from Amazon
Monday, May 21, 2007
The fielding system approach I’ve been preaching
http://stat.wharton.upenn.edu/~stjensen/research/safe.html
Whereby UZR and other systems use discrete zones, this approach uses a continuous function. It doesn’t look like they use as many parameters as MGL’s UZR (park, GB/FB tendency, base/out, etc), but nonetheless, they’ve got the basic framework down. I’m not sure how they convert plays to runs either.
(Hat tip: David A.)