Annals of Pure and Applied Logic 94 (1-3):273-296 (1998)

Abstract
Inductive inference considers two types of queries: Queries to a teacher about the function to be learned and queries to a non-recursive oracle. This paper combines these two types — it considers three basic models of queries to a teacher (QEX[Succ], QEX[ The results for each of these three models of query-inference are the same: If an oracle is omniscient for query-inference then it is already omniscient for EX. There is an oracle of trivial EX-degree, which allows nontrivial query-inference. Furthermore, queries to a teacher cannot overcome differences between oracles and the query-inference degrees are a proper refinement of the EX-degrees. In the case of finite learning, the query-inference degrees coincide with the Turing degrees. Furthermore oracles can not close the gap between the different types of queries to a teacher
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DOI 10.1016/s0168-0072(97)00077-8
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References found in this work BETA

Classical Recursion Theory: The Theory of Functions and Sets of Natural Numbers.Piergiorgio Odifreddi - 1989 - Sole Distributors for the Usa and Canada, Elsevier Science Pub. Co..
Classical Recursion Theory.Peter G. Hinman - 2001 - Bulletin of Symbolic Logic 7 (1):71-73.
Degrees Joining to 0'. [REVIEW]David B. Posner & Robert W. Robinson - 1981 - Journal of Symbolic Logic 46 (4):714 - 722.

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Citations of this work BETA

Learning Via Queries and Oracles.Frank Stephan - 1998 - Annals of Pure and Applied Logic 94 (1-3):273-296.
Automata Techniques for Query Inference Machines.William Gasarch & Geoffrey R. Hird - 2002 - Annals of Pure and Applied Logic 117 (1-3):169-201.

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