Join us virtually on Sept. 6 for EJC-Summer School
and for the
31st International Conference on
Information Modelling and Knowledge Bases, Sept. 7-9, 2021

The 31st International Conference on Information Modelling and Knowledge Bases

EJC 2021 Hamburg, Germany

The book Information Modelling and Knowledge Bases XXXIII is now available (free download, open access):

Paper versions of the book are available from the publisher (IOS Press); authors get it for a special author price.

Due to the regulations regarding the coronavirus pandemic, EJC 2021 will be transformed into a virtual event taking place on September 7-9, 2021.

Combined with the 1st AI CONSORTIUM and SUMMER SCHOOL on September 6


Information modelling is becoming more and more important topic for researchers, designers, and users of information systems.
The amount and complexity of information itself, the number of abstraction levels of information, and the size of databases and knowledge bases are continuously growing. Conceptual modelling is one of the sub-areas of information modelling.
The aim of this conference is to bring together experts from different areas of computer science and other disciplines, who have a common interest in understanding and solving problems on information modelling and knowledge bases, as well as applying the results of research to practice.
We also aim to recognize and study new areas on modelling and knowledge bases to which more attention should be paid. Therefore philosophy and logic, cognitive science, knowledge management, linguistics and management science are relevant areas, too. In the conference, there will be three categories of presentations, i.e. full papers, short papers and position papers.


The series of European – Japanese Conference on Information Modelling and Knowledge Bases (EJC) originally started as a co-operation initiative between Japan and Finland in 1988 as a continuum to the series of Scandinavian conferences since 1982. The practical operations were then organized by professor Ohsuga in Japan and professors Hannu and Hannu Jaakkola in Finland. Geographical scope was expanded to cover first Europe and further other countries.

Working principles

The total number of participants is limited to 50 (30 papers). We want to provide time enough for the presentations and discussions. The conference is an excellent forum for networking with active research community in this important topic area. The authors must present their paper at the conference. The papers are published first by the local organizers as the conference (e-)proceedings and after the conference the improved versions of the papers in a journal print in the Series of "Frontiers in Artificial Intelligence" by IOS Press (Amsterdam). The books "Information Modelling and Knowledge Bases Vol. n" are edited by the Editing Committee of the conference.

Important dates (new):

  • Submission deadline: April 30th, 2021
  • Acceptance letters: May 30th, 2021
  • Final paper for preprint: Juli 31st, 2021
  • Registration deadline: Will be informed by the organizers
  • Final paper for IOS Journal print: October 10th, 2021

Local arrangements:

HAW Hamburg, Germany

Contact person:

Prof. Marina Tropmann-Frick


Local arrangements

Prof. Dr. Marina Tropmann-Frick
Professor for Data Science
Department of Computer Science
University of Applied Sciences Hamburg

Tel.: +49 40 428758418
E-Mail: Marina.Tropmann-Frick [at]

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