in Wikipedia infoboxes by Krzysztof Węcel, Włodzimierz Lewoniewski, Poznan Uni.
12:15 lunch

DBpedia - session 2 (chair: Adrian Paschke)

  • SPARQLoud - Towards Linked Data Update Notications by Dinesh Reddy, HPI
  • Vincit by Andrzej Martyna, VSOFT SA
  • RDF Live Browser Extension by Cássio Prazeres and André Carlomagno Rocha, Insight Center / ufba.br
  • DBpedia Live subscriptions processing by Alexandru Todor, Freie Universität Berlin
  • Modular Development of the DBpedia Ontology with Ontology Aspects and Web Protégé by Ralph Schaefermeier, Freie Universität Berlin
  • Intelligent learning: enhancing MOOCs with DBpedia by Ali Siragedien, AliMethod.com
  • Utilization of DBpedia for data processing in maritime domain by Jacek Małyszko, Poznan Uni.
15:00 coffee break

DBpedia - session 3 (chair: Krzysztof Węcel)

  • DBpedia in the Art Market by Dominik Filipiak, Poznan Uni.
  • DBpedia SameAs service by Ande Valdestilhas, AKSW
  • The FREME Project and the role of DBpedia by Nilesh Chakraborty, AKSW
  • Moving towards wisdom through the knowledge hierarchy with the aid of semantic tools by Paweł Kapłański, Cognitum Sp.
  • DBpedia Interlink evolution by Alan Meehan, Trinity College
  • (DBpedia Tutorial by Markus Freudenberg, AKSW) depends on audience interest
16:45 coffee break

DBpedia - session 4 (chair: Dimitris Kontokostas)

  • DBpedia Dev Session
20:00 official dinner

Full BIS programme

After 4 successful meetings in Europe, we will cross the Atlantic for the next one: we are happy to announce that the 5th DBpedia meeting will be held at Stanford University, Palo Alto, on November 5th 2015.

Please read below on different ways you can participate. We are looking forward to meeting all the US-based DBpedia enthusiasts in person.

The event will feature talks from Yahoo!, IBM Watson, Blippar, Netflix and Stanford amongst others.

Quick facts


If you would like to become a sponsor for the 5th DBpedia Meeting, please contact the DBpedia Association

Dumontier Laboratory for Biomedical Knowledge Discovery

For hosting the meeting and helping with the organization



For sponsoring the catering of the meeting

Google Summer of Code 2015

Amazing program and the reason we are in US


ALIGNED - Software and Data Engineering

For funding the development of DBpedia as a project use-case and covering part of the travel cost

Institute for Applied Informatics

For supporting the DBpedia Association

OpenLink Software

For continuous hosting of the main DBpedia Endpoint





Attending the DBpedia Community meeting is free, but you need to register. There are 3 types of tickets that are booked separately:

  • Ticket for the main event (50 people)

  • Ticket for the pre-event (30 people)

  • Optional DBpedia support ticket


Call for Contribution

Please submit your proposal through our form. Contribution proposals include (but not limited to) presentation, demos, lightning talks and session suggestions. All talks are accepted by default and will be added to the program in batches.


Location / Venue

The meeting will take place at Palo Alto CA,  Stanford University, MSOB x303 (map).

Parking info: There is a parking structure on Pasteur Dr. near the hospital as well as in L-17. Both are only 5 minutes away walking. The yellow [P] shows the area for paid public parking. see the Stanford transportation maps for details and especially the south-west map.

Pre-meeting: The Center for Clinical Sciences Research (CCSR) building is located at 261 Campus Drive, next to the Beckman Center. 4205 is on the fourth floor of the south CCSR building. (map, gmap)

Going from the pre-meeting to the main event: CCSR is a 7 min walk from Beckman to MSOB (https://goo.gl/maps/fAaTA7QaiZ52)






16:00 pre-event meeting (room CCSR 4205)

Separate pre-meeting. Depending on the audience we can do hackathons, tutorials, QA sessions, etc (needs separate registration)


18:30 Main Event (Room MSOB x303)

18:30 - 19:00
  • Meet & Greet / Refreshments
19:00 - 19:15
  • Introductions (5”)

  • DBpedia state of affairs (10”)

19:15 - 20:45

Invited talks (1.5h)

  • Michel Dumontier, Stanford

  • Anshu Jain, IBM Watson

  • Nicolas Torzec, Yahoo!

  • Yashar Mehdad, Yahoo! Labs

  • Yves Raimond, Netflix

  • Karthik Gomadam, Independent

  • Joakim Soderberg, Blippar

  • Alkis Simitsis, HP Labs

20:45 - 20:50
  • Break + Refreshments
20:50 - 21:45
  • 5min lightning talks from the audience
    • Scott MacLeod, World University and School
      Developing World University and School as a database
    • Steven R. Loomis IBM
      Automatically extracted abbreviated data with DBpedia
    • David Martin, Nuance
      Using DBpedia with Nuance
    • Georgia Kourtika, HP Labs
  • Meet and Greet

Read the final report on our blog: 6th DBpedia Community Meeting in The Hague 2016

Following our successful meetings in Europe & US our next DBpedia meeting will be held at The Hague on February 12th (with welcome reception by TNO on 11th), hosted by the National Library of the Netherlands.

Quick facts


If you would like to become a sponsor for the 6th DBpedia Meeting, please contact the DBpedia Association

National Library of the Netherlands

For hosting the meeting and helping with the organization


ALIGNED - Software and Data Engineering

For funding the development of DBpedia as a project use-case and covering part of the travel cost

Institute for Applied Informatics

For supporting the DBpedia Association

OpenLink Software

For continuous hosting of the main DBpedia Endpoint

SEMANTiCS 2016: 12-15 Sep in Leipzig

For sponsoring part of the travel costs of DBpedia members

TNO innovation for life

For hosting the welcome reception on the 11th



  • Enno Meijers, National Library of the Netherlands, Dutch DBpedia
  • Gerard Kuys, Ordina, Dutch DBpedia
  • Gerald Wildenbeest, Saxion, Dutch DBpedia
  • Richard Nagelmaeker, Dutch DBpedia
  • Monika Solanki, University of Oxford, DBpedia Ontology
  • Julia Holze, DBpedia Association
  • Sandra Praetor, DBpedia Association
  • Dimitris Kontokostas, AKSW/KILT, DBpedia Association
  • Sebastian Hellmann, AKSW/KILT, DBpedia ASsociation


Attending the DBpedia Community meeting is free, but you need to register. You can optionally choose a DBpedia support ticket.

Call for Contribution

Please submit your proposal through our web form.
Contribution proposals include (but not limited to) presentation, posters, demos, lightning talks and session suggestions.

Location / Venue

The meeting will take place at Prins Willem-Alexanderhof 5, 2595 BE The Hague,  Netherlands at the National Library of the Netherlands building. See here for detailed directions.

Getting to the meeting by plane, you can use the Schiphol or Rotterdam airpots. Dusseldorf could also be an option but needs a 2.5h train connection.

WiFi: free WiFi will provided by KB
Evening Event(s): We have a welcome reception on Thursday at TNO - New Babylon.


Paul Groth, Disruptive Technology Director @ Elsevier Labs

Paul Groth holds a Ph.D. in Computer Science from the University of Southampton (2007) and has done research at the University of Southern California and the VU University Amsterdam. His research focuses on dealing with large amounts of diverse contextualized knowledge with a particular focus on the web and science applications. This includes research in data provenance, data science, data integration and knowledge sharing. Paul was co-chair of the W3C Provenance Working Group that created a standard for provenance interchange. He is co-author of Provenance: an Introduction to PROVThe Semantic Web Primer: 3rd Edition as well as numerous academic articles. Paul's personal website is pgroth.com and he blogs about his research and technology on ThinkLinks.


Marco Brattinga and Arjen SantemaLand Registry and Mapping Agency (Kadaster)

Marco Brattinga

Arjen SantemaThe Dutch Cadastre exploits several national key registers (cadastral registration, topographic map) and information nodes (addresses and buildings, real estate value, cables and pipelines, large scale topographic map). Marco Brattinga is principal consultant at Ordina. Arjen Santema works as consultant tactical information management and innovations at the Cadastre. They share the passion for semantics and practices for publishing data and metadata on the web. Together they developed a framework to describe the data and metadata in a registration in relation to a concept schema that describes what the registration is about and helps to understand this. By separating the concept schema from the data and metadata model they created a taxonomy with domain experts, that contains implementation independent definitions. On the other side they built a data model or an ontology for specific goals. They will present the ideas behind this framework and show some examples from the cadastral registration, the topographic map and the information node addresses and buildings.


Antoine Isaac and Hugo Manguinhas, Europeana

Antoine Isaac and Hugo Manguinhas are members of the R&D team at Europeana.eu, the platform for Europe’s digital cultural   heritage from libraries, museums and archives. We facilitate, coordinate and promote technological innovation for data aggregation, enhancement and dissemination of digital cultural heritage data and its associated services within the Europeana network. Our activities focus notably on data exchange, data quality, multilingualism and search.


Marco de Niet, DEN Foundation

Marco de Niet is the director of the DEN Foundation, the Dutch knowledge centre for digital heritage. He is actively involved in both national and international networks that focus on innovation with cultural heritage assets, including the Europeana Members Council. He is advisor to the policy officers of the Dutch Ministry of Culture that are responsible for the digital heritage strategies on the national level. He is responsible for the ENUMERATE Framework (currently part of Europeana) used for measuring the progress of digitisation in Europe. He is a member of the Dutch Unesco Memory of the World Committee, a board member of the Dutch Museum Register and a member of the Council for Dutch Language and Literature, which enhances the collaboration between the Netherlands and Flanders. He has a background in cultural information science.



The draft program is in the following table.

Thursday, 11. February:          Welcome Reception with snacks and drinks at TNO - New Babylon



Registration* and gathering on the 10th floor

* For security reasons at the TNO building in The Hague visitors have to register themselves at the reception desk with their ID or passport. Please make sure that you bring yours!  



Social event and poster/demo reception with the following projects:

  • The Smart Appliances REFerence ontology (SAREF) and Standardization in IoT
  • Linked Data in Horticulture
  • Semantic technologies in Logistics
  • Semantic search in Image Retrieval
  • Dark Web
  • Smart reasoning for well being

Friday, 12. February:

DBpedia Community Meeting

10:00 - 10:30

Meet & Greet

10:30 - 12:00

Opening Session / chair: Gerard Kuys

room: Auditorium

  • (5) Opening by Menno Rasch, Director of KB operations

  • (10+5) DBpedia Association Update by Sebastian Hellmann, AKSW/KILT - slides

  • (10+2) Digital Heritage in the Netherlands by Marco de Niet, DEN Foundation: Because this is what DBpedia is about as far as Dutch cultural institutions are concerned: in order to create common reference points, a common information infrastructure for heritage information is needed. What is more, public institutions in the field of culture have a responsibility in upholding such an infrastructure. Since the ultimate measure of those institutions' usefulness is in the ease with which a user of heritage information can find the answers to his or her questions, the requirement presents itself that cultural institutions cooperate ever more closely in order to be able to offer cultural information as a  single, interlinked package. In the end, the cultural institutions will find the information on and from their collections to be tightly knit together with the public data as being published by Europeana and the Network Digital Heritage. The presentation is available here.

  • (20+5) Keynote #1: by Marco Brattinga and Arjen Santema, Land Registry and Mapping Agency (Kadaster): Marco Brattinga and Arjen Santema talking about the best pratices they developed for the Dutch Land Registry and Mapping Agency (Kadaster). Together they developed a framework to describe the data and metadata in a registration in relation to a concept schema that describes what the registration is about and helps to understand this. By separating the concept schema from the data and metadata model they created a taxonomy with domain experts, that contains implementation independent definitions. On the other side they built a data model or an ontology for specific goals. They will present the ideas behind this framework and show some examples from the cadastral registration, the topographic map and the information node addresses and buildings.

  • (20+5) Keynote #2: by Paul Groth, Elsevier: Knowledge Graph Construction and the Role of DBPedia

    In this talk, I want to present some of our recent work on Knowledge Graph construction and the role of DBPedia and other Wikipedia based knowledge in that work. I discuss how having a an updated publicly available knowledge graph is crucial in acting as a reference for constructing internal knowledge graphs. The presentation is available here.

  • Introduction to the program by Gerard Kuys, Dutch DBpedia

12:00 - 12:45

Lunch Break

12:45 - 14:15

DBpedia Showcase session

room: Auditorium

  • (5) DBpedia+ Data Stack 2015-10 - Release by Markus Freudenberg, AKSW/KILT

  • (15) Enriching Cultural Heritage Data with DBpedia by Antoine Isaac, Europeana: For Europeana, getting richer metadata is a priority. It improves access to the nearly 50 million cultural heritage objects, notably by enabling better multilingual retrieval and creating relations between objects. The Europeana Data Model (EDM) allows the ingestion of semantic and multilingual metadata. It notably supports the representation of contextual links to concepts described in third-party data sources such as DBpedia. These rich entities are either provided by data providers in their metadata or selected by Europeana using semantic automatic enrichment. To further enhance its data and improving documents retrieval across languages, Europeana is now working on a “semantic entity database”. DBpedia will be one of the source datasets used as an anchor for more domain specific vocabularies. Find the compelte presentation here.

  • (10) DBpedia Wayback Machine by Patrik Schneider, Siemens and WU Wien: DBpedia is one of the biggest and most important focal point of the Linked Open Data movement. Despite its multiple services, it lacks a fine-grained wayback mechanism to retrieve historical versions of resources at a given timestamp in the past, thus preventing systems to work on the full history of RDF documents. In this talk, we present (a) the framework that serves this mechanism and is publicly offered through a Web UI and a RESTful API, following the Linked Open Data principles; and (b) the usage of the Wayback Machine in the CityDataPipline. Find the complete presentation here.

  • (10) BlueSky - Knowledge Diviner - DBpedia demo by Richard Nagelmaeker: A new view on data interaction as a reference point for data-driven architecture. Find the complete presentation here.

  • (5) GOOSE by Laura Daniele, TNO Find the complete presentation here.

  • (5) DBlexipedia: A nucleus for a multilingual lexical Semantic Web by Christina Unger, CITECNatural language-based applications using DBpedia face the challenge that they require knowledge about how the ontology elements are verbalized in natural language. In order to provide such knowledge at the required scale and thereby leverage the use of DBpedia in different applications, we construct a lexicon for the DBpedia ontology by means of existing automatic methods for lexicon induction. It contains 11,998 lexical entries for 574 different properties in three languages: English, German, and Spanish. Just like DBpedia provides a hub for Semantic Web datasets, this lexicon can provide a hub for the lexical Semantic Web, an ecosystem in which lexical information are published, linked, and re-used across applications. Find the complete presentation here.

  • (5) DBpedia Historic data by Raphael Boyer, DBpedia FR / INRIA Find the complete presentation here.

  • (5) Using Elasticsearch + DBpedia to maintain a searchable database of global power plants. by Chris Davis: Many countries are undergoing an energy transition, although relevant data about their portfolio of power plants is often only found as a mix of official and crowdsourced data.  To navigate this, we have set up an Elasticsearch instance containing this data (http://enipedia.tudelft.nl/Elasticsearch.html).  To help synchronize the collection of the 4000+ Wikipedia articles on global power plants with their latest edits, we use a single SPARQL query to DBpedia that performs a category traversal to retrieve information on the latest revision IDs of the articles (https://github.com/cbdavis/wikipedia-power-plants). Find the complete presentation here.

  • (5) Linked Data Reactor by Ali KhaliliThe LD-R framework combines several state-of-the-art Web technologies to realize the vision of Linked Data components. LD-R is centered around Facebook's ReactJS and Flux architecture for developing Web components with single directional data flow. LD-R offers the first Isomorphic Semantic Web application (i.e. using the same code for both client and server side) by dehydrating/rehydrating states between the client and server.

  • (10) Using DBPedia in Europeana Food and Drink by Vladimir Alexiev / Ontotext: The Europeana Food and Drink project collects cultural heritage objects for and develops applications related to Food and Drink heritage. As part of the project, Ontotext developed a FD Classification based on Wikipedia/DBpedia Categories, a semantic enrichment service that annotates each CHO with FD Topics and Places, and a semantic application that implements hierarchical semantic facets and semantic search for these facets. We'll also be packaging the enrichment as a service for others to use in a crowdsourced annotation application.  We will explain how we used Categories to build a domain-specific gazetteer, used external datasets (eg UMBEL domains and DBTax types), correlated DBpedia places to Geonames to use the place hierarchy, and the workings of the semantic application. Find the complete presentation here.

  • (5) FREME by Nilesh Chakraborty. Open Framework of e-Services for Multilingual and Semantic Enrichment of Digital Content. Find the complete presentation here.

  • (5) Using DBpedia for improved Vaccine Information Systems by Monika Solanki, University of Oxford Find the complete presentation here.

14:15 - 14:30

Coffee break (15”)

14:30 - 15:45

PS1: DBpedia ontology / chair: Monika Solanki, University of Oxford 

Room: B

  • DBpedia ontology survey results & discussion

  • Agenda:

    1. Introduction to the DBpedia ontology

    2. talks from people who are extensively and aggressively using the ontology:

    • (7) WebProtégé demo & aspect oriented programmingby Ralph Schäfermeier & Alexandru Todor / FU Berlin, 

    • (5) classification ontology by Gerard Kuys / Ordina

    • (5) DBpedia mappings quality problemsVladimir Alexiev / Ontotext

3. DBpedia ontology survey results

4. Proposed plan to address action points from the survey results

5. Discussion

PS2: DBpedia & Heritage: Challenges and opportunities of reference data for digital heritage / chair: Enno Meijers, Dutch DBpedia (Find the complete presentation here.)

Room: Auditorium

  • (15) Building an ecosystem of networked references by Hugo ManguinhasEuropeana:  Over the past five years, the amount of contextual entities in Europeana’s metadata has grown considerably. These entities are provided as references as part of the metadata delivered by Europeana or selected by Europeana semantic automatic enrichment. Pursuing their efforts towards the creation of a semantic network around cultural heritage objects, Europeana and its partners providers and aggregators are investigating ways to better exchange vocabulary data and manage co-references/alignments between vocabularies. In this presentation we will explore the potential of tools such as OpenSkos and Cultuurlink for supporting the building of networked references. Find the complete presentation here.
  • (15) RML - generating high quality Linked Data by Anastasia Dimou, iMinds: Despite the significant number of existing tools, incorporating data from multiple sources and different formats into the Linked Open Data cloud remains complicated. The RML tool chain developed by iMinds provides a generic solution, based on an extension over R2RML, for mapping data in a source-agnostic and extensible way, while facilitating the definition of mappings of multiple heterogeneous sources. Find the complete presentation here.
  • (15) Histograph: geocoding places of the past by Joop Vanderheiden, RCE:  Histograph: a historical geocoder for search and standardization of place names throughout history. Histograph collects and links place names and uses these to georeference and standardize place names in time; currently, sources used include birth places of Dutch East India Company crew members, monastry records and historical census data. Find the complete presentation here.

  • (15) "Illegal newspapers in the WOII" Wikipedia/DBpedia project by Olaf Janssen, KB: Olaf Jansen, the wikipedian-in-residence at the KB works on describing nearly 1300 illegal newspapers printed in the WOII in the Dutch Wikipedia. The fulltext of the newspaper will be available at the Delpher service of the KB. The newspaper articles will be linked to relevant persons and places using the DBpedia. Find the complete presentation here.

15:45 - 16:00

Coffee break (15”)

16:00 - 17:15

BS1: DBpedia Dev session / chair: Dimitris Kontokostas

Room: A

Session for developers to talk about technical issues and challenges in DBpedia including:

  • (5+5) Recent Quality improvements in DBpedia by Dimitris Kontokostas / AKSW/KILT

  • (7+5) Mappings wiki with a Git-based approach by Alexandru Todor / FU Berlin

  • Hosting

  • DBpedia+ (how to contribute and interlink data)

  • mini roadmap

BS2: DBpedia Tutorial by Markus Freudenberg, AKSW/KILT

Room: B

a one hour tutorial about Linked Data and DBpedia

The tutorial will start with an open talk to assess the level of the audience and then either start with a general introduction to Linked Data or go more into detail and provide an overview and tips and tricks on DBpedia components and  what we can do with it.

BS3: DBpedia & NLP (partially focused on Cultural Heritage) chair: Sebastian Hellmann, AKSW/KILT

Room: Auditorium

In this session we will investigate the application of Linked Data on Language Technologies, especially entity linking. The domain is focused partially on Digital Humanities

(20) Results of the LIDER project by Christina Unger, CITEC: One of the outcomes of the LIDER support action are guidelines to facilitate the discovery, reuse and exploitation of existing linguistic resources, aiming at the establishment of a new Linked Open Data (LOD) based ecosystem of free, interlinked, and semantically interoperable language and media resources (corpora, dictionaries, lexical and syntactic metadata, images, etc.) for multilingual, cross-media content analytics. In order to show how these guidelines can be realized, I will showcase example services for discovering and querying relevant linguistic resources and for using and linking LOD-aware NLP services. The full presentation is available here.

(20) TellMeFirst ­ A Knowledge Domain Discovery Framework by Giuseppe FutiaTellMeFirst (TMF) is an open­-source framework that leverages the DBpedia knowledge base and the Wikipedia corpus for classifying documents, achieved by computing a similarity score between the target document and an initial training set. Each DBpedia entity identifies a document of the training set that includes all Wikipedia paragraphs in which the entity appears as wikilink. The training set is composed by entities covered in DBpedia from different knowledge domains (such as Cultural Heritage, Politics, History, Science, Sport). Nevertheless, cultural institutes, companies, and public administrations are much more interested in a classification system that exploits only a subset of these entities, specific for their purposes and needs. During the talk, we will introduce both the transformation pipeline (based on DBpedia Spotlight project) for building a general-­purpose training set and a configurable process for building a domain training set. Then, we will report on the differences between classification results obtained by evaluating TMF with the two training sets in an example scenario. The full presentation is available here.

(20) Mapping the Bio-economy using DBpedia Spotlight by Chris Davis:
A large variety of industrial processes use petroleum-derived feedstocks, and there is significant discussion about creating a bio-based economy which replaces these with more renewable resources.  So what is the bio-economy and which feedstocks are people using, and for which purposes?  To answer this, we collected 78,000 abstracts from journal articles, processed them using DBpedia Spotlight, and created matrices showing which organisms are co-mentioned in abstracts with particular technologies and applications. The full presentation is available here.


17:15 - 18:00

Closing session & networking

18:00 +

Continue networking in a near pub over beer


During the SEMANTiCS 2016 in Leipzig, Sep 12-15, the DBpedia community will get together on the 15th of September for the 7th edition of the DBpedia Community Meeting.

After years of discussion, the DBpedia community has finally found cocnsensus on how to step into the future. During this meeting, we will come together to celebrate this achievement and also discuss and hold a vote to fill the DBpedia Association with life. Other subjects will reflect the efforts of the DBpedia community on a general Public Data Infrastructure for a large, multilingual, Semantic Knowledge Graph. In addition, there will be a showcase session on current developments and a DBpedia Dev session about technical issues and challenges in DBpedia as well as hands-on tutorials for DBpedia newbies.

Submission are open

Highlights include:

  • DBpedia Ontology Discussion: The DBpedia Ontology and current developments in ontology management will be adressed by special guest Monica Solanki from Oxford University, a leading expert in this field.
  • DBpedia & DBpedia+ Data Stack (v. 2016-04) release
  • DBpedia Spotlight session dedicated to setting an agenda for future sptlight development. 
  • Discussion about fundraising and how funding is acquired by the  DBpedia Community
  • A vote for the seats in the board of trustees
  • Tutorials to learn about DBpedia and its tools
  • Two keynotes that showcase the usefullness of DBpedia in real world appliactions. 
  • Space for the community to show their tools and success in presentations and posters

The success of the last two community meetings in Palo Alto with approx. 100 attendees and in The Hague with 120 attendees and the increasing number of specific language chapters proves that the DBpedia community is constantly growing and gaining more and more significance and impact in the Semantic Web Community.


Quick facts

Main Conference 

The DBpedia Meeting is part of the SEMANTiCS 2016 conference and will take part on the last day.


If you would like to become a sponsor for the 7th DBpedia Meeting, please contact the DBpedia Association


University of Leipzig

For hosting the meeting


ALIGNED - Software and Data Engineering

For funding the development of DBpedia as a project use-case and covering part of the travel cost

Institute for Applied Informatics

For supporting the DBpedia Association

OpenLink Software

For continuous hosting of the main DBpedia Endpoint

SEMANTiCS 2016: 12-15 Sep in Leipzig

For hosting and sponsoring the meeting.





  • Monika Solanki, University of Oxford, DBpedia Ontology
  • Julia Holze, DBpedia Association
  • Dimitris Kontokostas, AKSW/KILT, DBpedia Association
  • Sebastian Hellmann, AKSW/KILT, DBpedia ASsociation


Attending the DBpedia Community meeting is free, but you need to register. You can optionally choose a DBpedia support ticket.

Call for Contribution

Please submit your proposal through our web form.
Contribution proposals include (but not limited to) presentation, posters, demos, lightning talks and session suggestions.

Location / Venue

The meeting will take place at Augustusplatz 10, 04109 Leipzig, Germany. See here for detailed directions.

Getting to the meeting by plane, you can use the airport Leipzig/Halle, it is about 30 minutes away (by car) from the city centre of Leipzig. InterCity and regional trains run regularly between airport and central station. The Berlin Airport is about 2 hours away, Airport Frankfurt or Airport Hanover are about 3.5 hours away by train. See here for detailed directions.

Read the final report of the 6th DBpedia community meeting in The Hague on our blog: 6th DBpedia Community Meeting in The Hague 2016

We should not have both classes. That is a bug in the ontology and should be fixed. Anybody can fix the ontology through the mapping wiki (mappings.dbpedia.org)

There is a current debate about this in the i18n committee. The current solution is to generate the triples under http://es.dbpedia.org/resource/Berlin, and set sameAs links to http://dbpedia.org/resource/Berlin. My preferred solution would be to bypass this step at least in cases where we're more confident that the link is true (for example with bidirectional language links). Feel free to join the discussion.

DBpedia will be part of the 19th International Conference on Business Information Systems (6-8 July 2016) at the University of Leipzig. The conference addresses a wide scientific community and experts involved in the development of business computing applications. The three-day conference program is a mix of workshops, tutorials and paper sessions. Following, you will find more information about the DBpedia tutorial:


Wednesday, July 6th, 2016


University of Leipzig, Augustusplatz 10, 04109 Leipzig


Online registration and payment are available in the BIS 2016 Shop.


DBpedia Tutorial on Semantic Knowledge Integration in established Data (IT) Environments

Enriching data with a semantic layer and linking entities is key to what is loosely called Smart Data. An easy, yet comprehensive way of achieving this is the use of Linked Data standards.

In this DBpedia tutorial, we will introduce

  • the basic ideas of Linked Data and other Semantic Web standards
  • existing open datasets that can be freely reused (including DBpedia of course)
  • software and services in the DBpedia infrastructure such as the DBpedia SPARQL service, the lookup service and the DBpedia Spotlight Entity Linking service
  • common business use cases that will help to apply the learned lessons into practice
  • integration example into a hypothetical environment

In particular, we would like  to show how to seamlessly integrate Linked Data technologies into existing IT- and data-environments and discuss how to link private corporate data knowledge graphs to DBpedia and Linked Open Data. Another special focus is on finding links in text and unstructured data.

Interesting links:


2 x 90 minutes (half day)

Target audience

  • Practitioners that would like to learn about linked data and take home the know-how to apply it in their organisation
  • Researchers and students that would like to use linked data in their research


The tutorial is held by core members of the DBpedia Association and members of the AKSW/KILT research group in the context of three large research projects:

Markus Freudenberg (main contact: freudenberg@informatik.uni-leipzig.de), Markus Ackermann, Kay Müller, Sebastian Hellmann, AKSW/KILT, Leipzig University

What happens if you map only one? Maybe the infobox itself is doing some resolution there? When you say you get two triples, do you mean you get one for the http://dbpedia.org/ontology namespace and one for the http://dbpedia.org/property namespace? That is expected. One is for the mapped and one for the non-mapped property.

In DBpedia-Live, we reprocess all the changed pages we get from Wikipedia update stream, and we also reprocess the pages that are affected by a mapping change. The pages we get from Wikipedia update stream have higher priority, so they are reprocessed first. So, the pages affected by a mapping may take a few minutes to get reprocessed depending on how many live page are waiting for reprocessing, but it will not take long to appear.

  1. Add your URLs to the table of chapters: http://wiki.dbpedia.org/Intern[..]ation/Chapters?v=35e
  2. Add your name to the contacts: http://dbpedia.org/Internationalization
  3. Subscribe to the dbpedia-developers list and send a pull request for modifications you've made to the code
  4. Add to the wiki any instructions that were missing when you started, adding the things that you had to figure out yourself
  5. Create a page acknowledging the mapping editors and other people that supported the creation of your chapter
  6. Whenever your URIs are dereferenceable under ??.dbpedia.org/resource/* and you have a SPARQL endpoint running under ??.dbpedia.org/sparql, send an e-mail to the dbpedia-developers list with your IP and we will set up the proper DNS pointers.

Generalized dumps for the entire (Internationalized) DBpedia usually happen twice a year. The international chapters are free to release their data in any release cycle they see fit. So you may just run the extraction framework on your side and tell us how many triples you get. :)

Yes. We do that for the DBpedia Portuguese. Ask Pablo Mendes for the script he uses to grab that info from mappings.dbpedia.org

De negende DBpedia Community Meeting vindt in 2017 plaats in Galway, Ierland. Zoals gebruikelijk is deze Meeting onderdeel van een grotere conferentie, ditmaal de  Language, Data and Knowledge Conference, die gedurende de twee voorafgaande dagern, 19 en 20 juni, gehouden wordt.

OKCon, now in its fifth year, is the interdisciplinary conference that brings together individuals from across the open knowledge spectrum (such as also DBpedia in particular and Linked Open Data in general) for a day of presentations and workshops.Open knowledge promises significant social and economic benefits in a wide range of areas from governance to science, culture to technology. Opening up access to content and data can radically increase access and reuse, improving transparency, fostering innovation and increasing societal welfare.

In addition to high profile initiatives such as Wikipedia, OpenStreetMap and the Human Genome Project, there is enormous growth among open knowledge projects and communities at all levels. Moreover, in the last year, many governments across the world have begun opening up their data.

And it doesn’t stop there. In academia, open access to both publications and data has been gathering momentum, and similar calls to open up learning materials have been heard in education. Furthermore, this gathering flood of open data and content is the creator and driver of massive technological change. How can we make this data available, how can we connect it together, how can we use it collaborate and share our work?

Van 11-14 september 2017 wordt de jaarlijkse Semantics conferentie gehouden, deze keer in Amsterdam. Locatie is de Vrije Universiteit en het programma wordt deze maand (februari) bekend gemaakt.

This is probably a confusion between infobox property and DBpedia property. The dbprop (http://dbpedia.org/property) namespace should be read as "infobox property", while the http://dbpedia.org/ontology namespace is the one that contains the DBpedia properties. You can only map infobox properties to DBpedia Ontology properties.

Check if the host xx.dbpedia.org (xx for language code) is definied in Virtuoso Web Server. Go to the conductor interface (http://xx.dbpedia.org/conductor), tab Web Application Server, subtab Virtual Domains & Directories.

You can patch the Date and Decimal extractors to take some i18n config params.
I guess that is not too much effort in the parser.

See question about erroneous data. In addition, check which infoboxes are present in the Wikipedia page that correspond to the DBpedia resource you are analyzing. Make sure that these infoboxes are mapped in mappings.dbpedia.org. If not, feel free to add a mapping yourself. It is a wiki, everybody can help (you need to first ask for a username and editor rights, so that we can control spam).

First, check if the value in live.dbpedia.org is also wrong. The "dbpedia.org" major releases only happens every 6 months, so it is possible that the Wikipedia page was changed after that. You can check the date for each dbpedia.org release in http://wiki.dbpedia.org/Downloads37
Second, you should know that the extraction process is susceptible to errors, as Wikipedia users may fill in values in different formats. For example, the number three thousand could be spelled as "3000", "3 000", "3.000" or "3,000" just to cite a few examples. If you want to fix a mistake on DBpedia, you can go directly to the source and edit it there (Wikipedia), or you can add the ability for an extractor to deal with yet another way to express the same thing. Here: http://dbpedia.hg.sourceforge.[..]/extraction/mappings

Datum: 9 februari 2017

Plaats: Kadaster Amsterdam


Net als bij de eerste Unconference bij TNO in Soesterberg zal Bart van Leeuwen van Netage deze dag begeleiden en bepalen de deelnemers aan de Unconference zelf het programma van die dag. Dit kunnen vraagstukken en/of knelpunten zijn uit de eigen werkomgeving die actueel zijn en waar men met behulp een aantal Linked Data experts op 9 februari goede input voor kan krijgen en waar men met de deelnemers afspraken kan maken om deze vraagstukken met elkaar verder uit te werken na de Unconference. Een leuke, open, innovatieve, creatieve en productieve manier om met elkaar samen te werken die tot verrassende en goede resultaten kan leiden.

De Week van het Digitaal Erfgoed is een week van presentaties en workshops over hoe je erfgoed digitaal maakt en over hoe je digitaal erfgoed als een geheel aan je publiek aanbiedt. Sommige workshops gaan expliciet over Linked Open Data, zoals de Workshop Linked Open Data met film van EYE en het Nationaal Archief. Zie voor meer informatie http://weekvanhetdigitaalerfgoed.nl/13-april/ . Locatie van de Linked Data Workshop is: Eye Collectiecentrum, Asterweg, Amsterdam Noord

The answer is here: http://mappings.dbpedia.org/in[..]p/Mapping_Statistics
"...the statistics contain non relevant templates like Unreferenced or Rail line. These templates aren't classical infoboxes and shouldn't affect the statistics. On that account they can be ignored. If a template is on the ignore list, it does not count for the number of potential infoboxes."

For many resources there are values for properties under two namespaces: dbpprop (http://dbpedia.org/property/) and dbpedia-owl (http://dbpedia.org/ontology/). The first (dbprop) contains the value extracted from the infobox (as raw as the extraction framework can make it). The second (dbpedia-owl) contains the mapped property. Since different infoboxes may use different property names for the same attribute, we map them to a consistent ontology via mappings.dbpedia.org.

They should show up in live.dbpedia.org nearly immediate (in some cases it may take a few minutes) and on dbpedia.org in the next release (usually twice a year for the larger project, and as frequent as you want for your localized version).