9. The method of claim 1 , further comprising repeatedly generating the updated probabilities based on the previous updated probabilities and re-determining the updated relevance of documents to the query.
9. The method of claim 1 , further comprising repeatedly generating the updated probabilities based on the previous updated probabilities and re-determining the updated relevance of documents to the query. 10. The method of claim 9 , wherein generating the updated probabilities ceases when a change in the updated probabilities is less than a convergence threshold.