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The authors considered two scenarios of previous football matches. Namely, they focused on a quarter-final game in the 2008 FIFA Club World Cup and a regular game in the 2011 Japanese soccer league. Using a digital video camera, they then recorded the time fluctuation in the positions of all players and the ball.
Thanks to their analysis of the time-series variation in the ball versus the front-line movements of the players, they were the first to discover that these dynamics have a fractal nature. This finding implies that the movement of the ball/front-line at any given time has a strong influence on subsequent actions. This is due to the so-called memory effect, linked to the game's fractal nature.
The authors therefore found that for professional football games, the ball possession time for one team lasts only thirty seconds, at most. As a result, the superiority of one team tends to persist for thirty seconds or less before the other team gets an opportunity to regain the advantage. The authors show that their conclusion is in broad agreement with previous studies on the 2002 FIFA World Cup.
brazenalderpadrescorpio
reply to post by bigfatfurrytexan
They don't make the study itself publicly viewable, but from what I gather, the game is dominated by a span of 30 minutes. Within those 30 minutes, things digress to a state that is similar but more chaotic than what happened at the start of the 30 minutes, and then build back up again. It's kind of hard to say since Science Daily gives us so much limited information to go on. I tried to find this story on a much better site, but it's only on sites like Science Codex and Science Daily. I just thought that the fractal aspect was interesting, and it's also interesting to see that fractals seem to appear everywhere.
brazenalderpadrescorpio
reply to post by bigfatfurrytexan
Your ideas are similar to mine. When I first heard of fractals, I started to kind of thought-spiral. I started riffing off the idea that even religious (man-made of course) ideas were based off of fractals. For example, it starts with God, then goes on to Jesus (I'm sort of a Jehovah's Witness so I don't exactly believe that Jesus is God Himself), and then angels, and then humans, and then animals. That's as far as religious dogma is concerned. I think that pretty much anything could be considered to be a fractal.