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 semantic data—Ontologies, Linked Data and Knowledge Graphs—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 semantic data.

Visualizing Ontologies, Linked Data or Knowledge Graphs 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 Semantic Web 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 semantics, and proliferate the consumption of Ontologies, Linked Data and Knowledge Graphs.

Workshop proceedings are published as CEUR Workshop Proceedings, vol. 3508, CEUR-WS.org, 2023.

The workshop will take place on November 6th, 14:00 - 17:15 (Athens Time), Room: MC3.2.

14:00 - 14:10 Opening and Introduction

Session 1: Visualization and User Interaction in Semantic Tools (portals, user interfaces)

14:10 - 14:30 Visualizing Literary Linked Data for Public Library Users in the New User Interface for BookSampo – Finnish Fiction Literature on the Semantic Web
by Annastiina Ahola and Eero Hyvönen

14:30 - 14:50 How to create easily a data analytic semantic portal on top of a SPARQL endpoint: introducing the configurable Sampo-UI framework
by Heikki Rantala, Annastiina Ahola, Esko Ikkala and Eero Hyvönen

14:50 - 15:05 Integrating Sparklis and ViziQuer for Enhanced SPARQL Querying and Visualization
by Uldis Bojārs, Jūlija Ovčiņņikova, Lelde Lāce, Artūrs Sproģis, Mikus Grasmanis and Kārlis Čerāns

15:05 - 15:20 Towards A Knowledge Graph-based Exploratory Search for Privacy Engineering
by Guntur Budi Herwanto, Fajar J. Ekaputra, Florina Piroi and Marta Sabou

15:20 - 16:00 Break

Session 2: Visual Representations

16:00 - 16:20 Towards a UML-based notation for OWL ontologies
by María Poveda-Villalón, Serge Chávez-Feria, Sergio Carulli-Pérez and Raúl García-Castro

16:20 - 16:35 A Method of Visual Presentation of Data Schemas
by Lelde Lāce, Aiga Romāne, Mikus Grasmanis and Kārlis Čerāns

16:35 - 16:50 Tree Visualization of Patient Information for Explainability of AI Outputs
by Sandeep Ramachandra, David Vander Mijnsbrugge, Pieter-Jan Lammertyn, Stijn Dupulthys, Femke Ongenae and Sofie Van Hoecke

16:50 - 17:05 Visualizing Ontology Metrics In The NEOntometrics Application
by Achim Reiz and Kurt Sandkuhl

17:05 - 17:15 Closing

Topics, subjects, and contexts of interest include (but are not limited to):

Topics:

visualizations
user interfaces
visual analytics
requirements analysis
case studies
user evaluations
cognitive aspects

Subjects:

ontologies
linked data
knowledge graphs
ontology engineering

Contexts:

classical interaction contexts (desktop, keyboard, mouse, etc.)
modern interaction contexts (mobile, touch, gesture, speech, 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 are organized via EasyChair. The papers should be written in English, following the CEUR-WS one-column template. Abstracts should be submitted by July 28, 2023 while the paper in PDF should be submitted by July 31, 2023.
All deadlines are midnight Anywhere on Earth time.

For details on the PDF submission format, see The New CEURART Style.

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.
Note that according to the CEUR conditions, papers shorter than 10 pages will be marked as 'short papers'.

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) URI 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, as in previous years.

For details concerning the conference and/or workshop registration, please refer to the ISWC registration page.

Bo Fu, California State University Long Beach, USA
Patrick Lambrix, Linköping University, Sweden
Huanyu Li, Linköping University, Sweden
Susana Nunes, University of Lisbon, Portugal
Catia Pesquita, University of Lisbon, Portugal

Ali Hasnain, Royal College of Surgeon, Ireland
Kārlis Čerāns, University of Latvia, Latvia
Christophe Debruyne, University of Liège, Belgium
Roberto García, Universitat de Lleida, Spain
Mayank Kejriwal, University of Southern California, USA
Albert Navarro Gallinad, Trinity College Dublin, Ireland
Declan O'Sullivan, Trinity College Dublin, Ireland
Evan Patton, Massachusetts Institute of Technology, USA
Emmanuel Pietriga, INRIA, France
Harald Sack, FIZ Karlsruhe, Leibniz Institute for Information Infrastructure & KIT Karlsruhe, Germany
Ahmet Soylu, OsloMet – Oslo Metropolitan University, Norway
Markel Vigo, The University of Manchester, UK