algorithm - Help on Elo System specifics for large group competitions -



algorithm - Help on Elo System specifics for large group competitions -

i'm trying implement elo-based ranking scheme sport website deals with.

there's few one thousand competitors, , each competition sees 50 500 of them go against clock. fastest man wins.

my initial thought race 50 people can treated 50*49/2 = 1225 one-on-one matches.

i of these comparisons in 1 go, , adjust each competitors rating @ end. i.e. if someone's rating 1600 remains 49 comparisons make, , adjusted sum of changes @ end. doesn't seem right... should doing?

the problem have if 1 (normally strong) competitor has terrible day (e.g. injury) can beaten 40+ people beat. have lower ratings him, , such rating gets pummelled. recommended k-factor of 32 see swings of thousands of points in single event... if drastically cut down k factor (say, 1) things better, sense flawed.

instead of summing of adjustments, should averaging them in way? or taking extreme value? got head in bit of twist here!

any help appreciated, give thanks you!

rather treating race of 50 1225 one-on-one matches think improve results treating 50 one-on-one matches it's player vs. max(everybody else). unless there's reason racing against 10 opponents more hard racing against best of 10 opponents in winner-takes-all scenario?

algorithm ranking

Comments

Post a Comment

Popular posts from this blog

iphone - Dismissing a UIAlertView -

iphone - Dismissing a UIAlertView - i set in app purchase app, , when user taps button, purchase started. basically, tap button, , depending on speed on net connection, waiting 10 seconds until new alert view comes asking if purchase product. user tap button multiple times since nil came up, , multiple purchase alert views come up. additionally, maybe seen user app bug. in end, problem. i want alert view come spinning wheel says "loading..." when users taps purchase button. problem is, how dismiss when new alert view comes asking user if want purchase product? if ([uialertview alloc] says: @"whatever apple's alert view says") { //dismiss "loading..." alert view here } i uncertainty work, input appreciated. thanks! you need have access alertview. can this. create alertview instance var in app delegate , when want show loading initialize instance var assign property , when want dismiss phone call [alertviewinstance d...
Read more

intellij idea - Update external libraries with intelij and java -

intellij idea - Update external libraries with intelij and java - simple plenty really. i'm using apache jars, i'll create changes jar's every often. these jars listed external libs in intelij (i.e classpath looking install dir of jar's). when create changes intelij doesn't seem know new implementation. have remove jar external library , re-ad it. does know have intelij picks changes automatically ? i've done clean , rebuild project had little effect. you can go preferences -> build, execution, deployment -> build tools -> maven -> importing , check box says import maven projects automatically . in mac, can command + shift + a , come in action reimport , click on reimport maven projects . intellij-idea
Read more

javascript - send data from a new window to previous window in php -

javascript - send data from a new window to previous window in php - i have image in main.php file : <img src="..\images\image.gif" class="cur" onclick="imgwin();"> when click on image below function has called : function imgwin() { imagewin=window.open("../pages/img.php","imagewin","toolbar=no,width=500,height=200,directories=no,menubar=no,scrollbars=yes"); } this function opens img.php in new window img.php file : <html> <head> <title>upload image</title> </head> <body> <form name="imgform" method="get" action="#"> address : <input type="file" name="imgurl" size="50"> description : <input type="text" name="description" size="50"> <input type="submit" value="sumbit...
Read more