7. The system of claim 1 , wherein the modeling component further comprising a weighting component that combines the probability provided by the open-world submodeling component and the probability provided by the closed-world submodeling component.
7. The system of claim 1 , wherein the modeling component further comprising a weighting component that combines the probability provided by the open-world submodeling component and the probability provided by the closed-world submodeling component. 10. The system of claim 7 , further comprising a profile component that generates a weight utilized by the weighting component based upon a consideration of user related characteristics.