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A state S of the DFA is an accepting state if and only if at least one member of S is an accepting state of the NFA. [2] [3] In the simplest version of the powerset construction, the set of all states of the DFA is the powerset of Q, the set of all possible subsets of Q. However, many states of the resulting DFA may be useless as they may be ...
Therefore, it is possible to convert an existing NFA into a DFA for the purpose of implementing a (perhaps) simpler machine. This can be performed using the powerset construction, which may lead to an exponential rise in the number of necessary states. For a formal proof of the powerset construction, please see the Powerset construction article.
Let be the set of words over the alphabet {a,b} whose nth last letter is an .The figures show a DFA and a UFA accepting this language for n=2.. Deterministic automaton (DFA) for the language L for n=2 Unambiguous finite automaton (UFA) for the language L for n=2
In the theory of computation, a branch of theoretical computer science, a deterministic finite automaton (DFA)—also known as deterministic finite acceptor (DFA), deterministic finite-state machine (DFSM), or deterministic finite-state automaton (DFSA)—is a finite-state machine that accepts or rejects a given string of symbols, by running ...
In computer science theory – particularly formal language theory – Glushkov's construction algorithm, invented by Victor Mikhailovich Glushkov, transforms a given regular expression into an equivalent nondeterministic finite automaton (NFA).
An example that can be used to demonstrate the powerset construction reducing NFAs to equivalent DFAs. The corresponding DFA is Image:DFA-powerset-construction-example.svg. Created by Derrick Coetzee in Adobe Illustrator based on the same source as en:Image:NFA-powerset-construction-example.png, which this replaces. Date
An example that can be used to demonstrate the powerset construction reducing NFAs to equivalent DFAs. The corresponding NFA is Image:NFA-powerset-construction-example.svg. Created by Derrick Coetzee in Adobe Illustrator based on the same source as en:Image:DFA-powerset-construction-example.png, which this replaces. Date
In 2006, the DFA and the Bangko Sentral ng Pilipinas started a five-year passport modernization project designed to issue new Philippine machine-readable passports (MRP). However, an injunction was issued against the project by a lower court, only to be overturned by the Supreme Court and ordering the DFA and the BSP to continue the project.