Formal Models of Knowledge Diversity

The First International Workshop on Formal Models of Knowledge Diversity will be a part of JOWO 2022 (August 15-19, 2022 ).

About FMKD

FMKD@JOWO intends to create a space of confluence and a forum for discussion for researchers interested in knowledge diversity in a wide sense, including diversity in terms of diverging perspectives, different beliefs, semantic heterogeneity and others. The importance of understanding and handling the different forms of diversity that manifest between knowledge formalisations (ontologies, knowledge bases, or knowledge graphs) is widely recognised and has led to the proposal of a variety of systems of representation, tackling overlapping aspects of this phenomenon.

Besides understanding the phenomenon and considering formal models for the representation of knowledge diversity, we are interested in the variety of reasoning problems that emerge in this context, including jointly reasoning with possibly conflicting sources, interpreting knowledge from alternative viewpoints, consolidating the diversity as uncertainty, reasoning by means of argumentation between the sources and pursuing knowledge aggregations among others.

A non-exhaustive list of topics of interest for the workshop:

  • Philosophical and cognitive analysis of knowledge diversity.

  • Formal models for the representation of knowledge diversity.

  • Ontological approaches capturing multiple perspectives and viewpoints.

  • Context and concept formation in such systems.

  • Consistency (or not) in multi-perspective systems; assessment and mitigation of inconsistencies.

  • Communication between knowledge-diverse systems.

  • Argumentation-based approaches for dealing with inconsistency

  • Aggregation of diverse or inconsistent knowledge; judgement aggregation.

  • Uncertainty in the context of knowledge diversity.

  • Applications of formal models of knowledge diversity.


The workshop will take place on Friday, the 19th of August (Room 1)
The full JOWO program is accessible here.

09:00 Coffee & Refreshments (30 min)

09:30 Session 1 (60 min)

Keynote: Sebastian Rudolph – JOWO Keynote invited by the FMKD workshop

Title: The Matrix Has You – Toward Compositional Conceptual Spaces

10:30 Coffee Break (30 min)

11:00 Session 2 (90 min)

11:00 - Measuring and controlling knowledge diversity. Yasser Bourahla, Jérôme David, Jérôme Euzenat and Meryem Naciri

11:40 - Representation Heterogeneity. Fausto Giunchiglia and Mayukh Bagchi

12:30 Lunch (90 min)

14:00 Session 3 (90 min)

14:00 - A Generalized Condorcet Jury Theorem for Belief Fusion. Karge Jonas and Sebastian Rudolph

14:25 - Reference, Predication and Quantification in the Presence of Vagueness and Polysemy. Brandon Bennett

15:00 - Epistemic accessibility: an epistemic theory of belief. Wai Lok Cheung

15:30 Coffee Break (30 min)

Call for Papers

Important dates

  • Papers due: June 26th, 2022 (extended deadline)

  • Notification to authors: July 20th, 2022 (extended deadline)

  • August 5, 2022 – Submission of the camera-ready version.

  • August 15-19, 2022 – JOWO


We encourage three types of contributions:

  • Full research paper: Submitted papers must not exceed 14 pages excluding the bibliography, and must include an abstract of no more than 300 words. Please, note that the minimum length is 10 pages.

  • Short paper: Submitted papers must not exceed 6 pages excluding the bibliography, and must include an abstract of no more than 300 words. Please, note that the minimum length is 5 pages (including the bibliography).

  • Extended abstracts (presentation only) should be 2-4 pages long including the bibliography. Please, note that extended abstracts will not be included in the CEUR proceedings.

All papers must be original and not submitted to or accepted by any other workshop, conference or journal. Note, that for inclusion in the JOWO proceedings, short and position papers are required to be at least 5 pages long. All contributions will be peer-reviewed, and the review process will be managed in a collaborative and transparent manner using the EasyChair System as part of the JOWO organisation.

The submission link is

Papers should be submitted non-anonymously in PDF format in compliance with the new 1-column CEUR-ART Style. Word and Latex templates can be found at

All contributions to JOWO workshops (full and short papers) will be published in a joint CEUR proceedings volume, compare:

JOWO 2021:

JOWO 2020:

JOWO 2019:


PC Members

  • Brandon Bennett, University of Leeds, UK

  • Jérôme Delobelle, Université de Paris, LIPADE, Paris, France

  • Sarah Alice Gaggl, TU Dresden, Germany

  • Daniele Porello, University of Genova, Italy

  • Sebastian Rudolph, TU Dresden, Germany

  • Nicolas Troquard, Free University of Bozen-Bolzano, Italy


JOWO 2022 will be held 15-19 August 2022 in Jönköping University, Sweden.

Photo by Kontrastfoto Ljungby on behalf of Högskoleservice i Jönköping AB, CC BY-SA 3.0,