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GYXU > Baseball > Yo Boyd! 9 May 2005 19:22:58

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Yo Boyd!

GTanner 25 February 2005 07:40:21
 
You lurking, or should I email you directly for a discussion on the
effect of the new improved basketball RPI's?

tanner@tee-ex-state­-dot-edu



GT

(VERMONT?!!??!)

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Boyd Nation 25 February 2005 07:50:04 permanent link ]
 On Thu, 24 Feb 2005 21:40:21 -0600, GTanner <tanner@nospam.nosp­am> wrote:
You lurking, or should I email you directly for a discussion on the >effect of the new improved basketball RPI's?

I'm here (and have posted more than you have this year, so I'm not sure
what you mean by lurking).

It's broke, although not as bad as the baseball formula. The interesting
thing is that the old formula, which was close to the baseball one, actually
worked pretty well for basketball. The new one's broken because it's an
attempt at social engineering rather than ranking.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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GTanner 25 February 2005 20:08:27 permanent link ]
 

Boyd Nation wrote:
It's broke, although not as bad as the baseball formula. The interesting> thing is that the old formula, which was close to the baseball one, actually> worked pretty well for basketball. The new one's broken because it's an> attempt at social engineering rather than ranking.

Is accounting for the road-home location of the game the only change
they made to the formula?

Is that change significant enough to explain why there are so many more
highly ranked mid-majors than in previous years?

Is the baseball RPI going to have the same adjustment?

Add comment
GTanner 25 February 2005 20:34:32 permanent link ]
 

Boyd Nation wrote:> On Fri, 25 Feb 2005 10:08:27 -0600, GTanner <tanner@nospam.nosp­am> wrote:>
Boyd Nation wrote:>>
It's broke, although not as bad as the baseball formula. The interesting>>>thing­ is that the old formula, which was close to the baseball one, actually>>>worked pretty well for basketball. The new one's broken because it's an>>>attempt at social engineering rather than ranking.>
Is accounting for the road-home location of the game the only change >>they made to the formula?>
That's correct, although that's a serious change. Basically road wins> count as 1.4 "wins" (and home losses count correspondingly) while home> wins are only worth 0.6 "wins".

Do you have any idea how they arrived at this adjustment amount? Did
they just pull numbers out of the air? or did they do backtesting
(snicker... doubtful)?

I do remember when they first announced it, and one of the committee
members said something like "we're making road wins worth 40% more than
home wins." So if he couldn't understand that 1.4 was more than 40%
bigger than 0.6, I'd be highly surprised if they arrived at those
numbers through any kind of statistical test.
Is the baseball RPI going to have the same adjustment?>
Not as far as anyone knows.

I take it that you're hoping the answer is "no"? Do you have a problem
with the concept of the adjustment or with the size of it?

I think the concept's great -- it's a carrot to get the big schools to
play more road games. But seeing Vermont ranked #13 in basketball tells
me they overdid it.



GT

Add comment
Boyd Nation 25 February 2005 20:53:17 permanent link ]
 On Fri, 25 Feb 2005 10:34:32 -0600, GTanner <tanner@nospam.nosp­am> wrote:
Boyd Nation wrote:>> On Fri, 25 Feb 2005 10:08:27 -0600, GTanner <tanner@nospam.nosp­am> wrote:
Boyd Nation wrote:
It's broke, although not as bad as the baseball formula. The interesting>>>>thin­g is that the old formula, which was close to the baseball one, actually>>>>worked pretty well for basketball. The new one's broken because it's an>>>>attempt at social engineering rather than ranking.
Is accounting for the road-home location of the game the only change >>>they made to the formula?
That's correct, although that's a serious change. Basically road wins>> count as 1.4 "wins" (and home losses count correspondingly) while home>> wins are only worth 0.6 "wins".
Do you have any idea how they arrived at this adjustment amount? Did >they just pull numbers out of the air? or did they do backtesting >(snicker... doubtful)?

It doesn't match up in any way with the actual home court advantage, so
I suspect it's just made up.
Is the baseball RPI going to have the same adjustment?
Not as far as anyone knows.
I take it that you're hoping the answer is "no"? Do you have a problem >with the concept of the adjustment or with the size of it?
I think the concept's great -- it's a carrot to get the big schools to >play more road games. But seeing Vermont ranked #13 in basketball tells >me they overdid it.

They can rank, or they can do social engineering. They can't do both at
the same time. Now, it's not like they can break the baseball RPI much
worse than it already is, but that's not a reason to do something like
this. If they want to come up with a way to force teams to play more
road games, just legislate it and be done with it.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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GTanner 25 February 2005 21:00:18 permanent link ]
 

Boyd Nation wrote:> They can rank, or they can do social engineering.

???

What's the purpose of rankings?

What do you think rankings should explain?




GT

Add comment
Boyd Nation 25 February 2005 21:08:27 permanent link ]
 On Fri, 25 Feb 2005 11:00:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:>
Boyd Nation wrote:>> They can rank, or they can do social engineering.
???>
What's the purpose of rankings?>
What do you think rankings should explain?

Who's had the best season?

Now, there are various definitions you can put on that question, such as,
"Who's the best team at this time?" or, "Who's the most likely to win this
postseason shindig we're putting on?" or, "Who's been the most
consistently good over the course of this season?", but that's the core
question. "Who did what we wanted them to behaviorally?" isn't really
all that satisfying a definition.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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GTanner 25 February 2005 21:13:18 permanent link ]
 

Boyd Nation wrote:> On Fri, 25 Feb 2005 11:00:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:>
Boyd Nation wrote:>>
They can rank, or they can do social engineering. >
???>>
What's the purpose of rankings?>>
What do you think rankings should explain?>
Who's had the best season?

And you don't think the location of the game(s) influences that answer
at all?



GT

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Chris Bellomy 25 February 2005 21:24:27 permanent link ]
 GTanner <tanner@nospam.nosp­am> wrote:
:
:
: Boyd Nation wrote:
: > They can rank, or they can do social engineering.
:
: ???
:
: What's the purpose of rankings?
:
: What do you think rankings should explain?

I think Boyd is saying that using rankings to club big-name
programs into more road games is stoopidl.

cb
Add comment
Boyd Nation 25 February 2005 21:28:28 permanent link ]
 On Fri, 25 Feb 2005 11:13:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:
Boyd Nation wrote:>> On Fri, 25 Feb 2005 11:00:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:
Boyd Nation wrote:
They can rank, or they can do social engineering.
???>>>
What's the purpose of rankings?>>>
What do you think rankings should explain?
Who's had the best season?
And you don't think the location of the game(s) influences that answer >at all?

Oh, of course; there's a HFA factor in the ISR's, after all. They're
not trying to accurately measure anything, though; they're trying to
influence behavior. It's not like it's all that hard to find out what
the home court advantage is and try to accurately model it -- that they
didn't do so shows that they're not interested in accuracy but in control.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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GTanner 25 February 2005 21:49:01 permanent link ]
 

Chris Bellomy wrote:> GTanner <tanner@nospam.nosp­am> wrote:> : > : > : Boyd Nation wrote:> : > They can rank, or they can do social engineering. > : > : ???> : > : What's the purpose of rankings?> : > : What do you think rankings should explain?>
I think Boyd is saying that using rankings to club big-name> programs into more road games is stoopidl.

Figures. He always has been openly biased towards LSU.



GT

Add comment
Chris Bellomy 25 February 2005 22:12:10 permanent link ]
 GTanner <tanner@nospam.nosp­am> wrote:
:
:
: Chris Bellomy wrote:
: > GTanner <tanner@nospam.nosp­am> wrote:
: > :
: > :
: > : Boyd Nation wrote:
: > : > They can rank, or they can do social engineering.
: > :
: > : ???
: > :
: > : What's the purpose of rankings?
: > :
: > : What do you think rankings should explain?
: >
: > I think Boyd is saying that using rankings to club big-name
: > programs into more road games is stoopidl.
:
: Figures. He always has been openly biased towards LSU.

True. Now everybody is going to be traveling to recruit that
big-name Cuban talent.


Add comment
Todd Warner 26 February 2005 08:57:43 permanent link ]
 Tom Penders doesn't seem to happy about the RPI changes:

http://www.chron.co­m/cs/CDA/ssistory.mp­l/sports/bk/bkc/men/­3051375


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GTanner 26 February 2005 18:10:06 permanent link ]
 

Todd Warner wrote:> Tom Penders doesn't seem to happy about the RPI changes:>

Tom Penders has never been happy about anything, except for the time the
local tanning salon had Half Price Month.



GT

Add comment
GTanner 28 February 2005 18:54:31 permanent link ]
 

Boyd Nation wrote:> On Fri, 25 Feb 2005 11:13:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:>>And you don't think the location of the game(s) influences that answer >>at all?>
Oh, of course; there's a HFA factor in the ISR's, after all.

How did you determine it? How big is your HFA factor? ie, what
adjustment should they have used in the RPI instead of 0.6 and 1.4?

Add comment
Boyd Nation 28 February 2005 19:06:48 permanent link ]
 On Mon, 28 Feb 2005 08:54:31 -0600, GTanner <tanner@nospam.nosp­am> wrote:
Boyd Nation wrote:>> On Fri, 25 Feb 2005 11:13:18 -0600, GTanner <tanner@nospam.nosp­am> wrote:>>>And you don't think the location of the game(s) influences that answer >>>at all?
Oh, of course; there's a HFA factor in the ISR's, after all.
How did you determine it? How big is your HFA factor? ie, what >adjustment should they have used in the RPI instead of 0.6 and 1.4?

The home team wins 54-55% of the time, all other things being equal. That's
true both at the college level over the last eight years and at the major
league level over at least the last century. 10% is the correct adjustment.

I don't have the numbers off the top of my head for basketball; my
recollection is that HCA is around 62%, but don't quote me on that.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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Boyd Nation 6 May 2005 22:18:47 permanent link ]
 On Fri, 06 May 2005 13:08:16 -0500, Tanner <tanner@knuckler.co­m> wrote:
Go to the baseball forum on Texags.com and you'll seriously find more >discussion of Aggie softball than Aggie baseball -- the only baseball >topic any of the Aggies want to discuss is that Mark Johnson needs to be >fired and who the replacement should be, and the moderaters refuse to >allow posts on that topic. That is one defeated fan base.>
Let's see if your projection stirs them up:>

http://groups-beta.­google.com/group/rec­.sport.baseball.coll­ege/browse_thread/th­read/7812ec27b7562b2­9/ca4e15bc6267b650

or

http://tinyurl.com/­cp94u

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
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Rick Rollins 7 May 2005 07:12:17 permanent link ]
 "Boyd Nation" <boyd@asylum.emss.c­om> wrote in message
news:slrnd7n9lp.cuf­.boyd@asylum.emss.co­m...> On Fri, 06 May 2005 16:55:46 GMT, Rick Rollins <rrollins@pronetisp­.net>
wrote:> > and thinks UGa should be one of the last ones eliminated.>
I think that if the SEC got all 12 teams in, Boyd still wouldn't be> >happy -- he'd> > suggest the SEC should immediately expand and get that team in as
well.>
OK, take the conference affiliation out of the equation. Pretend that> Auburn is an independent who just happened to play the same schedule that> they have played. Make a case against them.>

Boyd, it was just a joke. But if I were going to pick on an SEC team,
it's
Vandy, not Auburn, that I think should be left out besides UGa and UK.


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Boyd Nation 9 May 2005 17:56:36 permanent link ]
 On Fri, 06 May 2005 17:17:45 -0000, Boyd Nation <boyd@asylum.emss.c­om> wrote:
If you assume that Kansas gets swept this weekend

Obviously, I underestimated the evilocity of the Longhorns, being willing
to essentially give away a shot at the conference title just to keep the
Aggies out of the tournament. Now that's dedication to a cause.

--
Boyd Nation boyd.nation@mindspr­ing.com
College Baseball Columns, Links, and Ratings: http://www.boydswor­ld.com
Add comment
Chris Bellomy 9 May 2005 19:22:58 permanent link ]
 Boyd Nation <boyd@asylum.emss.c­om> wrote:
: On Fri, 06 May 2005 17:17:45 -0000, Boyd Nation <boyd@asylum.emss.c­om> wrote:
:
: > If you assume that Kansas gets swept this weekend
:
: Obviously, I underestimated the evilocity of the Longhorns, being willing
: to essentially give away a shot at the conference title just to keep the
: Aggies out of the tournament. Now that's dedication to a cause.

I donated to their slush fund.

cb
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