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A picture is worth a thousand words, we often say, yet many areas are in demand of sophisticated visualization techniques, and the Semantic Web is not an exception. The size and complexity of ontologies and Linked Data in the Semantic Web constantly grows and the diverse backgrounds of the users and application areas multiply at the same time. Providing users with visual representations and intuitive interaction techniques can significantly aid the exploration and understanding of the domains and knowledge represented by ontologies and Linked Data.

Ontology visualization is not a new topic and a number of approaches have become available in recent years, with some being already well-established, particularly in the field of ontology modeling. In other areas of ontology engineering, such as ontology alignment and debugging, although several tools have been developed, few provide a graphical user interface, not to mention navigational aids or comprehensive visualization and interaction techniques.

In the presence of a huge network of interconnected resources, one of the challenges faced by the Linked Data community is the visualization of multidimensional datasets to provide for efficient overview, exploration and querying tasks, to mention just a few. With the focus shifting from a Web of Documents to a Web of Data, changes in the interaction paradigms are in demand as well. Novel approaches also need to take into consideration the technological challenges and opportunities given by new interaction contexts, ranging from mobile, touch, and gesture interaction to visualizations on large displays, and encompassing highly responsive web applications.

There is no one-size-fits-all solution but different use cases demand different visualization and interaction techniques. Ultimately, providing better user interfaces, visual representations and interaction techniques will foster user engagement and likely lead to higher quality results in different applications employing ontologies and proliferate the consumption of Linked Data.

This year, we plan to have a dedicated look on empirical evidence on the benefits and limitations of visualizations and interactions in the context of the Semantic Web. We are particularly interested in success and failure stories, in learning which visualization and interaction approaches work and which do not - to which extent and in which contexts. We would like to hear about novel research findings and insights, backed with empirical data from user studies and use cases. Submissions addressing this special theme could include one or more of the following:

  • success stories
  • failure stories
  • empirical studies

We also welcome other research contributions providing empirical evidence that advances the field.

Apart from that - and as in the last years -, we are looking for submissions addressing one or more of the following topics, subjects, and contexts (or related ones):

  • Topics:
    • visualizations
    • user interfaces
    • visual analytics
    • requirements analysis
    • case studies
    • user evaluations
    • cognitive aspects
  • Subjects:
    • ontologies
    • linked data
    • ontology engineering (development, collaboration, ontology design patterns, alignment, debugging, evolution, provenance, etc.)
  • Contexts:
    • classical interaction contexts (desktop, keyboard, mouse, etc.)
    • novel interaction contexts (mobile, touch, gesture, etc.)
    • special settings (large, high-resolution, and multiple displays, etc.)
    • specific user groups and needs (people with disabilities, domain experts, etc.)

Paper submission and reviewing for this workshop will be electronic via EasyChair. The papers should be written in English, following the Springer LNCS format, and be submitted in either PDF or in HTML on or before June 8, 2018 (extended). Abstracts are due on on or before June 3, 2018 (extended). All deadlines are midnight Hawaii time.

For details on the PDF submission format, see Springer's LNCS guidelines. For HTML submission guidance, see the HTML submission guide of ISWC 2018.

The following types of contributions are welcome. The recommended page length is given in brackets. There is no strict page limit but the length of a paper should be commensurate with its contribution.

  • Full research papers (8-12 pages);
  • Experience papers (8-12 pages);
  • Position papers (6-8 pages);
  • Short research papers (4-6 pages);
  • System papers (4-6 pages).

It is recommended to include a (persistent) URL to a working implementation or an (annotated) screencast for submissions presenting interactive visualizations, user interfaces, tools, etc.

Accepted papers will be published as a volume in the CEUR Workshop Proceedings series. See CEUR-WS volume 1947 for the proceedings of last year's VOILA workshop.

Note that for the second time this year ISWC offers a registration *only* for the workshops and tutorials days. For details please visit the ISWC registration page.

Valentina Ivanova, RISE Research Institutes of Sweden
Patrick Lambrix, Linköping University, Sweden
Steffen Lohmann, Fraunhofer IAIS, Germany
Catia Pesquita, University of Lisbon, Portugal
Craig Anslow, Victoria University of Wellington, New Zealand
Nikos Bikakis, ATHENA Research Center, Greece
Isabel F. Cruz, University of Illinois at Chicago, USA
Kārlis Čerāns, University of Latvia, Latvia
Aba-Sah Dadzie, Knowledge Media Institute, The Open University, UK
Aidan Delaney, University of Brighton, UK
Marek Dudáš, University of Economics, Prague, Czech Republic
Roberto García, Universitat de Lleida, Spain
Alain Giboin, Universitó Côte d'Azur, Inria, CNRS, I3S, France
Anika Groß, University of Leipzig, Germany
Ali Hasnain, The Insight Centre for Data Analytics, Ireland
Eero Hyvönen, Aalto University & University of Helsinki, Finland
Ali Khalili, Vrije Universiteit Amsterdam, The Netherlands
Francesco Osborne, Knowledge Media Institute, The Open University, UK
Paul Parsons, Purdue University, USA
Silvio Peroni, University of Bologna, Italy
Emmanuel Pietriga, INRIA Saclay, France
Harald Sack, Leibniz Institute for Information Infrastructure & KIT Karlsruhe, Germany
Daniel Schwabe, Pontifical Catholic University of Rio de Janeiro, Brazil
Kamran Sedig, University of Western Ontario, Canada
Ahmet Soylu, Norwegian University of Science and Technology, Norway
Gem Stapleton, University of Brighton, UK
Dhavalkumar Thakker, University of Bradford, UK
Markel Vigo, University of Manchester, UK
Simon Walk, Stanford University, USA

Important Dates

  • Abstract: June 3, 2018 (extended)
  • Submission: June 8, 2018 (extended)
  • Notification: June 27, 2018
  • Camera-ready: July 20, 2018
  • Workshop: October 8, 2018
 (All deadlines are midnight Hawaii time.)

VOILA 2017

VOILA 2017 impressions   VOILA 2017 website

VOILA 2016

VOILA 2016 impressions   VOILA 2016 website

VOILA 2015

VOILA 2016 impressions   VOILA 2015 website