Partially Autonomous Belief

Partially Specified Belief Functions

This paper presents a procedure to determine a complete belief function from the known values of belief for some of the subsets of the frame of discerment. The method is based on the principle of minimum commitment and a new principle called the focusing principle. This additional principle is based on the idea that belief is specified for the most relevant sets: the focal elements. The resulti...

Combining partially independent belief functions

The theory of belief functions manages uncertainty and also proposes a set of combination rules to aggregate opinions of several sources. Some combination rules mix evidential information where sources are independent; other rules are suited to combine evidential information held by dependent sources. In this paper we have two main contributions: First we suggest a method to quantify sources’ d...

Belief Propagation on Partially Ordered Sets

Decision Making with Partially Consonant Belief Functions

This paper studies decision making for Wal­ ley's partially consonant belief functions (pcb ) . In a pcb, the set of foci are par­ titioned. Within each partition, foci are nested. The pcb class includes probability and possibility functions as extreme cases. We adopt an axiomatic system, similar in spirit to von Neumann and Morgenstern's ax­ ioms for preferences leading to the linear util­ ity...

Autonomous Rover Navigation in Partially Known Terrain

This paper describes the work done in autonomous operation of mobile robot at the Canadian Space Agency. The Mobile Robotic Test bed (MRT) components are presented. The autonomy software, implemented using a behaviour-based approach, is presented. The peripheral sub-systems used by the reactive engine, such as vision and path planner are also described.