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Elo ratings

Forum Index > SC2 General
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Tevinhead
Profile Joined August 2010
United Kingdom470 Posts
September 30 2010 02:53 GMT
#1
I noticed this page for the first time.

http://www.teamliquid.net/tlpd/sc2-korean/players/detailed-elo

How are these ratings worked out? What are they based on?

I did try a forum search and couldn't find an answer.

Thanks =d
Backpack
Profile Blog Joined March 2010
United States1776 Posts
September 30 2010 02:56 GMT
#2
They are based on major tournaments.

As you can see it's a fairly new system and all they have in there are some GSL games.
"You people need to just generally care a lot less about everything." -Zatic
Slago
Profile Joined August 2010
Canada726 Posts
Last Edited: 2010-09-30 02:59:24
September 30 2010 02:59 GMT
#3
doesnt seem worthy of a thread :/
I came here to kick ass and chew bubble gum and I'm all out of... ah forget it
Tazza
Profile Blog Joined May 2009
Korea (South)1678 Posts
September 30 2010 03:01 GMT
#4
Only for 3 players though
Tevinhead
Profile Joined August 2010
United Kingdom470 Posts
September 30 2010 03:02 GMT
#5
^ Doesn't seem worthy of a reply

Backpack's answer was vague though, is there a detailed explanation on how elo is worked out?
mierin
Profile Joined August 2010
United States4943 Posts
September 30 2010 03:04 GMT
#6
On September 30 2010 12:02 Tevinhead wrote:
^ Doesn't seem worthy of a reply


Youch, blueflamed.
JD, Stork, Calm, Hyuk Fighting!
TUski
Profile Joined April 2010
United States1258 Posts
September 30 2010 03:06 GMT
#7
On September 30 2010 12:02 Tevinhead wrote:
^ Doesn't seem worthy of a reply

Backpack's answer was vague though, is there a detailed explanation on how elo is worked out?


Looks like the ELO is based at 2000, and increases/decreases with games played against race X. That's all I gleaned from a quick look at numbers :/
"There is nothing more cool than being proud of the things that you love." - Day[9]
BoldReceiver
Profile Joined September 2010
United States3 Posts
October 06 2010 00:30 GMT
#8
Wikipedia does a good job of explaining the Elo system:
http://en.wikipedia.org/wiki/Elo_rating_system
The most important thing to take away is that the rating itself doesn't mean anything. It's the difference between two players ratings that gives you useful information regarding the likelyhood of a games possible outcomes.
You got your whole life to do something and that's not very long -- Ani Difranco
delo
Profile Joined August 2010
United States333 Posts
October 06 2010 00:58 GMT
#9
On October 06 2010 09:30 BoldReceiver wrote:
Wikipedia does a good job of explaining the Elo system:
http://en.wikipedia.org/wiki/Elo_rating_system
The most important thing to take away is that the rating itself doesn't mean anything. It's the difference between two players ratings that gives you useful information regarding the likelyhood of a games possible outcomes.

Bingo.

All generalized ratings systems (like Elo, Glicko, and TrueSkill) are descendants of L.L. Thurstone's work in the 1920's on finding ways of quantifying the 'sense distance' between various stimuli. The Bradley-Terry-Luce (or BTL) models, formulated in 1952, built on that foundation and came up with an easy to implement approach which made it possible to quantify ratings of things (in this case the taste of pork roasts based on what types of corn rations the pigs were given) from the preferences of judges given pairs of roasts to compare (i.e., 'sample A tastes better than B'). Soon thereafter, Arpad Elo - a master chess player - decided he could use this general approach to improve chess player ratings, which were using the shitty Harkness system up till that point. Thus, in 1959, the Elo Rating System was born, which is not much different from BTL except that it assumes skill is normally-distributed (instead of logistically distributed) and that variance in skill is constant across all players. The latter condition is a key point of contention with the Elo system, and so in the 80's/90's, Mark Glickman devised the Glicko rating system, which allows each player's skill variance to vary according to their match history. And building on this framework, Ralf Herbrich and Thore Graepel blew the whole thing wide open with TrueSkill, a factor graph-based approach which handles teams (and arbitrary numbers of them), and is the primary skill rating system used in Xbox Live today.

So there you go.
dukethegold
Profile Blog Joined August 2009
Canada5645 Posts
Last Edited: 2010-10-06 01:00:01
October 06 2010 00:59 GMT
#10
WOAH, Fruit Dealer is already 2227. In BW, if you are currently sitting at 2227, you are a god amongst BW players, and ace amongst your pro-team.
Daxten
Profile Joined October 2009
Germany127 Posts
October 06 2010 01:15 GMT
#11
On October 06 2010 09:59 dukethegold wrote:
WOAH, Fruit Dealer is already 2227. In BW, if you are currently sitting at 2227, you are a god amongst BW players, and ace amongst your pro-team.


that system is based from 1000p, this one starts at 2000
Crt
Profile Joined November 2009
247 Posts
October 06 2010 01:17 GMT
#12
Who decided to starts at 2000? quite confusing.
l10f *
Profile Blog Joined January 2009
United States3241 Posts
October 06 2010 01:25 GMT
#13
On October 06 2010 10:15 Daxten wrote:
Show nested quote +
On October 06 2010 09:59 dukethegold wrote:
WOAH, Fruit Dealer is already 2227. In BW, if you are currently sitting at 2227, you are a god amongst BW players, and ace amongst your pro-team.


that system is based from 1000p, this one starts at 2000


BW ELO rankings also started at 2k
Writer
Hier
Profile Blog Joined November 2009
2391 Posts
October 06 2010 01:35 GMT
#14
Hmm, ELO peaks aren't recorded yet. Is there a buffer period for starting leagues to establish an equilibrium?
"But on a more serious note..." -everyone on this forum at some point.
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