nondeterministic turing machine造句
例句與造句
- "' NP "'can be defined similarly using nondeterministic Turing machines ( the traditional way ).
- Computationally, a context-sensitive language is equivalent with a linear bounded nondeterministic Turing machine, also called a linear bounded automaton.
- Given an unrestricted grammar, such a Turing machine is simple enough to construct, as a two-tape nondeterministic Turing machine.
- QBF is the canonical complete problem for PSPACE, the class of problems solvable by a deterministic or nondeterministic Turing machine in polynomial space and unlimited time.
- It's also known that if P = NP, then EXPTIME NEXPTIME, the class of problems solvable in exponential time by a nondeterministic Turing machine.
- It's difficult to find nondeterministic turing machine in a sentence. 用nondeterministic turing machine造句挺難的
- Since any deterministic Turing machine is also a nondeterministic Turing machine, we have that "'L "'is contained in "'NL " '.
- The languages described by these grammars are exactly all 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 input .)
- Several complexity classes are typically defined in terms of a polynomial-time nondeterministic Turing machine, where each branch can either accept or reject, and the entire machine accepts or rejects as some function of the branches'conditions.
- The existence of the Euclidean algorithm places ( the decision problem version of ) the greatest common divisor problem in NL, it is also unknown whether a space-efficient algorithm for computing the GCD exists, even for nondeterministic Turing machines.
- In other words, if a nondeterministic Turing machine can solve a problem using " f " ( " n " ) space, an ordinary deterministic Turing machine can solve the same problem in the square of that space bound.
- An alternative 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 majority ( more than half ) of computation paths accept.
- This is indeed the technique by 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 and appears to dismiss it from further consideration.
- Using a model other than a deterministic Turing machine, there are various generalizations and restrictions of DTIME . For example, if we use a nondeterministic Turing machine, we have the resource NTIME . The relationship between the expressive powers of DTIME and other computational resources are very poorly understood.
- An alternative characterization of "'RP "'that is sometimes easier to use is the set of problems recognizable by nondeterministic Turing machines where the machine accepts if and only if at least some constant fraction of the computation paths, independent of the input size, accept . "'NP "'on the other hand, needs only one accepting path, which could constitute an exponentially small fraction of the paths.