The conference web site: http://www.umiacs.umd.edu/conferences/sum2007/
Massive uncertainty, of course, can lead to great uncertainty -- or, perhaps more often (when extended argument is so extended that it is untractable), to diffuse uncertainty judgments. But possibilities such as these do not do away with the distinctness of massive uncertainty. For example, massive amounts of data and very extended argument can, in principle, sometimes generate the conclusion that the probability of a very granular event is very high or very low.)
The conference blurb states in part:
The Scalable Uncertainty Modeling conference aims to bring [together] all those interested in the management of large volumes of uncertainty together, irrespective of whether they [presumably, large volumes of uncertainty rather than people] are in databases or in AI.