Uncertainty Reasoning for the World Wide Web: Report on the URW3-XG Incubator Group

# The author's affiliation with The MITRE Corporation is provided for identification purposes only, and is not intended to convey or imply MITRE's concurrence with, or support for, the positions, opinions or viewpoints expressed by the author. Abstract. The Uncertainty Reasoning for the World Wide Web Incubator Group (URW3-XG) was chartered as a means to explore and better define the challenges of reasoning with and representing uncertain information in the context of the World Wide Web. The objectives of the URW3-XG were: (1) To identify and describe situations on the scale of the World Wide Web for which uncertainty reasoning would significantly increase the potential for extracting useful information; and (2) To identify methodologies that can be applied to these situations and the fundamentals of a standardized representation that could serve as the basis for information exchange necessary for these methodologies to be effectively used. This paper describes the activities undertaken by the URW3-XG, the recommendations produced by the group, and next steps required to carry forward the work begun by the group.