@article{MTMT:35439237, title = {A clustering approach for pairwise comparison matrices}, url = {https://m2.mtmt.hu/api/publication/35439237}, author = {Ágoston, Kolos Csaba and Bozóki, Sándor and Csató, László}, doi = {10.1080/01605682.2024.2406231}, journal-iso = {J OPER RES SOC}, journal = {JOURNAL OF THE OPERATIONAL RESEARCH SOCIETY}, volume = {76}, unique-id = {35439237}, issn = {0160-5682}, year = {2025}, eissn = {1476-9360}, pages = {971-983}, orcid-numbers = {Bozóki, Sándor/0000-0003-4170-4613; Csató, László/0000-0001-8705-5036} } @article{MTMT:35141139, title = {On head-to-head results as tie-breaker and consequent opportunities for collusion}, url = {https://m2.mtmt.hu/api/publication/35141139}, author = {Csató, László}, doi = {10.1093/imaman/dpae016}, journal-iso = {IMA J MANAG MAT}, journal = {IMA JOURNAL OF MANAGEMENT MATHEMATICS}, volume = {36}, unique-id = {35141139}, issn = {1471-678X}, abstract = {Accepted by: Phil ScarfThe outcome of some football matches has benefited both teams at the expense of a third team because head-to-head results were used for breaking ties. Inspired by these examples, our mathematical analysis identifies all possible collusion opportunities caused by this particular ranking rule in a single round-robin tournament with four teams. According to a simulation model based on the 2024 UEFA European Football Championship, merely the tie-breaking rule increases the probability of reaching a situation vulnerable to collusion by between 11.5 and 14.8 percentage points. This risk can scarcely be mitigated by a static match schedule. Therefore, tournament organizers are strongly encouraged to choose goal difference as the primary tie-breaking rule, similar to the official policy of FIFA.}, year = {2025}, eissn = {1471-6798}, pages = {215-230}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:36123217, title = {Win three-sets sports: Game patterns, gender comparisons, and comeback analysis—A commentary}, url = {https://m2.mtmt.hu/api/publication/36123217}, author = {Csató, László}, doi = {10.1177/17479541251333948}, journal-iso = {INT J SPORT SCI COACHING}, journal = {INTERNATIONAL JOURNAL OF SPORTS SCIENCE AND COACHING}, unique-id = {36123217}, issn = {1747-9541}, abstract = {Goldschmied et al. (2025) have conducted a longitudinal survey of three sports where the winner must win three sets to win a match. This note investigates their results in a simple statistical model.}, year = {2025}, eissn = {2048-397X}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:36091588, title = {Misaligned incentives in sports: A mathematical analysis of the post-2024 UEFA Champions League qualification}, url = {https://m2.mtmt.hu/api/publication/36091588}, author = {Csató, László and Ilyin, Sergey}, doi = {10.1093/imaman/dpaf016}, journal-iso = {IMA J MANAG MAT}, journal = {IMA JOURNAL OF MANAGEMENT MATHEMATICS}, unique-id = {36091588}, issn = {1471-678X}, abstract = {Union of European Football Associations (UEFA) declares that it is committed to respecting the fundamental values of sports. However, the qualification rules of the post-2024 UEFA Champions League are shown to be unfair: a game with misaligned incentives was narrowly avoided in the 2023/24 German Bundesliga. We develop a mathematical model to reveal how incentives for losing can be reduced or eliminated. Since UEFA repeatedly commits the same theoretical mistake in designing the qualification system of its competitions, governing bodies in sports are called to work more closely together with the scientific community.}, year = {2025}, eissn = {1471-6798}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:35676034, title = {The fairness of the group draw for the FIFA World Cup}, url = {https://m2.mtmt.hu/api/publication/35676034}, author = {Csató, László}, doi = {10.1177/17479541241300219}, journal-iso = {INT J SPORT SCI COACHING}, journal = {INTERNATIONAL JOURNAL OF SPORTS SCIENCE AND COACHING}, volume = {20}, unique-id = {35676034}, issn = {1747-9541}, abstract = {Several sports tournaments contain a round-robin group stage where the teams are assigned to groups subject to some constraints. Hence, the organisers usually use a computer-assisted random draw to avoid any dead end, a situation when the teams still to be drawn cannot be assigned to the remaining empty slots. This procedure is known to be unfair: the feasible allocations are not equally likely, that is, the draw does not have a uniform distribution. We quantify the implied unfairness of the 2025 FIFA World Cup draw and evaluate its effect on the probability of qualification for the knockout stage for each national team. The official draw order of Pot 1, Pot 2, Pot 3, Pot 4 turns out to be a significantly better option than the 23 other draw orders with respect to the unwanted distortions. Nonetheless, the non-uniform draw distorts the probability of qualification by more than one percentage point for two countries. Our results call attention to the non-negligible role of draw order and make it possible for policymakers to decide whether using fairer draw mechanisms is justified.}, year = {2025}, eissn = {2048-397X}, pages = {554-567}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:35622947, title = {The logarithmic least squares priorities and ordinal violations in the best-worst method}, url = {https://m2.mtmt.hu/api/publication/35622947}, author = {Csató, László}, doi = {10.1016/j.eswa.2024.125966}, journal-iso = {EXPERT SYST APPL}, journal = {EXPERT SYSTEMS WITH APPLICATIONS}, volume = {265}, unique-id = {35622947}, issn = {0957-4174}, year = {2025}, eissn = {1873-6793}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:35436841, title = {Mitigating the risk of tanking in multi-stage tournaments}, url = {https://m2.mtmt.hu/api/publication/35436841}, author = {Csató, László}, doi = {10.1007/s10479-024-06311-y}, journal-iso = {ANN OPER RES}, journal = {ANNALS OF OPERATIONS RESEARCH}, volume = {344}, unique-id = {35436841}, issn = {0254-5330}, abstract = {Multi-stage tournaments consisting of a round-robin group stage followed by a knockout phase are ubiquitous in sports. However, this format is incentive incompatible if at least 2 teams from a group advance to the knockout stage where the brackets are predetermined. A model is developed to quantify the risk of tanking in these contests. The suggested approach is applied to the 2022 FIFA World Cup to uncover how its design could have been improved by changing group labelling (a reform that has received no attention before) and the schedule of group matches. Scheduling is found to be a surprisingly weak intervention compared to previous results on the risk of collusion in a group. The probability of tanking, which is disturbingly high around 25%, cannot be reduced by more than 3 percentage points via these policies. Tournament organisers need to consider more fundamental changes against tanking.}, year = {2025}, eissn = {1572-9338}, pages = {135-151}, orcid-numbers = {Csató, László/0000-0001-8705-5036} } @article{MTMT:35003644, title = {The allocation of FIFA World Cup slots based on the ranking of confederations}, url = {https://m2.mtmt.hu/api/publication/35003644}, author = {Csató, László and Kiss, László Marcell and Szádoczki, Zsombor}, doi = {10.1007/s10479-024-06091-5}, journal-iso = {ANN OPER RES}, journal = {ANNALS OF OPERATIONS RESEARCH}, volume = {344}, unique-id = {35003644}, issn = {0254-5330}, abstract = {Qualifications for several world championships in sports are organised such that distinct sets of teams play in their own tournament for a predetermined number of slots. Inspired by a recent work studying the problem with the tools from the literature on fair allocation, this paper provides an alternative approach based on historical matches between these sets of teams. We focus on the FIFA World Cup due to the existence of an official rating system and its recent expansion to 48 teams, as well as to allow for a comparison with the already suggested allocations. Our proposal extends the methodology of the FIFA World Ranking to compare the strengths of five confederations. Various allocations are presented depending on the length of the sample, the set of teams considered, as well as the frequency of rating updates. The results show that more European and South American teams should play in the FIFA World Cup. The ranking of continents by the number of deserved slots is different from the ranking implied by FIFA policy. We recommend allocating at least some slots transparently, based on historical performances, similar to the access list of the UEFA Champions League.}, year = {2025}, eissn = {1572-9338}, pages = {153-173}, orcid-numbers = {Csató, László/0000-0001-8705-5036; Szádoczki, Zsombor/0000-0003-2586-5660} } @article{MTMT:35524152, title = {Tournament design: A review from an operational research perspective}, url = {https://m2.mtmt.hu/api/publication/35524152}, author = {Devriesere, Karel and Csató, László and Goossens, Dries}, doi = {10.1016/j.ejor.2024.10.044}, journal-iso = {EJOR}, journal = {EUROPEAN JOURNAL OF OPERATIONAL RESEARCH}, volume = {324}, unique-id = {35524152}, issn = {0377-2217}, abstract = {Every sport needs rules. Tournament design refers to the rules that determine how a tournament, a series of games between a number of competitors, is organized. This study aims to provide an overview of the tournament design literature from the perspective of operational research. Three important design criteria are discussed: efficacy and effectivity, fairness, and attractiveness. Our survey classifies the papers discussing these properties according to the main components of tournament design: format, seeding, draw, scheduling, and ranking. We also outline several open questions and promising directions for future research.}, year = {2025}, eissn = {1872-6860}, pages = {1-21}, orcid-numbers = {Devriesere, Karel/0000-0002-6774-849X; Csató, László/0000-0001-8705-5036; Goossens, Dries/0000-0003-0224-3412} } @article{MTMT:35726073, title = {How to measure consumer’s inconsistency in sensory testing?}, url = {https://m2.mtmt.hu/api/publication/35726073}, author = {Sipos, László and Ágoston, Kolos Csaba and Biró, Péter and Bozóki, Sándor and Csató, László}, doi = {10.1016/j.crfs.2025.100982}, journal-iso = {CURR RES FOOD SCI}, journal = {CURRENT RESEARCH IN FOOD SCIENCE}, volume = {10}, unique-id = {35726073}, year = {2025}, eissn = {2665-9271}, orcid-numbers = {Sipos, László/0000-0002-4584-6697; Bozóki, Sándor/0000-0003-4170-4613; Csató, László/0000-0001-8705-5036} }