Computable Variants of AIXI which are More Powerful than AIXItl

05/22/2018

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by   Susumu Katayama, et al.

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This paper presents Unlimited Computable AI, or UCAI, that is a family of computable variants of AIXI. UCAI is more powerful than AIXItl, that is a conventional family of computable variants of AIXI, in the following ways: 1) UCAI supports models of terminating computation, including typed lambda calculus, while AIXItl only supports Turing machine with timeout t, which can be simulated by typed lambda calculus for any t; 2) unlike UCAI, AIXItl limits the program length to l.