Search found 7 matches

by l_davies93
Fri Aug 08, 2014 6:15 pm
Forum: APBRmetrics
Topic: Joe Sill's "Improved NBA Adjusted +/- "
Replies: 8
Views: 10654

Re: Joe Sill's "Improved NBA Adjusted +/- "

But when it comes to calculating individual players' contributions, i.e. their EPV-Added (EPVA) statistic, if I'm understanding Appendix B they're still doing what they did at the Sloan conference: attributing all of the change in EPV to the player with the ball. The contributions, good and bad, of...
by l_davies93
Wed Aug 06, 2014 8:09 pm
Forum: APBRmetrics
Topic: Joe Sill's "Improved NBA Adjusted +/- "
Replies: 8
Views: 10654

Re: Joe Sill's "Improved NBA Adjusted +/- "

Crow wrote:I had the paper too but it is a moot point until I try to get the computer fixed (probably not soon).

Here is the thread I mentioned:

viewtopic.php?f=2&t=8473
Oh cool, I never saw this. Thanks for the link!
by l_davies93
Wed Aug 06, 2014 8:07 pm
Forum: APBRmetrics
Topic: Power Ranking using Neural Network
Replies: 14
Views: 14892

Re: Power Ranking using Neural Network

Ridge regresdion is merely a special case of bayesian linear regression in which all priors are zero. I am familiar with the thread you quoted, in which mystic was speaking semantically. In terms of the mathematical operations a ridge regression is equivalent to a weighted linear regression with su...
by l_davies93
Wed Aug 06, 2014 7:09 pm
Forum: APBRmetrics
Topic: Power Ranking using Neural Network
Replies: 14
Views: 14892

Re: Power Ranking using Neural Network

Are you sure that's done in ridge regressions? Ignoring the bayesian interpretation, or rather giving a 'classical' interpretation, yes. I never saw this in my studies, but maybe I didn't pay enough attention in class haha. From this forum: "Mathematically speaking that is incorrect. The ridge...
by l_davies93
Wed Aug 06, 2014 5:43 pm
Forum: APBRmetrics
Topic: Power Ranking using Neural Network
Replies: 14
Views: 14892

Re: Power Ranking using Neural Network

v-zero wrote:the easiest of which is to put in dummy measurements for each variable, as is done in ridge regression.
Are you sure that's done in ridge regressions?
by l_davies93
Wed Aug 06, 2014 5:20 pm
Forum: APBRmetrics
Topic: Joe Sill's "Improved NBA Adjusted +/- "
Replies: 8
Views: 10654

Re: Joe Sill's "Improved NBA Adjusted +/- "

Hey. A summary would be cool. Wasn't this presented at Sloan Conference? I believe there was some earlier discussion about it here; but I haven't looked it up. Oh I didn't realise. The paper itself was released less than a week ago, but they may have had some presentation/report on their initial fi...
by l_davies93
Wed Aug 06, 2014 4:52 pm
Forum: APBRmetrics
Topic: Joe Sill's "Improved NBA Adjusted +/- "
Replies: 8
Views: 10654

Joe Sill's "Improved NBA Adjusted +/- "

Hey guys, I was wondering if anybody had Sill's "Improved NBA Adjusted +/- Using Regularization and Out-of-Sample Testing" as it's unavailable online. Any help is much appreciated. Also, there's a cool new paper out here (http://arxiv.org/pdf/1408.0777v1.pdf) which gives some great insight...