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12th European Networked Knowledge Organization Systems (NKOS) Workshop

26th September 2013 in Valetta, Malta

Workshop website:


NKOS is a full-day workshop of research projects and development related to next-generation Networked Knowledge Organization Systems/Services (NKOS) in digital libraries. The 12th European NKOS workshop at TPDL explores the potential of Knowledge Organization Systems, such as classification systems, taxonomies, thesauri, ontologies, and lexical databases. These tools attempt to model the underlying semantic structure of a domain for purposes of information retrieval, knowledge discovery, language engineering, and the semantic web. The workshop provides an opportunity to report and discuss projects, research, and development related to Networked Knowledge Organization Systems/Services in next-generation digital libraries.

Call for Papers

Proposals are invited for the following:

  1. Presentations (typically 20 minutes plus discussion time, potentially longer if warranted) on work related to the themes of the workshop (see below). An option for a short 5 minute project report presentation is also possible.
  2. Demos on work related to the themes of the workshop (see below).

Please email proposals (maximum 1000 words for presentations and 500 words for demos, including aims, methods, main findings and underlying work, relevance to themes of workshop) by Monday 24th June 2013 to Philipp Mayr ( Proposals will be peer-reviewed by the programme committee and notification of acceptance will be given by Monday 22nd July 2013. At least one presentation author needs to register for the workshop by Friday 23rd August 2013.

After the workshop, copies of presentations will be made available on the workshop website. Presentations from the workshop may be encouraged to be submitted as extended papers for peer reviewed journal publication.

Themes for the 12th NKOS workshop will be:

  1. Meaningful Concept Display and Meaningful Visualization of KOS. Visualization has been an important application domain for KOS and often a driver for KOS use in Digital Libraries. Reports of innovative demonstrators, implementation issues and evaluation studies with real users are particularly welcome.
  2. KOS-based recommender systems. We are seeing the utilization of KOS-based search term recommender systems as a semantic hub in DL. The suggestion of the right meaningful concepts is a mission critical phase for searchers in modern DL. We want to discuss both perspectives: the consumptive side of the user and the technical side of DL operators. Reports of practical experience, implementation issues and evaluation studies are particularly welcome.

Further timely presentations/demonstrations could be selected from the following topics:

  1. Management and integration of multiple vocabulary types, such as classification systems, thesauri, terminologies, synonym rings etc. Typologies and spectra of KOS. KOS Registries.
  2. SKOS extensions. What extensions to SKOS would be needed to cover advanced mapping and vocabulary integration, additional KOS types and other actual requirements?

KOS applications are a regular and important part of NKOS workshops. Example topics include:

  1. KOS in e-Research metadata contexts. The intersection between research data, KOS and Semantic web.
  2. Social tagging. What is the role of social tagging and informal knowledge structures versus established KOS? (How) can tagging be guided and informed by KOS? The possible contribution of social tagging and informal knowledge structures to constructing / augmenting established KOS. Implications for social search.
  3. Users interaction with KOS in the online environment, visualisation issues.
  4. Quality issues in web-based KOS. How to identify and detect shortcomings in data quality and what to do to improve KOS on the web? Issues concerning large metadata sets. Version management.
  5. KOS and learning. What is required to use KOS effectively to convey meaning, to assist users to express their information needs to assist in sensemaking and learning?
  6. Multilingual and Interdisciplinary KOS applications and tools.
  7. Specific domains, such as environmental, medical, new application contexts, etc.

Important Days

Submission deadline: June 24, 2013 Deadline extended to July 22, 2013
Notification of acceptance: July 22, 2013
Workshop: September 26, 2013 (full day)

Workshop Chairs

  • Philipp Mayr, GESIS - Leibniz Institute for the Social Sciences, Germany
  • Douglas Tudhope, Faculty of Advanced Technology, University of Glamorgan, Wales, UK


  • Ceri Binding, University of Glamorgan, UK
  • Stella Dextre Clarke, Information Consultant, Luke House, Wantage, UK
  • Claudio Gnoli, University of Pavia, Italy
  • Jane Greenberg, University of North Carolina, USA
  • Bernhard Haslhofer, University of Vienna, Austria
  • Daniel Hienert, GESIS, Germany
  • Antoine Isaac, Vrije Universiteit Amsterdam and National Library of the Netherlands, The Netherlands
  • Daniel Kless, University of Melbourne, Australia.
  • Vivien Petras, Humboldt University, Berlin, Germany
  • Philipp Schaer, GESIS, Germany
  • Aida Slavic, UDC Consortium, London, UK
  • Johan De Smedt,, Belgium
  • Dagobert Soergel, University of Buffalo, USA
  • Joseph Tennis, Information School, University of Washington, USA
  • Marcia Zeng, Kent State University, USA
For more detailed information about the workshop you can visit the workshop webpage at

Platinum sponsor

Government of Malta - Ministry for Finance

Golden sponsor

Malta Tourism Authority Visit Malta

Springer LNCS
JCDL 2013, Indiana, USA
ICADL 2013, Bangalore, India
MTSR 2013, Thessaloniki, Greece
SIGIR 2014, Gold Coast, Australia
ELPUB 2014, Thessaloniki, Greece

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Organized by the University of Malta in partnership with COST - European Cooperation in Science and Technology.

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