KOI 2026

Call for papers

International Conference on Operational Research (KOI) brings together scientists and academics as well as practitioners from various aspects of OR with the aim of establishing contacts network, presenting research ideas and sharing the most valuable experiences.

The conference is organized by Croatian Operational Research Society (CRORS) in cooperation with Faculty of Economics Business and Tourism, University of Split, as co-organizer.

The conference KOI 2026 will be held on September 23-25, 2026.

Conference is focused but not limited to the various disciplines and topics which are grouped in following main sections:

• Mathematical Programming
• Applied Statistics and Econometrics
• Multicriteria Decision Making
• Machine Learning and Data Mining
• Behavioral Operational Research
• Optimization in Human Environment

KOI 2026 conference offers twelve Special sessions:

• Advances in Convex Optimization – Goran and Yurii 70
• Advances in Systematic Reviews and Meta-Analyses in Management Science: Applications of AI tools
• Applied Statistics under SDG context
• Empowering Digital Transformation through OR
• Game Theory
• Graph theory and its applications
• Greening the financial sector: financial innovation, climate risks and sustainability reporting
• Modern challenges in the context of global change
• Operational Research for High-Performing Health Systems
• Operational Research in Fiscal Sustainability and Public Policy: Navigating Uncertainty and Transitions
• Operations Research Applied to Sustainable Natural Resource Management
• Project Presentation and Networking
• Quantitative Modelling of Resilience and Sustainability in Organizations and Socio-Economic Systems

In addition to sessions, the KOI 2026 conference will offer a workshop held by Professor Goran Lesaja from the Corvinus University, Budapest, titled:

• Introduction to Interior-Point Methods

The KOI 2026 conference also includes special methodological workshop for students enrolled in Postgraduate study programmes.

Within the section, students can present their results so far and get the opinion of an expert in the methodology they would use. In addition, they can present the problems they encountered and we will try to solve them together. On the other hand, if students are just at the stage of creating a theoretical model and can not decide upon which methodology is the most appropriate, this section is the ideal place to expand their methodological perspectives.

Experts from the following fields will participate in this special methodological section: operational research, statistics and econometrics, panel methodology, neural networks, SEM methodology and others.

Postgraduate students who apply for the special methodological Workshop have to submit a summary/abstract of their research.

• Special methodological workshop for postgraduate students

Registration fee

CRORS/SOR/CSA/HORS members 200 EUR
Non-members 300 EUR
Accompanying person (not the author/co-author) or student (author/co-author) 150 EUR

Call for papers

Full papers should be submitted online by Open Journal System here.

Submitted manuscripts are blindly review by two independent reviewers and checked for plagiarism to detect instances of overlapping and similar text. If the manuscript is accepted for publication, the corresponding author will be asked to submit proofreading confirmation along with signed copyright form.

The final version of the manuscript should be written in LaTeX format regardless of the initial form submission (LaTeX or Word).

There is no submission fee or publishing fee for accepted papers in this journal.