期刊
CHAOS
卷 23, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4826446
关键词
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资金
- Spanish MICINN
- FEDER Funds [MTM2009-13848, MTM2010-16153, MTM2010-18674]
- Junta de Andalucia Funds [FQM-264]
In this paper, we show a new technique to analyze families of rankings. In particular, we focus on sports rankings and, more precisely, on soccer leagues. We consider that two teams compete when they change their relative positions in consecutive rankings. This allows to define a graph by linking teams that compete. We show how to use some structural properties of this competitivity graph to measure to what extend the teams in a league compete. These structural properties are the mean degree, the mean strength, and the clustering coefficient. We give a generalization of the Kendall's correlation coefficient to more than two rankings. We also show how to make a dynamic analysis of a league and how to compare different leagues. We apply this technique to analyze the four major European soccer leagues: Bundesliga, Italian Lega, Spanish Liga, and Premier League. We compare our results with the classical analysis of sport ranking based on measures of competitive balance. (C) 2013 AIP Publishing LLC.
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