TY - JOUR AU - Gyimesi, András TI - Competitive balance in the post-2024 Champions League and the European Super League: A simulation study JF - JOURNAL OF SPORTS ECONOMICS J2 - J SPORTS ECON PY - 2024 PG - 28 SN - 1527-0025 DO - 10.1177/15270025241249362 UR - https://m2.mtmt.hu/api/publication/34821718 ID - 34821718 AB - The proposal of the European Super League and the 2024/25 reform of the UEFA Champions League are both major events in European club football. This study compares the competitive balance (CB) of these new tournament formats with the previous Champions League format. Short-, mid- and long-term CB are quantified by measuring the average uncertainty of match outcomes, the ratio of stakeless matches, and the recurrence ratio of teams in knockout rounds. A simulation method is applied using the teams, their seeding, and Elo ratings in the 2020/21 and 2021/22 Champions League seasons. Results suggest that the 2024/25 reform improves CB, especially in match uncertainty and the occurrence of stakeless matches. In comparison, the Star League of the European Super League concept of December 2023 is superior concerning average match uncertainty. However, it has a worse CB regarding stakeless matches and dynamic CB. Reasons and suggestions for improvement are also discussed. LA - English DB - MTMT ER - TY - JOUR AU - Pedone, Gianfranco AU - Váncza, József AU - Szaller, Ádám TI - Exploring hidden pathways to sustainable manufacturing for cyber-physical production systems JF - HELIYON J2 - HELIYON VL - 10 PY - 2024 IS - 8 PG - 19 SN - 2405-8440 DO - 10.1016/j.heliyon.2024.e29004 UR - https://m2.mtmt.hu/api/publication/34786003 ID - 34786003 LA - English DB - MTMT ER - TY - THES AU - Szádoczki, Zsombor TI - Preference modelling with a graph theoretic approach PB - Budapesti Corvinus Egyetem PY - 2024 SP - 165 UR - https://m2.mtmt.hu/api/publication/34741383 ID - 34741383 LA - English DB - MTMT ER - TY - JOUR AU - Tamás, Ambrus AU - Csáji, Balázs Csanád TI - Statisztikus tanuláselmélet I. rész. Szupport vektor gépek TS - Szupport vektor gépek JF - ÉRINTŐ : ELEKTRONIKUS MATEMATIKAI LAPOK J2 - ÉRINTŐ PY - 2024 IS - 31 PG - 12 SN - 2559-9275 UR - https://m2.mtmt.hu/api/publication/34735759 ID - 34735759 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Biró, Péter AU - Bozóki, Sándor AU - Király, Tamás AU - Kristály, Alexandru TI - Optimization methods and algorithms JF - CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH J2 - CEJOR VL - 32 PY - 2024 SP - 1 EP - 9 PG - 9 SN - 1435-246X DO - 10.1007/s10100-023-00898-6 UR - https://m2.mtmt.hu/api/publication/34512778 ID - 34512778 N1 - Centre for Economic and Regional Studies (HUN-REN KRTK), HUN-REN Institute of Economics, Budapest, Hungary Department of Operations Research and Actuarial Sciences, Institute of Operations and Decision Sciences, Corvinus University of Budapest, Budapest, Hungary Laboratory on Engineering and Management Intelligence, HUN-REN Institute for Computer Science and Control (HUN-REN SZTAKI), Research Group of Operations Research and Decision Systems, Budapest, Hungary Department of Operations Research, Eötvös Loránd University, Budapest, Hungary Department of Economics, Babes-Bolyai University, Cluj-Napoca, Romania Institute of Applied Mathematics, Óbuda University, Budapest, Hungary Export Date: 25 March 2024 Correspondence Address: Bozóki, S.; Department of Operations Research and Actuarial Sciences, Hungary; email: bozoki.sandor@sztaki.hun-ren.hu Funding text 1: The contribution of Tamás Kis, Péter Györgyi and Markó Horváth to Sect. 1 is highly appreciated. AB - Recent results of three areas, pickup and delivery, optimal mass transportation, matching under preferences are highlighted. The topics themselves have been selected from the active research fields of Hungarian Operations Research. We also provide a short summary of selected research results from the 34th Hungarian Operations Research Conference, held in Cegléd, Hungary, August 31–September 2, 2021. LA - English DB - MTMT ER - TY - JOUR AU - Gal, B AU - Zeh, C AU - Szaller, Ádám TI - How grey wolf optimization affects remanufacturing JF - PROCEDIA CIRP J2 - PROCEDIA CIRP PY - 2024 PG - 6 SN - 2212-8271 UR - https://m2.mtmt.hu/api/publication/34492350 ID - 34492350 LA - English DB - MTMT ER - TY - JOUR AU - Csató, László AU - Petróczy, Dóra Gréta TI - Bibliometric indices as a measure of performance and competitive balance in the knockout stage of the UEFA Champions League JF - CENTRAL EUROPEAN JOURNAL OF OPERATIONS RESEARCH J2 - CEJOR PY - 2024 SN - 1435-246X DO - 10.1007/s10100-023-00896-8 UR - https://m2.mtmt.hu/api/publication/34484769 ID - 34484769 N1 - Laboratory on Engineering and Management Intelligence, Research Group of Operations Research and Decision Systems, HUN-REN Institute for Computer Science and Control (HUN-REN SZTAKI), Kende street 13–17, Budapest, 1111, Hungary Institute of Operations and Decision Sciences, Department of Operations Research and Actuarial Sciences, Corvinus University of Budapest, Fővám square 8, Budapest, 1093, Hungary Institute of Economic, Centre for Economic and Regional Studies (KRTK), Eötvös Loránd Research Network (ELKH), Tóth Kálman street 4, Budapest, 1097, Hungary MNB Institute, John von Neumann University, Infopark promenade 1. I. building, Budapest, 1117, Hungary Export Date: 5 February 2024 Correspondence Address: Csató, L.; Institute of Operations and Decision Sciences, Fővám square 8, Hungary; email: laszlo.csato@sztaki.hu AB - We argue for the application of bibliometric indices to quantify the long-term uncertainty of outcome in sports. The Euclidean index is proposed to reward quality over quantity, while the rectangle index can be an appropriate measure of core performance. Their differences are highlighted through an axiomatic analysis and several examples. Our approach also requires a weighting scheme to compare different achievements. The methodology is illustrated by studying the knockout stage of the UEFA Champions League in the 20 seasons played between 2003 and 2023: club and country performances as well as three types of competitive balance are considered. Measuring competition at the level of national associations is a novelty. All results are remarkably robust concerning the bibliometric index and the assigned weights. Since the performances of national associations are more stable than the results of individual clubs, it would be better to build the seeding in the UEFA Champions League group stage upon association coefficients adjusted for league finishing positions rather than club coefficients. LA - English DB - MTMT ER - TY - JOUR AU - Csató, László TI - Club coefficients in the UEFA Champions League: Time for shift to an Elo-based formula JF - INTERNATIONAL JOURNAL OF PERFORMANCE ANALYSIS IN SPORT J2 - INT J PERF ANAL SPOR VL - 24 PY - 2024 IS - 2 SP - 119 EP - 134 PG - 16 SN - 2474-8668 DO - 10.1080/24748668.2023.2274221 UR - https://m2.mtmt.hu/api/publication/34267248 ID - 34267248 LA - English DB - MTMT ER - TY - JOUR AU - Ágoston, Kolos Csaba AU - Csató, László TI - A lexicographically optimal completion for pairwise comparison matrices with missing entries JF - EUROPEAN JOURNAL OF OPERATIONAL RESEARCH J2 - EJOR VL - 314 PY - 2024 IS - 3 SP - 1078 EP - 1086 PG - 9 SN - 0377-2217 DO - 10.1016/j.ejor.2023.10.035 UR - https://m2.mtmt.hu/api/publication/34231363 ID - 34231363 LA - English DB - MTMT ER - TY - JOUR AU - Csató, László TI - How to choose a completion method for pairwise comparison matrices with missing entries: An axiomatic result JF - INTERNATIONAL JOURNAL OF APPROXIMATE REASONING J2 - INT J APPROX REASON VL - 164 PY - 2024 PG - 9 SN - 0888-613X DO - 10.1016/j.ijar.2023.109063 UR - https://m2.mtmt.hu/api/publication/34214624 ID - 34214624 LA - English DB - MTMT ER -