Friday fun: Animating passing patterns
In social network analysis world there are tools to visualize static networks, like friendship, communication, trade, etc. Examples of such tools are Pajek and Netdraw and more programmatic tools like GUESS. However if one wants to visualize the change of network over time, possibilities are much more limited. One can for example calculate various network metrics (like centrality, betweenness) on different time points and plot these values on a graph. Another possibility is to use SoNIA. Some time ago I experimented with that tool using ultimate passing data as a data set.
The game in question is women’s final in WUGC 2004, and the animation is for Finnish team as the players on Finnish team were easier for me to recognize from the DVD than Canadian players. I have similar data for men’s final for both teams (Condors and Furious George) so I might try in the future to create an animation of those teams too.
The numbers of the players in this animation are not jersey numbers, they are just sequential numbers starting from 1. Names or jersey numbers would be more descriptive. Black arcs are completed passes, green arcs goals, red arcs are turnovers. The length of the arcs corresponds to the length of the passes. The players were also divided in two groups using cluster analysis (the players in the right were more in the same lineups than with players from the left, and vice versa).
Judge yourself, is this kind of animation of any use or not. For one, it shows different pass patterns (like cyclic pattern such as give-n-go’s, and strings of players a to b to c to d), but still… hmmm…
July 29th, 2006 at 5:25 am
cool!
You might try using a longer time window in the sonia animation, then you will see more of the long-term structure/positions of the players.
best,
-skye
July 30th, 2006 at 12:05 am
Thanks for the feedback Skye,
Your comment is BTW the first real comment after getting maybe 100 or so spam comments on this blog.
I have to admit that I have had a long (too long) pause on this site and analyzing ultimate with these social networking tools. That’s because I have started in a new job, which has sort of taken all of my energy. Maybe if I start writing again, I will also get real comments. Hmmm???
Hartti
July 28th, 2007 at 11:18 pm
There is also a Pajek related temporal network visualization program SVGanim. See
http://vlado.fmf.uni-lj.si/pub/networks/pajek/SVGanim/
best, Vlado
July 29th, 2007 at 4:44 am
Thanks for the link Vlado!,