Sunday, August 17, 2008

Self Promotion Pays Off

The games from the Congress have been factored into the ratings.

Before the congress I was -11.41904 with a sigma of 0.25708

After the congress I am -9.35656 with a sigma of 0.68605

I don't have all that far to go to get to 8 kyu :-) and with my new improved sigma it should be easier to get there.

I am very happy.


Alexander M Zoltai said...

Appears you rose in ranking and for that Congratulations !

What's "sigma"?

~ Alex

Terri said...

sigma is a statistical term. I am not a math person so I probably won't describe it perfectly, but a low sigma makes it more difficult for your rating to change for the better or for the worse. It has to do with how much confidence the rating system has in the rating with which it has provided you. Low sigma = more confidence... hight sigma = less confidence. When you self promote your sigma goes up, which makes future advancement or demotion more speedy.


Alexander M Zoltai said...

Thanks for the explanation.

I keep trying to play more games, download all the games I can from various sites, added a screensaver that runs through those games--things to keep me aware of a game I love but am held back from with all my other work...

... ... ...

~ Alex