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re: The Big 10 and ACC are setting the stage for locking up 3/4 playoff spots

Posted on 12/13/20 at 7:06 pm to
Posted by Ross
Member since Oct 2007
47824 posts
Posted on 12/13/20 at 7:06 pm to
Well I think maximizing objectivity should be a goal, and things like Massey are currently pretty great for that and have done a great job so I’m trying to not throw the baby out with the bath water.

The creation of a minimum game threshold until we actually trust the Massey Composite doesn’t seem that unreasonable to me and I’d think we could track how much volatility the composite has week to week over the previous 20 seasons and once the volatility shrinks sufficiently in each season we can understand how many games are needed until the rankings are stable for your average season. There is no way to eliminate subjectivity here, but it seems like a pathway to minimize it.
This post was edited on 12/13/20 at 7:08 pm
Posted by Bama323_15
Member since Jan 2013
2100 posts
Posted on 12/13/20 at 7:13 pm to
quote:

JayWhite


I found the contrarian...who thinks he has a hot take...
Posted by turnpiketiger
Southeast Texas
Member since May 2020
9512 posts
Posted on 12/13/20 at 7:18 pm to
A&M deserves that 4 spot. No fricking debate!!
Posted by JayWhite
Member since Nov 2020
1008 posts
Posted on 12/13/20 at 7:23 pm to
quote:

Well I think maximizing objectivity should be a goal, and things like Massey are currently pretty great for that and have done a great job so I’m trying to not throw the baby out with the bath water.


We tried that, and it got us right back to my point all along. Massey and Sagarin support what I've been saying.

quote:

The creation of a minimum game threshold until we actually trust the Massey Composite doesn’t seem that unreasonable to me and I’d think we could track how much volatility the composite has week to week over the previous 20 seasons and once the volatility shrinks sufficiently in each season we can understand how many games are needed until the rankings are stable for your average season. There is no way to eliminate subjectivity here, but it seems like a pathway to minimize it.


Minimum game requirements are inherently arbitrary. There's no way we could objectively say what they should be from year to year, and certainly no way to have done it prior to this season.

You admitted that the best option we currently have for objectivity mostly supports the current rankings.

If your point is simply that we should continue to improve the process, sure, I'd agree with that.

If it's that we have some better way of determining the best four teams this year, I don't think I'm convinced.
Posted by JayWhite
Member since Nov 2020
1008 posts
Posted on 12/13/20 at 7:25 pm to
quote:

I found the contrarian...who thinks he has a hot take...


Contrarian to what? Hot take?

You do know that both polls, the committee, the computers, and the media have the same top four as I have right now, right?
Posted by Ross
Member since Oct 2007
47824 posts
Posted on 12/13/20 at 7:29 pm to
quote:

We tried that, and it got us right back to my point all along. Massey and Sagarin support what I've been saying.


I said “akin to Massey” originally and for this reason. They are the best composite of metrics that we have, but we can strive to improve them and I think 2020 is exposing a weakness in the metrics.

quote:

There's no way we could objectively say what they should be from year to year, and certainly no way to have done it prior to this season.


If you analyze decades and decades of data regarding week to week team ranking volatility, and take the a standard deviation less than the mean number of weeks towards 90% convergence to keep it on the less restrictive side; or some type of exercise similar to this, I don’t see how that’s super unreasonable or excessively subjective.
This post was edited on 12/13/20 at 7:35 pm
Posted by AbuTheMonkey
Chicago, IL
Member since May 2014
8018 posts
Posted on 12/13/20 at 7:38 pm to
quote:

I would probably argue the formulas being used haven’t appropriately normalized for number of games played, but as I sense we aren’t going to converge on this issue and it’s time for food, I’ll leave on that note. But I understand you can attack me for wanting to tinker with an objective metric and if we have the freedom to do so, it introduces subjectivity. But it comes down to I think the objective metric needs to be commonly agreed upon, and for my money I think the algorithm needs some adjustment.


The bigger problem is that the all the conferences played in closed loops.
Posted by noonan
Nassau Bay, TX
Member since Aug 2005
36904 posts
Posted on 12/13/20 at 7:46 pm to
They should have just done a 6 or 8 team playoff for one year and let the conferences send their champion and let in a couple of group of 5 or non conference champions.

Since we are just making rules up as we go why not.
Posted by ClampClampington
Nebraska
Member since Jun 2017
3967 posts
Posted on 12/13/20 at 8:03 pm to
quote:

Just write them in on the virtue of all those impressive wins versus BYE


Isn’t that how Clemson gets in every year?
Posted by JayWhite
Member since Nov 2020
1008 posts
Posted on 12/13/20 at 8:10 pm to
quote:

I said “akin to Massey” originally and for this reason. They are the best composite of metrics that we have, but we can strive to improve them and I think 2020 is exposing a weakness in the metrics.


You sure did. And the best composite of metrics we have still agree with what I've said.

Sure, let's improve them. What does that look like? If it's a random insertion of minimum game requirements, I'll pass on that.

quote:

If you analyze decades and decades of data regarding week to week team ranking volatility, and take the a standard deviation less than the mean number of weeks towards 90% convergence to keep it on the less restrictive side; or some type of exercise similar to this, I don’t see how that’s super unreasonable or excessively subjective.


What do the last few decades of data say about teams like Cincinnati going up against Bama, Clemson, Ohio State, etc? What do they say about about teams who were thoroughly beaten by four touchdowns? What about Ohio State versus their conference.

If we're going to take in data to fill in the gaps, let's do that, but we can't ignore what's inconvenient to our desired conclusions.
Posted by Muahahaha
Ohio
Member since Nov 2005
5942 posts
Posted on 12/13/20 at 8:16 pm to
quote:

A&M deserves that 4 spot. No fricking debate!!



This post was edited on 12/13/20 at 8:18 pm
Posted by chalmetteowl
Chalmette
Member since Jan 2008
47751 posts
Posted on 12/13/20 at 8:17 pm to
quote:

and say playing the actual football team is significantly more impressive. I’m really not sure how that’s even in dispute. You have to go out there, risk injury and an upset, and actually play a football game.
when you’re comparing schedules, when one team has played 11 and one 12, the 12th spot for a team that’s played 12 is often against an opponent who might as well be a bye for a team trying to make the CFP
Posted by Ross
Member since Oct 2007
47824 posts
Posted on 12/13/20 at 8:21 pm to
quote:

the 12th spot for a team that’s played 12 is often against an opponent who might as well be a bye for a team trying to make the CFP


For the reasons in the original quote and a few others, I really do not hop on board with this stance entirely, although I get what you are driving at.

I’d also say the marginal utility between an eleventh and twelfth sample is dramatically different than between a hypothetical sixth and tenth sample, rendering the original argument I put forth less relevant
Posted by turnpiketiger
Southeast Texas
Member since May 2020
9512 posts
Posted on 12/13/20 at 8:22 pm to
How bout you pussies play more than 5 games
Posted by Ross
Member since Oct 2007
47824 posts
Posted on 12/13/20 at 8:25 pm to
quote:

If we're going to take in data to fill in the gaps, let's do that, but we can't ignore what's inconvenient to our desired conclusions.


Again, no skin in this game and I completely get this attitude. I’m an engineer by trade and this is something that comes up often with numerical simulations. You should be able to demonstrate predictive power with a numerical method for a given experiment without having to alter the methods between runs.

However, I’m trying to address what I perceive to be a glaring weakness in using our quasi-objective metrics with an improvement. You don’t seem won over by my idea of an improvement, and frankly it won’t matter past this season as I doubt we have to cross this bridge again, but I do think we need a fair and quasi-objective way to normalize between dramatically different sample sizes and I’m not sure any algorithm used in Massey really does that at all
Posted by JayWhite
Member since Nov 2020
1008 posts
Posted on 12/13/20 at 9:01 pm to
quote:

However, I’m trying to address what I perceive to be a glaring weakness in using our quasi-objective metrics with an improvement. You don’t seem won over by my idea of an improvement, and frankly it won’t matter past this season as I doubt we have to cross this bridge again, but I do think we need a fair and quasi-objective way to normalize between dramatically different sample sizes and I’m not sure any algorithm used in Massey really does that at all


Maybe, and I apologize if this doesn't apply to you, but it seems that this is something new that is focused around the outcome of this season. I haven't been here long enough to know one way or the other, but I'd wonder if the same fervor against the Big Ten and Pac 12 would exist of the roles were reversed.

I'm not opposed to improvement. No good data scientist would be opposed to it. I'm opposed to alterations for the sake of different outcomes.

I don't know what Massey and Sagarin do to handle a disparity in number of games played, but I'd suspect it isn't nothing.
Posted by ragincajun03
Member since Nov 2007
21360 posts
Posted on 12/14/20 at 7:56 am to
quote:

OSU is not getting in without playing this weekend.


Their whores on the CFP committee will still let them in.
Posted by VABuckeye
Naples, FL
Member since Dec 2007
35583 posts
Posted on 12/14/20 at 8:22 am to
quote:

A&M deserves that 4 spot. No fricking debate!!


Look at their wins and the records of their opponents and say that again with a straight face.
Posted by VABuckeye
Naples, FL
Member since Dec 2007
35583 posts
Posted on 12/14/20 at 8:26 am to
quote:

However, I’m trying to address what I perceive to be a glaring weakness in using our quasi-objective metrics with an improvement. You don’t seem won over by my idea of an improvement, and frankly it won’t matter past this season as I doubt we have to cross this bridge again, but I do think we need a fair and quasi-objective way to normalize between dramatically different sample sizes and I’m not sure any algorithm used in Massey really does that at all


What's a bit amusing is that the SEC has still been playing an 8 game conference season in hte past. It's a clear advantage vs conferences that are now playing 9 conference opponents in a normal season. There are inequities between conferences in scheduling and it would be nice to see a baseline established to even out the playing field.
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