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Quantum Spherical Fuzzy Bayesian Network Integrated with Artificial Intelligence Based Decision Analytics for Evaluating Renewable Energy Investment Competencies
Serhat Yüksel ORCID icon link to view author Serhat Yüksel details   Hasan Dinçer ORCID icon link to view author Hasan Dinçer details   Muhammet Deveci ORCID icon link to view author Muhammet Deveci details   Dragan Pamucar ORCID icon link to view author Dragan Pamucar details   Merve Acar ORCID icon link to view author Merve Acar details   Serkan Eti ORCID icon link to view author Serkan Eti details   Jurgita Antucheviciene ORCID icon link to view author Jurgita Antucheviciene details  

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https://doi.org/10.15388/26-INFOR629
Pub. online: 11 May 2026      Type: Research Article      Open accessOpen Access

Received
1 March 2026
Accepted
1 April 2026
Published
11 May 2026

Abstract

This study proposes an integrated AI-driven quantum spherical fuzzy decision framework for multi-criteria evaluation under uncertainty. The model combines AI-based decision-maker weighting, quantum spherical fuzzy Bayesian networks for criteria weighting, and WASPAS for ranking. Decision makers are clustered using k-means to reduce bias, while interdependencies and uncertainty are captured probabilistically. The framework is applied to assess renewable energy investment competencies in G7 economies. Results highlight the importance of customer-centric expectations and real-time financial performance. The model offers a flexible, robust, and scalable approach, improving reliability, transparency, and decision quality in complex environments.

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Biographies

Yüksel Serhat
https://orcid.org/0000-0002-9858-1266
serhatyuksel@medipol.edu.tr

S. Yüksel is a professor of finance in İstanbul Medipol University. Before this position, he worked as a senior internal auditor for seven years in Finansbank, Istanbul, Turkey, and in Konya Food and Agriculture University as an assistant professor for a year. Dr. Yüksel has a BS in business administration (in English) from Yeditepe University (2006) with full scholarship. He got his master degree in economics from Boğaziçi University (2008). He also has a PhD in banking from Marmara University (2015). His research interests lie in energy economics, banking, finance and financial crisis. He has more than 500 scientific articles and some of them are indexed in SSCI, SCI, Scopus and Econlit. Also, he is the editor of some books that will be published by Springer and IGI Global.

Dinçer Hasan
https://orcid.org/0000-0002-8072-031X
hdincer@medipol.edu.tr

H. Dinçer is a professor of finance at Istanbul Medipol University, Faculty of Economics and Administrative Sciences, Istanbul, Turkey. Dr. Dincer has BAs in financial markets and investment management from Marmara University. He received his PhD in finance and banking with his thesis entitled “The Effect of Changes on the Competitive Strategies of New Service Development in the Banking Sector”. He has work experience in the finance industry as a portfolio specialist and his major academic studies focus on financial instruments, performance evaluation, and economics. He is the executive editor of the International Journal of Finance and Banking Studies (IJFBS) and the founder member of the Society for the Study of Business and Finance (SSBF). He has about 500 scientific articles and some of them are indexed in SSCI, SCI-Expended and Scopus. In addition to them, he is also an editor of many different books published by Springer and IGI Global.

Deveci Muhammet
https://orcid.org/0000-0002-3712-976X
muhammetdeveci@gmail.com

M. Deveci is a full professor at the Department of Industrial Engineering in the Turkish Naval Academy, National Defence University, Istanbul, Turkey, and he is also an honorary senior research fellow with the Bartlett School of Sustainable Construction, University College London, UK. He worked as a visiting researcher and postdoctoral researcher, in 2014–2015 and 2018–2019, respectively, at the School of Computer Science, University of Nottingham, Nottingham, U.K. Dr. Deveci is an outstanding researcher and a prolific author who has been publishing high quality peer-reviewed papers in highly ISI ranked journals and reputable international conferences. Dr. Deveci has published over 400 papers in journals indexed by SCI/SCI-E papers at reputable venues, as well as more than 30 contributions in international conferences related to his areas. Dr. Deveci received the 100th-anniversary award for his worldwide scientific achievements from the Scientific and Technological Research Council of Turkey (TUBITAK). Dr. Deveci is an internationally recognized outstanding scientist in intelligent decision support systems underpinned by computational intelligence, particularly uncertainty handling, fuzzy systems, combinatorial optimization, and multicriteria decision making. His research and development activities are multidisciplinary and lie at the interface of operational research, computer science and artificial intelligence science. Based on the 2020–2025 publications from Scopus and Stanford University, he is within the world’s top 2% scientists in the field of artificial intelligence.

Pamucar Dragan
https://orcid.org/0000-0001-8522-1942
dragan.pamucar@gmail.com

D. Pamucar is a full professor at University of Belgrade, Department of Operational Research and Statistics, Serbia. Dr. Pamucar received a PhD in applied mathematics with specialization of multi-criteria modelling and soft computing techniques, from University of Defence in Belgrade, Serbia, in 2013, and an MSc degree from the Faculty of Transport and Traffic Engineering in Belgrade, 2009. His research interests are computational intelligence, multi-criteria decision-making problems, neuro-fuzzy systems, fuzzy, rough and intuitionistic fuzzy set theory, neutrosophic theory. Application areas include a wide range of logistics problems. Dr Pamucar has authored five books and over 800 research papers published in SCI indexed international journals. He has served as a guest editor of more than 30 SCIE indexed journals, such as Applied Soft Computing, Sustainable Energy Technologies and Assessments, Mathematical Problems in Engineering, Computer Systems Science and Engineering, Intelligent Automation & Soft Computing, IEEE Transactions on Fuzzy Systems and so on. In the last three years, D. Pamucar was recognized as a top and outstanding reviewer for numerous journals. According to Scopus and Stanford University, he is among the world’s top 2% of scientists as of 2020.

Acar Merve
https://orcid.org/0000-0001-5853-4943
merve.acar@medipol.edu.tr

M. Acar works as a research assistant at Istanbul Medipol University, Turkey. M. Acar holds a bachelor’s degree in economics from Sakarya University. She received her master’s degree in economic development and international economics from Kocaeli University. She is also pursuing her doctorate in economics at Kocaeli University. Her research areas are economics, economic growth, and energy economics. She conducts her studies in these areas.

Eti Serkan
https://orcid.org/0000-0002-4791-4091
seti@marmara.edu.tr

S. Eti is a professor of qualitative methods at İstanbul Medipol University, Turkey. Before this position, he worked as a manager for two years in İşbank, Istanbul, Turkey. Dr. Eti has a BS in mathematics from Yıldız University. He got his master degree in qualitative methods from Marmara University. He also has a PhD in qualitative methods from Marmara University. His research interests lie in energy economics, banking, finance and financial crisis. He has authored more than 200 scientific articles and some of them are indexed in SSCI, SCI, Scopus and Econlit.

Antucheviciene Jurgita
https://orcid.org/0000-0002-1734-3216
jurgita.antucheviciene@vilniustech.lt

J. Antucheviciene is a professor in the Department of Construction Management and Real Estate at Vilnius Gediminas Technical University, Lithuania. She received her PhD in civil engineering from Vilnius Gediminas Technical University in 2005. She is a member of IEEE SMC Technical Committee on Grey Systems, and of two EURO Working Groups: Multicriteria Decision Aiding (EWG-MCDA) and Operations Research in Sustainable Development and Civil Engineering (EWG-ORSDCE). She is an associate editor of Applied Soft Computing, and Decision Analytics Journal, deputy editor-in-chief of Journal of Civil Engineering and Management, editorial board member of Engineering Applications of Artificial Intelligence, Sustainability, Buildings and others. Her main research interests include multi-criteria decision making (MCDM), civil engineering and management, and sustainable development. She has over 200 scientific papers indexed in SSCI, SCI, Scopus. According to Stanford/Elsevier’s rankings, she is among the world’s top 2% scientists in Engineering.


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Keywords
artificial intelligence fuzzy decision-making decision support systems quantum spherical fuzzy Bayesian networks WASPAS renewable energy projects

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