an oracle machine is an abstract machine used to study decision problems. It can be visualized as a Turing machine with a black box, called an oracle, which...
15 KB (2,014 words) - 05:07, 1 April 2024
Post's theorem (section Oracle machines)
an oracle Turing machine that, given an oracle for B {\displaystyle B} , computes the characteristic function of A {\displaystyle A} . The Turing jump...
18 KB (3,832 words) - 19:55, 23 July 2023
Computability theory (redirect from Turing computability)
the halting problem for oracle Turing machines running with oracle A. The Turing jump of any set is always of higher Turing degree than the original...
54 KB (6,419 words) - 10:46, 16 July 2024
Church's work intertwined with Turing's to form the basis for the Church–Turing thesis. This thesis states that Turing machines, lambda calculus, and other...
73 KB (9,413 words) - 23:29, 18 October 2024
computability theory, a Turing reduction from a decision problem A {\displaystyle A} to a decision problem B {\displaystyle B} is an oracle machine that decides...
12 KB (1,841 words) - 11:40, 11 June 2024
cellular automaton) is said to be Turing-complete or computationally universal if it can be used to simulate any Turing machine[citation needed] (devised by...
29 KB (3,237 words) - 05:54, 22 September 2024
when there exists an oracle Turing machine which computes some function of P whenever it is given some function from Q as an oracle. Medvedev reducibility...
2 KB (152 words) - 01:11, 10 July 2024
Turing reducibility. A set A {\displaystyle A} of natural numbers is Turing reducible to a set B {\displaystyle B} if and only if there is an oracle Turing...
13 KB (1,982 words) - 04:46, 16 September 2023
Hypercomputation (redirect from Infinite-time Turing machine)
super-Turing computation is a set of hypothetical models of computation that can provide outputs that are not Turing-computable. For example, a machine that...
30 KB (3,348 words) - 13:32, 27 August 2024
In computer science and mathematical logic the Turing degree (named after Alan Turing) or degree of unsolvability of a set of natural numbers measures...
24 KB (3,130 words) - 01:59, 26 September 2024
problem, the Turing jump returns the set of Turing machines that halt when given access to an oracle that solves that problem. The Turing jump of X can...
8 KB (893 words) - 18:12, 18 January 2024
Halting problem (redirect from Lossy Turing machine)
Turing machine starting from a given state ever print a given symbol?") and to the printing problem considered in Turing's 1936 paper ("does a Turing...
53 KB (7,344 words) - 23:14, 11 August 2024
computing, in which Turing machines are augmented with so-called oracles, allowing the study of problems that cannot be solved by Turing machines. John von Neumann...
150 KB (15,146 words) - 12:41, 16 October 2024
computability theory, the Church–Turing thesis (also known as computability thesis, the Turing–Church thesis, the Church–Turing conjecture, Church's thesis...
57 KB (6,730 words) - 21:09, 19 September 2024
trinary function tripartition Turbo-BM Turbo Reverse Factor Turing machine Turing reduction Turing transducer twin grid file two-dimensional two-level grid...
35 KB (3,137 words) - 09:02, 8 October 2024
Computability (section Power of Turing machines)
computability notions weaker than Turing machines are studied in automata theory, while computability notions stronger than Turing machines are studied in the field...
21 KB (3,293 words) - 19:16, 22 May 2024
the proof is a string ∈ Σ∗). And the verifier is a randomized oracle Turing Machine V (the verifier) that checks the proof π for the statement that...
10 KB (1,238 words) - 21:18, 4 October 2024
purposes). Oracle cloning with improper domain separation breaks security proofs and can lead to successful attacks. According to the Church–Turing thesis...
14 KB (1,773 words) - 03:44, 7 September 2024
A set A is computably enumerable with oracle B (or simply "in B") when there is a Turing machine with oracle B which enumerates the members of A; this...
9 KB (1,197 words) - 18:00, 28 June 2024
(BPP) is the class of decision problems solvable by a probabilistic Turing machine in polynomial time with an error probability bounded by 1/3 for all...
19 KB (2,455 words) - 19:56, 18 July 2024
Computable function (redirect from Turing computable)
computable functions are the Turing-computable functions and the general recursive functions. According to the Church–Turing thesis, computable functions...
24 KB (3,393 words) - 17:23, 9 October 2024
contained within PSPACE. The hierarchy can be defined using oracle machines or alternating Turing machines. It is a resource-bounded counterpart to the arithmetical...
16 KB (2,690 words) - 13:46, 29 July 2024
Wayback Machine Mitchell, T. (1997). Machine Learning. McGraw Hill. p. 2. ISBN 978-0-07-042807-2. Harnad, Stevan (2008), "The Annotation Game: On Turing (1950)...
134 KB (14,766 words) - 14:00, 14 October 2024
Algorithm (section Turing machines)
its input increases. Per the Church–Turing thesis, any algorithm can be computed by any Turing complete model. Turing completeness only requires four instruction...
58 KB (6,720 words) - 01:06, 18 October 2024
problem in NP can be reduced in polynomial time by a deterministic Turing machine to the Boolean satisfiability problem. The theorem is named after Stephen...
19 KB (2,354 words) - 01:15, 26 May 2024
problems that are solvable in polynomial time by a deterministic Turing machine with an oracle for some decision problem in NP. In other words, a problem X...
2 KB (290 words) - 20:58, 8 May 2024
Quantum computing (redirect from Quantum Random Access Machine)
science began to converge. In 1980, Paul Benioff introduced the quantum Turing machine, which uses quantum theory to describe a simplified computer. When digital...
115 KB (12,556 words) - 01:46, 19 October 2024
formalizations of the concept, a Turing reduction from A to B is a Turing machine augmented with a special instruction "query the oracle". This instruction takes...
11 KB (1,437 words) - 15:18, 5 September 2024
that the fundamental conception is owing to Turing—in so far as not anticipated by Babbage.... Both Turing and von Neumann, of course, also made substantial...
35 KB (4,170 words) - 17:11, 14 October 2024
given above. If S is a Turing computable set, then both S and its complement are recursively enumerable (if T is a Turing machine giving 1 for inputs in...
25 KB (4,584 words) - 14:43, 24 August 2024