use a single queryset for updating model to minimize memory load and use caching. Also, I was re-initializing the parameter estimates everytime, which slows things down a lot.
use a single queryset for updating model to minimize memory load and use caching. Also, I was re-initializing the parameter estimates everytime, which slows things down a lot.

cmaclell/humanranker,cmaclell/humanranker,cmaclell/humanranker,cmaclell/humanranker