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:
36th EJC International Conference 2026, June 8-12, 2026, Vaasa, Finland
(Host: TBD)
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Conference program TBD
Topics:
Knowledge and information modelling and discovery
12th Summer School
35th EJC International Conference 2025, June 9-13, 2025, VSB – Technical University of Ostrava, Ostrava, Czech Republic
(Host: Department of Computer Science, Faculty of Electrical Engineering and Computer Science, VSB – Technical University of Ostrava)
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Conference Sessions:
Information Modelling
Learning Models
Co-located Events:
11th Summer School & Panel Discussion Workshop, Jun 9
34th EJC International Conference 2024, June 10-14, 2024, Tokyo, Japan
(Host: Department of Data Science, Faculty of Data Science, Musashino University)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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.)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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Conference program n.a.
6th EJC 1996, Hornbaek, Denmark
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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
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Conference program n.a.
3rd European-Japanese Seminar on Information Modelling and Knowledge Bases 1993, Budapest, Hungary
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Conference program n.a.
2nd European-Japanese Seminar on Information Modelling and Knowledge Bases 1992, Ellivuori , Finland
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Conference program n.a.
1st European-Japanese Seminar on Information Modelling and Knowledge Bases 1991, Fujiyoshida, Japan
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Conference program n.a.