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HoopStudies
Joined: 30 Dec 2004 Posts: 533 Location: Near Philadelphia, PA
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Posted: Thu May 31, 2007 1:43 pm Post subject: |
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wiLQ wrote: | HoopStudies wrote: | My memory is telling me that Billups was the first half MVP by consensus, but the fact that Detroit dropped a bit in the 2nd half hurt his chances. In that light, you might look into impact of 2nd half vs 1st half performance. |
According to MVP Points in 2006, Nash was only FIFTH.
He was behind not only Billups but also LeBron, Duncan and Dirk.
So that's not only a problem with moving down Billups (which IMO is easy to solve:
he played alongside THREE all-stars. It could easily become a negative bonus for too balanced team).
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I think the second half slump (the Pistons did have the biggest 2nd half decline) would be a penalty for Billups. The Suns did improve, but I don't think that sort of thing would boost Nash. I think the already-mentioned factor of missing Stoudemire/lower expectations boosted Nash and D'Antoni in their individual awards. You could quantify those things if you really wanted to torture the guys who vote on these things. _________________ Dean Oliver
Author, Basketball on Paper
http://www.basketballonpaper.com |
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wiLQ
Joined: 23 May 2007 Posts: 22 Location: Poland
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Posted: Fri Jun 01, 2007 8:36 am Post subject: |
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HoopStudies wrote: | I think the second half slump (the Pistons did have the biggest 2nd half decline) would be a penalty for Billups. The Suns did improve, but I don't think that sort of thing would boost Nash. |
Exactly. It would hurt Billups but it wouldn't separate Nash from LeBron, Duncan and Dirk so I don't think that's a way to improve the formula.
HoopStudies wrote: |
I think the already-mentioned factor of missing Stoudemire/lower expectations boosted Nash and D'Antoni in their individual awards. You could quantify those things |
But how to do it?
Amare's absence was definitely a factor because AFAIR before the season a lot of writers were convinced that Suns would have problems with advancing to the playoffs. That's why 54 wins became a huge surprise and all the credit went to Nash... but how to measure those lower expectations? Not only in that particular year but also in every season during last two decades. _________________ regards
wiLQ |
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wiLQ
Joined: 23 May 2007 Posts: 22 Location: Poland
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Posted: Fri Jun 01, 2007 8:39 am Post subject: |
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Mark wrote: | wiLQ, I was aware that google references would be negative and positive but I still think it would weed out guys who have too low a profile. |
It could also weed out a lot of humble players just because they don’t have any off-court issues and they are simply playing great basketball. IMO idea with google references is just too unpredictable and simply random.
Mark wrote: | But if you dont want to use that metric you could use previous year MVP votes or fan all-star votes or some other favorability metric. |
Do you suggest that all-star votes have any influence on MVP voting?
Can you find any example for that one?
Mark wrote: | Media market size not decisive between Nash and Billups but media market size probably was a contributing factor is some previous year choices and could be in the future. |
In your opinion in which case exactly media market size was probably a contributing factor? _________________ regards
wiLQ |
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Harold Almonte
Joined: 04 Aug 2006 Posts: 224
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Posted: Fri Jun 01, 2007 9:05 am Post subject: |
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Quote: | But how to do it?
Amare's absence was definitely a factor because AFAIR before the season a lot of writers were convinced that Suns would have problems with advancing to the playoffs. That's why 54 wins became a huge surprise and all the credit went to Nash... but how to measure those lower expectations? Not only in that particular year but also in every season during last two decades. |
How many games did the writers think the Suns would win with Nash and without Stoud.? How much did they think Marion, Diaw and others would replace his stats by that "diminishing return"?
This is a special and unique situation (a traded -already MVP, but underrated-star and a full season hurted -MVP quality, but overrated-star), I don't know if it happened in past, but your measure should make an observation if it happens again in future. |
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Harold Almonte
Joined: 04 Aug 2006 Posts: 224
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Posted: Fri Jun 01, 2007 11:11 am Post subject: |
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The Suns's seasons games differential (Amare on/off full season) has been 7 and 8 games. How many wins produced says WP is he worth?. Of course he worths a lot more. But, All what you (statistically) see from players is all what you'll get from them? in all situations?
Performance ratings talks about a zero sum players-team acomplishments, more usage more rating they take from low usagers, but hide player's potential, being clutch and value of replacing other player's usage two of them. |
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Statman
Joined: 20 Feb 2005 Posts: 79
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Posted: Fri Jun 01, 2007 12:03 pm Post subject: |
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wiLQ wrote: | Harold Almonte wrote: | The only thing that comes to my mind is that it could have been the overrating of the Stoudemire variable. What was the big difference of Stoudamire being on, then off, and then on again? |
IMO Amare's absence was definitely helping Nash's case but how to measure something that didn't happened? |
Well - I'm sure Amare "earned" MVP points the year before the injury. How about this idea - if a player wins the MVP one season - and the next season a teammate who earned a certain minimum amount of MVP points is gone (or earns VERY few "shares" due to injury) without a specific replacement - those "lost" MVP points go to the returning MVP. Something like that. This way you'd only have to look at the MVP points of the rosters of the MVP candidate and the next season MVP points of that team. _________________ www.goodstats.net |
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jkubatko
Joined: 05 Jan 2005 Posts: 508 Location: Columbus, OH
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Posted: Fri Jun 01, 2007 12:20 pm Post subject: |
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I don't understand why you're worrying so much about creating a model that perfectly predicts past results. By "forcing" your model to perfectly predict the past, you are modelling the variability in the data rather than the trend. Sure, your model would predict the past with no error, but would it be useful for new data? _________________ Regards,
Justin Kubatko
Basketball Stats! |
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Mark
Joined: 20 Aug 2005 Posts: 807
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Posted: Fri Jun 01, 2007 1:29 pm Post subject: |
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wiLQ, this is your study and you asked for ideas. You of course can pursue them or discard them as you wish.
I didnt suggest all-star voting influences MVP voting directly but all-star voting was a proxy I thought of for favorable opinion that might indeed be a useful variable in a set of many.
I do think that prior year MVP voting is a significant indicator or factor for current year MVP voting You didnt need it to get a good match, and there are reasons you may not want it in, but from the outside it seemed worth mentioning. Media articles on MVP race often say things like it is "a guy's turn" and some of these guys are voters.
As for media market size I still think it can have an effect, but I took a quick look at last 20 years and did find that small market Karl Malone did get first MVP the year he most deserved it and small market Kevin Garnett got his the year with his highest to date PER as well. There are many years where 3-5 guys have plausible cases and media market size or overall media attention may play some role but I won't do a detailed study of that. If you want to look at that or not that is up to you. Perhaps the media effect may show up more in how high the also-ran candidates were vs. what stats would suggest. There may be more distortions on that than who is the #1, the MVP.
Last edited by Mark on Sat Jun 02, 2007 2:01 pm; edited 3 times in total |
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Harold Almonte
Joined: 04 Aug 2006 Posts: 224
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Posted: Fri Jun 01, 2007 2:29 pm Post subject: |
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I think Statman's was a very good point. It would need to question some of that year MVP voters to know what were they minded about Nash's previous MVP, Stoud. MVP points, Suns expectations, Billups, and the season second half.
An MVP in some way means a stepping up, you don't win it with your average stats, and to loose 7 more games only without Stoud. was "supposed" to be a big stepping up. |
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wiLQ
Joined: 23 May 2007 Posts: 22 Location: Poland
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Posted: Sat Jun 02, 2007 9:21 am Post subject: |
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jkubatko wrote: | I don't understand why you're worrying so much about creating a model that perfectly predicts past results. |
Because IMO Nash's MVP in 2006 is a sign that at least one ingredient is missing from the formula.
How should I explain that wrong prediction in your opinion?
jkubatko wrote: | By "forcing" your model to perfectly predict the past, you are modelling the variability in the data rather than the trend. Sure, your model would predict the past with no error, but would it be useful for new data? |
IMO yes. Are you certain that something similar to that situation will not happen again in the future?
I'm not. That's why I'm trying to identify that missing ingredient.
Of course, that ingredient won't have to be useful every year, like it was for example in 2007, formula worked perfectly without any tweaking, but I would like to know how to adjust it in case of deja-vu or something close to it in the future. _________________ regards
wiLQ |
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jkubatko
Joined: 05 Jan 2005 Posts: 508 Location: Columbus, OH
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Posted: Sat Jun 02, 2007 9:54 am Post subject: |
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wiLQ wrote: | How should I explain that wrong prediction in your opinion? |
Random error.
wiLQ wrote: | IMO yes. Are you certain that something similar to that situation will not happen again in the future?
I'm not. That's why I'm trying to identify that missing ingredient.
Of course, that ingredient won't have to be useful every year, like it was for example in 2007, formula worked perfectly without any tweaking, but I would like to know how to adjust it in case of deja-vu or something close to it in the future. |
But at some point in the future, whether it be next year or ten years from now, your system will fail again. Then you'll have to make more tweaks, and then when that one fails you'll have to make more tweaks. You just end up chasing your own tail. _________________ Regards,
Justin Kubatko
Basketball Stats! |
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wiLQ
Joined: 23 May 2007 Posts: 22 Location: Poland
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Posted: Sat Jun 02, 2007 10:14 am Post subject: |
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Statman wrote: | Well - I'm sure Amare "earned" MVP points the year before the injury. How about this idea - if a player wins the MVP one season - and the next season a teammate who earned a certain minimum amount of MVP points is gone (or earns VERY few "shares" due to injury) without a specific replacement - those "lost" MVP points go to the returning MVP. |
How can we define expression "without a specific replacement"?
For example, can we consider two new average players as a "specific replacement" for traded or injured All-star?
Or can we consider another player's great year as a "specific replacement" in production?
It sounds to me like a tough dilemma in almost every possible case because when a good player is out, there's always some kind of replacement in form of new player(s) or all other player's improved stats.
Don't get me wrong, I don't think that's a bad idea, but those questions above are making it very difficult to use.
Statman wrote: | This way you'd only have to look at the MVP points of the rosters of the MVP candidate and the next season MVP points of that team. |
IMO every rule should be applied to all players.
For instance, if Billups leaves Pistons during the off-season, Sheed and Rip should be eligible for some of those "lost" MVP Points. _________________ regards
wiLQ
Last edited by wiLQ on Sat Jun 02, 2007 10:21 am; edited 1 time in total |
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Mike G
Joined: 14 Jan 2005 Posts: 1509 Location: Delphi, Indiana
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Posted: Sat Jun 02, 2007 10:15 am Post subject: |
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You could almost certainly explain all mvp's with one formula, if you include height and skin color. But then you might get results saying Stockton 'should have' won a few. Or maybe not, since his teams never improved dramatically. Tops was 9 wins, from '96 to '97; Malone won that year.
Some people still swear Kidd should have won in '03 -- based almost entirely on the Nets' improvement. In a best-of-7 Finals, was he anywhere near the best/valuablest player? Was Iverson the b/v in the '01 Finals? What did they have that Shaq/Duncan didn't have? -- Shortness, and an inability to dominate.
I don't remember -- is incumbency a negative in your formula? Jordan was smaller than (mvp's) Barkley and Malone, but he sure wasn't less valuable in their Finals. _________________ 40% of all statistics are wrong. |
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wiLQ
Joined: 23 May 2007 Posts: 22 Location: Poland
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Posted: Sat Jun 02, 2007 11:12 am Post subject: |
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jkubatko wrote: | Random error. |
Random error? Where? In my formula? There's no room for error because I'm trying to explain and describe voters actions so I have to assume that all their choices are correct. Do you think that majority of them is voting randomly or without any clue what are they doing?
jkubatko wrote: | But at some point in the future, whether it be next year or ten years from now, your system will fail again. Then you'll have to make more tweaks, and then when that one fails you'll have to make more tweaks. |
What's wrong with that? Do you know any prediction tool that is always right?
BTW, if system fails and there isn't any tweak to improve formula, that will be an official end of that idea.
jkubatko wrote: | You just end up chasing your own tail. |
So you just don't like this idea, right? Well, that's your opinion but may I know why? _________________ regards
wiLQ |
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DLew
Joined: 13 Nov 2006 Posts: 57
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Posted: Sat Jun 02, 2007 11:23 am Post subject: |
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What Justin is trying to say is that the point of a model generally is to try to predict the future, not describe the past. If you force your model to completely describe the past, including data points that are outliers, then you will probably be less accurate forecasting the future. |
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