Credal and pignistic reasoning in ergodic and non-ergodic texts
نویسنده
چکیده
This paper discusses the difference between ergodic and non-ergodic texts by considering the different levels of reasoning required of an agent in each case. The difference indentified between such texts is based on the distinction between credal and pignistic reasoning in the transferable belief model. It is argued that non-ergodic texts require an active agent to reason about the state of the world, and thus operate at the credal level; while ergodic texts require that the belief function of an agent be transformed into a probability function for the purposes of decision making, and therefore entail both credal and pignistic reasoning. The difference between ergodic and non-ergodic texts considered in these terms is illustrated through comparing narratives from the CSI: Crime Scene Investigation franchise.
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