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I Don't Want to Think About it Now:Decision Theory With Costly Computation
Computation plays a major role in decision making. Even if an agent is
willing to ascribe a probability to all states and a utility to all outcomes,
and maximize expected utility, doing so might present serious computational
problems. Moreover, computing the outcome of a given act might be difficult. In
a companion paper we develop a framework for game theory with costly
computation, where the objects of choice are Turing machines. Here we apply
that framework to decision theory. We show how well-known phenomena like
first-impression-matters biases (i.e., people tend to put more weight on
evidence they hear early on), belief polarization (two people with different
prior beliefs, hearing the same evidence, can end up with diametrically opposed
conclusions), and the status quo bias (people are much more likely to stick
with what they already have) can be easily captured in that framework. Finally,
we use the framework to define some new notions: value of computational
information (a computational variant of value of information) and and
computational value of conversation.Comment: In Conference on Knowledge Representation and Reasoning (KR '10
Computation vs. Information Processing: Why Their Difference Matters to Cognitive Science
Since the cognitive revolution, it’s become commonplace that cognition involves both computation and information processing. Is this one claim or two? Is computation the same as information processing? The two terms are often used interchangeably, but this usage masks important differences. In this paper, we distinguish information processing from computation and examine some of their mutual relations, shedding light on the role each can play in a theory of cognition. We recommend that theorists of cognition be explicit and careful in choosing\ud
notions of computation and information and connecting them together. Much confusion can be avoided by doing so
Spartan Daily, May 16, 1966
Volume 53, Issue 121https://scholarworks.sjsu.edu/spartandaily/4855/thumbnail.jp
Spartan Daily December 5, 2011
Volume 137, Issue 50https://scholarworks.sjsu.edu/spartandaily/1104/thumbnail.jp
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