International Conference on Information Modelling and Knowledge Bases (EJC)*

International Conference on Information Modelling and Knowledge Bases (EJC)*

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The International Conference on Information Modelling and Knowledge Bases (EJC), formerly the European-Japanese Conference/Seminar on Information Modelling and Knowledge Bases, the Joint Scandinavian Japanese Seminar on Information Modelling and Knowledge Bases, and initially the Scandinavian Research Seminar on Information Modelling and Database Management, brings 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. It further recognizes and studies 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.

The series of International Conference on Information Modelling and Knowledge Bases originally started as a co-operation initiative between Japan and Finland in 1982. The practical operations were then organized by professor Ohsuga in Japan and professors Hannu Kangassalo and Hannu Jaakkola in Finland. Geographical scope has expanded to cover Europe (European Japanese Conference – EJC) and also other countries (International Conference). Workshop characteristic – discussion, time enough for presentations and limited number of participants (50) / papers (30) – is typical to the conference.

The papers presented in the conference are published 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.

Conference History:

35th EJC International Conference 2025, June 9-13, 2025, Ostrava, Czech Republic

(Host: TBD)

    Conference program TBD

34th EJC International Conference 2024, June 10-14, 2024, Tokyo, Japan

(Host: Department of Data Science, Faculty of Data Science, Musashino University)

    Conference Sessions:
    Information Modelling
    Spatio-Knowledge Modelling

    Co-located Events:
    Asia-Europe Summer School & Panel Discussion Workshop of the AI Consortium & 5D World Map System, Jun 10

33rd EJC International Conference 2023, June 5-9, 2023, Maribor, Slovenia

(Host: Institute of Informatics, Faculty of Electrical Engineering and Computer Science, University of Maribor)

    Conference Sessions:
    Data Mining and Data Analysis
    Communication and Collaboration

    Pre-conference Events:
    EJC2023 Summer School – AI Consortium & 5D World Map System

32nd EJC International Conference 2022, May 30 – June 3, 2022, Hamburg, Germany / Virtual venue

(Host: Department of Computer Science, University of Applied Sciences Hamburg)

    Conference Sessions:
    Intelligent Support

    Conference Papers:
    An Exploratory Research on the Expression of Knowledge and Its Generation Process based on the Concept of “Dark-matter”
    BigRobot Mk.2 Emulation of Embodied Knowledge of a Walking Giant

    Co-located Events: (May 30, online)
    EJC Summerschool: AI Consortium & 5D World Map System Asia-Europe Summer School 2022

31st EJC International Conference 2021, September 7-9, 2021, Hamburg, Germany Virtual venue

(Host: Department of Computer Science, University of Applied Sciences Hamburg)

    Note: The on-site conference was originally scheduled for September 6-10, 2021 and June 7-11, 2021

    Conference Sessions:
    Smart cities

    Conference Papers:
    A Knowledge-Model for AI-Driven Tutoring Systems
    Deep Learning for Knowledge Extraction from UAV images
    On Semantic Spatiotemporal Space and Knowledge with the Concept of “Dark-matter”

    Co-located Events: (Sep 6)
    EJC / Asia-Europe Summer School 2021

30th EJC International Conference 2020, June 8-9, 2020, Hamburg, Germany Virtual venue

(Host: Department of Computer Science, University of Applied Sciences Hamburg)

    Note: The on-site conference was originally scheduled for June 8-12, 2020

    Conference Sessions:
    Titles n.a.

    Conference Papers:
    A Natural Logic System for Large Knowledge Bases

29th EJC International Conference 2019, June 3-7, 2019, Lappeenranta University of Technology, Lappeenranta, Finland & St. Petersburg, Russia

(Host: School of Business and Management, Lappeenranta University of Technology)

    Note: Due to unavoidable circumstances the group tour to St.Petersburg during the conference has been cancelled.

    Conference Sessions:
    Learning and Linguistics
    Data and Knowledge Representation
    Formalization and Reasoning; Machine Learning

    Conference Papers:
    Influence of Educational Background on the Effectiveness of Learning Database Fundamentals
    A Study on an Evolution of a Data Collection System for Knowledge Representation
    On Logic Calculation with Semantic Space and Machine Learning. Machine Learning Using TIL

28th EJC International Conference 2018, June 4-8, 2018, Riga, Latvia

(Host: Transport and Telecommunication Institute)

    Conference Sessions:
    Mathematics and Data Mining
    Culture and Data Support
    Environment Science and Knowledge System

    Conference Papers:
    A Semantic Orthogonal Mapping Method Through Deep-Learning for Semantic Computing

27th EJC International Conference 2017, June 5-9, 2017, Krabi, Thailand

(Host: Museum of Imaging Technology)

    Conference program n.a.

    “Knowledge” Papers:

26th EJC International Conference 2016, June 6-10, 2016, Tampere, Finland

(Host: Department of Information Technology, Pori School of Technology and Economics, Tampere University of Technology)

    Conference program n.a.

    “Knowledge” Papers:
    Logic of Inferable Knowledge
    An Ontology-Driven Approach for Expert Knowledge Acquisition in the Medical Field

25th EJC International Conference 2015, June 8-12, 2015, Maribor, Slovenia

(Host: Institute of Informatics, Faculty of Electrical Engineering and Computer Science, University of Maribor)

    Conference Sessions:
    Information
    Analysis and Mining
    Intelligent Processing

    Panel Session:
    Cross-cultural and Environmental Data Analysis in Data Mining Processes for Global Resilient Society

24th EJC International Conference 2014, June 3-6, 2014, Kiel, Germany

(Host: Department of Computer Science, Information Systems Engineering, Christian-Albrechts University Kiel)

    Note: Name change from “European-Japanese” to “International” Conference…

    Conference program n.a.

    “Knowledge” Papers:
    Knowledge Support for Software Processes
    Visualization of Ontologies on the Basis of Cognitive Frames for Knowledge Transmission

23rd EJC European-Japanese Conference 2013, June 3-7, 2013, Nara, Japan

(Host: Faculty of Environmental Information, Keio University; Department of Computer Science, Tokyo Institute of Technology; Department of Information & Computer Sciences, Kanagawa Institute of Technology)

    Conference program n.a.

    “Knowledge” Papers:
    Knowledge Modeling of Agile Software Processes

22nd EJC 2012, June, 4-9, 2012, Prague, Czech Republic

(Host: Department of Software Engineering, Faculty of Mathematics and Physics, Charles University)

    Conference program n.a.

    “Knowledge” Papers:
    A Knowledge System on an Ontology in the Topic Maps Format
    Knowledge-base approach to software-process development based on TIL
    Testing and Evaluating Software in a Social Network Creating Baseline Knowledge
    Knowledge Mining of Web Service Usage

21st EJC 2011, June, 6-10, 2011, Tallinn, Estonia

(Host: n.a.)

    Conference program n.a.

    “Knowledge” Papers:
    Intelligent Icons for Cross-Cultural Knowledge Searching
    Cluster Analysis Systematisation for Data, Model and Knowledge Management
    Knowledge Base Modeling and Design Procedure
    Infrastructures for Knowledge Systems Environments

20th EJC 2010, 31 May – 4 June 2010, Jyväskylä, Finland

(Host: n.a.)

    Conference program n.a.

    “Knowledge” Papers:
    Future Directions of Knowledge Systems Environments for Web 3.0

19th EJC 2009, June 1-5, 2009, Maribor, Slovenia

(Host: Institute of Informatics, Faculty of Electrical Engineering and Computer Science, University of Maribor)

    Conference Sessions:
    Knowledge Analysis
    Knowledge Bases
    WWW and Knowledge System Modelling
    Ontology
    Information Modelling and Design

    Panel Discussions:
    Knowledge Grid Computing and Global Risk Management Applications (Tentative)
    Cross-Cultural Collaborative Systems

    “Knowledge” Papers:

    Detection of Difference between News Articles on the Same Topic Based on Sequential Comparison
    Context-Based Knowledge Creation and Sharing in Cross-Cultural Collaborative Communities
    Knowledge management in SOA systems

    A Context Dependent Dynamic Interconnection Method of Heterogeneous Knowledge Bases by Interrelation Management Function
    A Fixed-Point Query Language for XML

    Consistency in the Business System Model
    Integrating hierarchical data into multi-tier applications
    JoinSee: A Real-Time and Collaborative Hyper-Media System for Participatory Performances in the Opera of Meaning
    Adoption of Semantic Web Technologies for Developing Unified Medical Software Systems and Services

    Ontology Engineering Relationally
    Rapid Ontology Development
    Formal system of interactions on biomedical ontology
    Towards the Process-Ontological Modelling”

18th EJC 2008, June 2-6, 2008, Tsukuba, Japan

(Host: Multi Database and MultiMedia Database Research Group, Multidatabase Laboratory, Keio University)

    Conference Sessions:
    Knowledge Bases
    Information Modelling
    Knowledge Representation
    Knowledge Management
    Temporal and Semantic Databases
    Knowledge Systems
    Semantic Computing

    Panel Discussions:
    Multi-Agent Knowledge Modelling
    Discussions on Information Modelling and Knowledge Bases

    Invited Talks:
    Opera of meaning: film and music performance with semantic associative search
    Intelligence and Language – How Was Language Created

    “Knowledge Management” Session Papers:
    On Reducing Relationships to Property Ascriptions
    A Domain Specific Knowledge Space Creation Process for Semantic
    The Architecture of an Intelligent Agent in MAS

    “Knowledge” Papers:

17th EJC 2007, June 4-8, 2007, Pori, Finland

(Host: Department of Information Technology, Pori School of Technology and Economics, Tampere University of Technology)

    Conference program n.a.

    “Knowledge” Papers:
    Semantic knowledge modeling in medical laboratory environment for drug usage: CASE study
    A System Architecture for the 7C Knowledge Environment
    Knowledge Cluster Systems for Knowledge Sharing, Analysis and Delivery among Remote Sites
    Ontology-based Support of Knowledge Evaluation in Higher Education
    When Cultures Meet: Modelling Cross-Cultural Knowledge Spaces
    A Personal Web Information/Knowledge Retrieval System
    Manufacturing Roadmaps as Information Modelling Tools in the Knowledge Economy
    Information Modelling and Knowledge Bases for Interoperability Solution in Security Area

16th EJC 2006, May 29 – June 2, 2006, Trojanovice, Czech Republic

(Host: Department of Computer Science, Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava)

    Conference Sessions:
    Ontology
    Content Management
    Semantics
    Semantic Computing
    Time Concept, Fuzzy Logic and Ontology
    Semantic Search

    Panel Discussions:
    Logic & AI for Multi-Agent Systems
    Discussions on Information Modelling and Knowledge Bases

    “Knowledge” Papers:

15th EJC 2005, May 16-20, 2005, Tallinn, Estonia

(Host: n.a.)

    Conference program n.a.

    “Knowledge” Papers:
    Role of Models in Knowledge Transfer during OO Software Development
    Knowledge Entry Maps: structuring of method knowledge in the IT industry
    Strong Relevant Logic as the Universal Basis of Various Applied Logics for Knowledge Representation and Reasoning
    Describing Knowledge Architectures

14th EJC 2004, May 31 – June 4, 2004, University of Skövde, Skoevde, Sweden

(Host: Department of Computer Science, University of Skövde)

    Conference Sessions:
    Databases
    Semantics
    Information Modelling and Systems
    Knowledge Management

    “Knowledge Management” Session Papers:
    Ontology Driven Conceptual Matchmaking for Online Recruitment Problem,
    Knowledge Transfer between Networking Organizations – a Case Evaluated and Lessons Learned

    “Knowledge” Papers:
    An Empirical Study of Context Knowledge in Engineering Design
    An Analysis of ISD as Knowledge Work -How is the Body of Systems Development Process Knowledge Used?
    eTrium: Concepts and Knowledge in Practice

13th EJC 2003, June 3-6, 2003, Kitakyushu, Japan

(Host: Knowledge Engineering Laboratory, Kyushu Institute of Technology)

    Conference Sessions:
    Titles n.a.:

    “Knowledge” Papers:
    Methodological Tools for Describing Children’s Knowledge Construction
    Modelling a Process Repository for Enterprise Application Integration Based on Business Knowledge and Semantics

12th EJC 2002, May 27-30, 2002, Krippen, Germany

(Host: Department of Database and Information Systems, Faculty of Computer Science, Brandenburg University of Technology at Cottbus)

    Conference Sessions:
    Titles n.a.

    “Knowledge” Papers:
    Logic of Relevant Connectives for Knowledge Base Reasoning
    Intensional Logic as a Medium of Knowledge Representation and Acquisition in the HIT Conceptual Model
    A Semantic Search Space Integration Method for Metalevel Knowledge Acquisition from Heterogeneous Database
    Unifying Various Knowledge Discovery Systems in Logic of Discovery

11th EJC 2001 Maribor, Slovenia

(Host: Institute of Informatics, University of Maribor)

    Conference Sessions:
    Aspects of Information and Knowledge
    Ontology Engineering and Usage

    “Knowledge” Papers:
    Conceptual Modelling and Knowledge Management for Narrative Multimedia Documents
    A Practical Approach to Intelligent Multi-Task Systems -Structuring Knowledge Base and Generation of Problem Solving System
    Medical Knowledge Extraction via Hybrid Decision Trees

10th EJC 2000, May 8-11, 2000, Saariselkä, Finland

(Host: Department of Information Technology, Pori School of Technology and Economics, Tampere University of Technology)

    Conference Sessions:
    Reconstruction of Knowledge and a Query Method
    Domain models, Semantics Models, User Stereotype Modelling
    Knowledge Management and Knowledge Bases
    Explorative Learning, String Matching, Data Mining
    Knowledge Landscapes, Information Retrieval, Knowledge Discovery, Technical Systems Modelling, 3-D Modelling Shape
    Multilingual Cross-Language Information Retrieval

    “Knowledge” Papers:
    Modelling Knowledge Logistics for Knowledge Management
    Converting Ordinary Rules into Default Rules Based on Contradiction of Knowledge Base
    Knowledge Landscapes: A VR Interface for Web.Basred Training Knowledge Bases
    Logic-based Knowledge Discovery in Databases

9th EJC 1999, May 24-28, 1999, Iwate Prefectural University, Iwate, Japan

(Host: Faculty of Software and Information Science, Iwate Prefectural University)

    Conference program n.a.

    “Knowledge” Papers:
    Potential Role of Enterprise Model in Organisational Knowledge Processing
    Inductive Inference of Regular Term Tree Languages and Its Application to Knowledge Discovery
    nformation Systems Development as Knowledge Work: The body of systems development process knowledge

8th EJC 1998, May 26-29, 1998, Vammala, Finland

(Host: Department of Information Technology, Pori School of Technology and Economics, Tampere University of Technology)

    Conference Sessions:
    Titles n.a.

    “Knowledge” Papers:
    Shared engineering knowledge – concepts and framework
    Knowledge-Based Vision and Scheduling in Autonomous HumanType Service Robot

7th EJC 1997, May 27- 30, 1997, Toulouse 1 University, Toulouse, France

(Host: Centre d’Etudes et de Recherches Informatiques en Sciences Sociales, Université Toulouse 1)

    Conference program n.a.

6th EJC 1996, Hornbaek, Denmark

    Conference program n.a.

5th EJC 1995, Sapporo, Japan

    Note: Name change from European-Japanese “Seminar” to European-Japanese “Conference”…

    Conference program n.a.

4th European-Japanese Seminar on Information Modelling and Knowledge Bases 1994, Stockholm, Sweden

    Conference program n.a.

3rd European-Japanese Seminar on Information Modelling and Knowledge Bases 1993, Budapest, Hungary

    Conference program n.a.

2nd European-Japanese Seminar on Information Modelling and Knowledge Bases 1992, Ellivuori , Finland

    Conference program n.a.

1st European-Japanese Seminar on Information Modelling and Knowledge Bases 1991, Fujiyoshida, Japan

    Conference program n.a.

1988-1990:
Joint Scandinavian-Japanese Seminar on Information Modelling and Knowledge Bases, Ellivuori, Finland


1982-1986:
Scandinavian Research Seminar on Information Modelling and Database Management, Tampere University of Technology, Tampere, Finland

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