In theoretical computer science, a nondeterministic Turing machine (NTM) is a theoretical model of computation whose governing rules specify more than...

probabilistic. A probabilistic Turing machine is a type of nondeterministic Turing machine in which each nondeterministic step is a "coin-flip", that is...

deterministic Turing machine, or alternatively the set of problems that can be solved in polynomial time by a nondeterministic Turing machine. NP is the...

deterministic Turing machine (DTM) is a variant of the nondeterministic Turing machine (NTM). Intuitively, an NTM is just a regular Turing machine that has...

is short for "nondeterministic polynomial-time complete". In this name, "nondeterministic" refers to nondeterministic Turing machines, a way of mathematically...

problems on a deterministic Turing machine. Since any deterministic Turing machine is also a nondeterministic Turing machine, we have that L is contained...

which a deterministic (i.e., a-) Turing machine can be used to mimic the action of a nondeterministic Turing machine; Turing solved the matter in a footnote...

required for each state transition. A nondeterministic finite automaton (NFA), or nondeterministic finite-state machine, does not need to obey these restrictions...

relationship between partial Turing machines and total Turing machines: Can every partial function computable by a partial Turing machine be extended (that is...

A quantum Turing machine (QTM) or universal quantum computer is an abstract machine used to model the effects of a quantum computer. It provides a simple...

an infinite time hierarchy. The time hierarchy theorem for nondeterministic Turing machines was originally proven by Stephen Cook in 1972. It was improved...

Turing machine. This algorithm can be applied to an implicit graph whose vertices represent the configurations of a nondeterministic Turing machine and...

A multi-tape Turing machine is a variant of the Turing machine that utilizes several tapes. Each tape has its own head for reading and writing. Initially...

Zeno machines (abbreviated ZM, and also called accelerated Turing machine, ATM) are a hypothetical computational model related to Turing machines that...

programming Nondeterministic algorithm Nondeterministic model of computation Nondeterministic finite automaton Nondeterministic Turing machine Indeterminacy...

A Turing machine is a hypothetical computing device, first conceived by Alan Turing in 1936. Turing machines manipulate symbols on a potentially infinite...

Turing machine (or to be more precise, the definition of acceptance for such a machine) alternates between these modes. An alternating Turing machine...

A neural Turing machine (NTM) is a recurrent neural network model of a Turing machine. The approach was published by Alex Graves et al. in 2014. NTMs combine...

mechanism for making a nondeterministic choice, such as in a nondeterministic Turing machine. For these models, a nondeterministic algorithm is considered...

119112334170342540 steps before halting. The problem can be extended to nondeterministic Turing machines by looking for the system with the most states across all branches...

science, a universal Turing machine (UTM) is a Turing machine capable of computing any computable sequence, as described by Alan Turing in his seminal paper...

Turing machine is simple enough to construct, as a two-tape nondeterministic Turing machine.: 221  The first tape contains the input word w {\displaystyle...

"Post–Turing program" and "Post–Turing machine" were used by Martin Davis in 1973–1974 (Davis 1973, p. 69ff). Later in 1980, Davis used the name "Turing–Post...

characterization of PP is the set of problems that can be solved by a nondeterministic Turing machine in polynomial time where the acceptance condition is that a...

Turing machines are a kind of Turing machine with limited nondeterministic power, and were shown to be at least as powerful as deterministic Turing machines...

"compute f(x)", where f is the number of accepting paths of a nondeterministic Turing machine running in polynomial time. Unlike most well-known complexity...

NL, the class of decision problems that can be solved by a nondeterministic Turing machine using a logarithmic amount of memory space. The NL-complete...

language of an unambiguous Turing machine is defined to be the same language that is accepted by the nondeterministic Turing machine. A language of strings...

languages that can be recognized by a linear bounded automaton (a nondeterministic Turing machine whose tape is bounded by a constant times the length of the...

to supplement the article Turing machine. The following table is Turing's very first example (Turing 1937): "1. A machine can be constructed to compute...