2019 team rankings according to Champion Data | Page 6 | BigFooty

2019 team rankings according to Champion Data

Discussion in 'AFL - The Australian Football League' started by RUNVS, Nov 29, 2018.

  1. telsor

    telsor Brownlow Medallist

    Richmond
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    It's also 12 months old.
     

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  2. AmericanAFL

    AmericanAFL Debutant

    Melbourne
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    What do the outliers (Brisbane, WCE for example) tell you about where deficiencies may exist currently in how the AI is evaluating the on field play?

    The positive expectation the AI thinks Brisbane players are accruing, isn’t translating to the bottom line (wins/losses), with the reverse being true for WCE.

    Do small sample sizes and “luck” (bad bounces, bad officiating, etc) account for these kinds of outliers, or is it more of a case of the AI is still grappling with an extremely complex game and something about how these teams’ players contribute to winning/losing games isn’t being captured by the system at this point in time?
     
  3. Isaac Cumming No 1

    Isaac Cumming No 1 Premium Platinum

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    When I saw the Lions play early this year, they were actually doing a lot right. This would be reflected in their stats. They just played like a young team that hadn't learnt to win yet.

    WC played a different gamestyle than most clubs this year. A bit like the Hawks in their dominant period. It's very focussed on maintaining posession and their stats will show a lot of uncontested marks and possessions.

    Most clubs are more territory focussed and will have better contested stats, training and seeking contests more.

    Without breaking down the algorithm I expect how it rates uncontested possessions might be a strong clue.

    I dont think it's silly to predict a big ruse for the Lions BTW, they did start winning late last year. Nothings certain from year to year though.
     
  4. The Falcon Strike

    The Falcon Strike Hall of Famer

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    Wonder if they’ve considered wins and losses in their algorithm
     
  5. Tony_Clifton

    Tony_Clifton Club Legend

    Fremantle
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    The sample size is an interesting one because you would naturally think the bigger the better but the bigger it is the longer you go back in history. The game is evolving quickly which may make machine learned data from past games inaccurate for the todays game. There are also things that are common but hard to measure. For example kicking to a marking contest where the kicker has deliberately put it to his teamates advantage. I believe this one is considered to subjective for CD to count.

    You would also have to look at the players coming in and out post 2018. Recency bias also plays a part. Dom Sheed was amazing in the grand final but his worth is calculated off a weighted 40 odd game average.

    People look at who won the grand final and then say it is the best list but outsiders win more frequently than the public imagines. West coast were paying $50 before the season started. Noone thought they had a steller list then.

    Halfway through the season the AFL stopped having WA umpires for west coast home games. The AFL implied they were getting a helping hand from the umpires. If this is the case then it might make a team better than they actually are. (For all you West Coast fans, yes the Eagles did in fact win in the only game that counts which I do know is played at the MCG).

    I think for the machine learning to have a big enough sample size they use what would the average team expect to score from a given position rather than what this particular team would expect to score. Different teams strategise to make best use of their particular resources which makes them different to the average team.

    I don't know the answer to the big question though and for peace of mind as a freo fan i like to think of 2018 as an unusual monte carlo event.
     
    Last edited: Dec 1, 2018
    Schmicko and nineteen eighty like this.
  6. Freomaniac

    Freomaniac Brownlow Medallist

    Fremantle
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    Shows you how much of a joke Champion data is. Freo apparently had the worst best 22 in the comp last year and finished 14th.
     
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  7. juss

    juss Brownlow Medallist

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    Geez some people get so offended with a stats based algorithm. Eyes over numbers always.
     
    Cudi_420 likes this.
  8. Tony_Clifton

    Tony_Clifton Club Legend

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    images (10).jpeg
     
  9. DrEvil_

    DrEvil_ Norm Smith Medallist

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    It's not the ASADA banned list.
     
  10. Turboman1994

    Turboman1994 Club Legend

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    Shows the flaws in a stats based system. As of last year I don’t think it’s unfair to rank WCE def top 2 and Forward top 2-3 and midfield 6th at worst being extremely pessimistic that’s a bottom top 8 side st worst.
     
    Isaac Cumming No 1 likes this.
  11. biggiemediums

    biggiemediums Premiership Player

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    I think they have underrated the amount of elites... but you sir, have vastly overrated. You think Essendon have 7 elite players?
     

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  12. Benny78

    Benny78 Norm Smith Medallist

    Geelong
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    Just shows you can win a premiership by getting lucky and doing half the work of other teams
     
  13. amazingjoshy

    amazingjoshy Premiership Player

    West Coast
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    for the life of me, I can't figure out what this post means
     
  14. Isaac Cumming No 1

    Isaac Cumming No 1 Premium Platinum

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    You won the flag, why do you care?
     
  15. Turboman1994

    Turboman1994 Club Legend

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    I couldn’t care less it’s just bemusing
     
    Isaac Cumming No 1 likes this.
  16. StonesThrow

    StonesThrow Norm Smith Medallist

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  17. Simon_Says

    Simon_Says Premium Gold

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    Im baffled how Hunt is considered "Elite when is isnt in out best 22
     
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  18. Simon_Says

    Simon_Says Premium Gold

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    Gawn AA starting ruck yet second best in comp; good logic there

    Lever misses most the year also Named in top 5 defenders, seems legit.. . I would of replaced him with May.
     
  19. Topkent

    Topkent Premium Platinum

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    That's not effective at all.

    A bloke who torps it 70m to a 50/50 gets 70m gained even if the other side kills the contest and rebounds for a goal where as someone like Josh Kennedy might win the ball in dispute in a contest and handball 5m back wards to the sweeper who sets up a scoring play.

    Kennedy is -5m on that metric.

    Bloke who torps it 70m won't get the footy without Kennedy winning it to him in the first place.

    It's like saying Gary Rohan is a more effective player than Patrick Cripps which is just plain wrong.
     
  20. Topkent

    Topkent Premium Platinum

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    That doesn't makes sense.
    Champion data is a statistical analysis.
    AA is just 7 old blokes opinion and there probably hasn't been a closer run contest than the Gawn Grundy debate this year.

    I don't mind people thinking Grundy was better, they were both ******* sensational and it's a shitty pissing contest to name a best.

    Gawns a better Tap ruck and Marking player but Grundy gets more disposals and plays as an extra midfielder with much better disposal by both hand and foot.

    Both had unreal seasons though.
     
  21. ParapMarkets

    ParapMarkets Premiership Player

    Carlton
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    It’s analysing lists going into 2019, Neale is rated extremely highly in their rankings. They have a big problem though, WC haven’t lost anyone and are ranked 11. They have a flaw in their system.
     
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  22. HairyO

    HairyO Brownlow Medallist

    Hawthorn
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    You need only look at their 2018 predictions to know its garbage stats.

    All they are proving is either:
    You cant quantify the unquantifiable
    Or
    Their markers for performance are completely wrong

    Either of the above is true. Or both. But its at least one.
     
  23. Mningasimisonda

    Mningasimisonda Premiership Player

    Geelong
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    I think the question is whether they mean anything. It all comes down to what stats they choose to prioritise. And from people's comments, the choices don't seem to align that well with reality.

    Also, what's important changes all the time and different style lists work well for different game plans. For example, Richmond and Dogs relied on speed and hardness, while West Coast were more traditional and relied on talls marking in defense and forward, and quick clean ball movement.
     
  24. CrowInFiji

    CrowInFiji Debutant

    Adelaide
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    I assume the majority of posters believe that the ladder will remain the same in 2019 as it was in 2018?

    I'm not saying the list looks spot on, but just because x team won the flag or x team hasnt finished bottom 6 in decades doesnt mean their list is best/poor.

    Teams overachieve, underachieve.

    Anyone who suggests that a team who finishes 5th has the 5th best list is a moron. They might have the 3rd best or the 10th best.
     
  25. Hamingja

    Hamingja Norm Smith Medallist

    Geelong
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    14th v 18th, you are splitting hairs there buddy.

    Plus I'm sure you would consider Lyon a better coach than Bolton, Richardson and Dew.

    Plus Freo have a much bigger home ground advantage than Carlton, St Kilda and GC who spent the year playing away from home because of the Commonwealth Games.

    Champion Data are not taking those last two points into account. Nor Carlton getting savaged by injuries for example.

    Their system has thrown up some clearly wrong results but having the 2018 version of Freo as the worst best 22 is not one of the bad ones, they might not have been the absolute worst but they were pretty close.
     
    Checkered likes this.
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