'Nfa dfa' diaporamas de présentation

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NFAs accept the Regular Languages

NFAs accept the Regular Languages. Equivalence of Machines. Definition: Machine is equivalent to machine if. Example of equivalent machines. NFA. DFA. Theorem:. Languages accepted by NFAs. Regular Languages. Languages accepted by DFAs.

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?????????????? ??????????? NFA ???? M = ? S ??? move ? s0 ? F ? ????????????????? NFA ????????????????? NFA ??????????????? DFA ?? NFA ??????????????? ?? DFA ?????? 2.1 ???????????????. ???????. 2.4 ??????????. ???????????????? ???????????? ?????????? NFA ???????????????

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????? I NFA ? DFA ????

????? I NFA ? DFA ????. ????? ?? ??. ???????. ???????? NFA ? DFA ???? ?????. ????????. ???????????????????????? ??????????????? ???????????????. ?????????. ??????( DFA) ?????( NFA) ? 100??????? ??70?????50??? ?????? ??10????? 30 ??????? ??????????? ??????? ?? ???????? ????????

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CSCI 3130: Automata theory and formal languages

Fall 2011. The Chinese University of Hong Kong. CSCI 3130: Automata theory and formal languages. NFA to DFA conversion and regular expressions. Andrej Bogdanov http://www.cse.cuhk.edu.hk/~andrejb/csc3130. NFAs are as powerful as DFAs. An NFA can do everything a DFA can do

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NFA to DFA Construction

NFA to DFA Construction. 1. 0. 0. 3. 0. 0. 0. 1. 0. 1. 2. 0. 1. 1. NFA. DFA. 0. NFA to DFA Construction. 1. 0. 0. 3. 0. 0. 0. 1. 0. 1. 2. 0. 1. 1. NFA. DFA. 0. 0. NFA to DFA Construction. 13. 1. 0. 0. 3. 0. 0. 0. 1. 0. 1. 2. 0. 1. 1. NFA. DFA.

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Quick Review

tables or code. Quick Review. Previous class: The scanner is the first stage in the front end Specifications can be expressed using regular expressions Build tables and code from a DFA. source code. parts of speech & words. Scanner. specifications. Scanner Generator. Goal.

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Lecture 7 From NFA to DFA

Lecture 7 From NFA to DFA. DFA. For every string x , there is a unique path from initial state and associated with x . x is accepted if and only if this path ends at a final state. x. NFA.

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Lecture 7 From NFA to DFA

Lecture 7 From NFA to DFA. DFA. For every string x , there is a unique path from initial state and associated with x . x is accepted if and only if this path ends at a final state. x. NFA.

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Lexical Analysis Constructing a Scanner from Regular Expressions

Lexical Analysis Constructing a Scanner from Regular Expressions. tables or code. Quick Review. Previous class: The scanner is the first stage in the front end Specifications can be expressed using regular expressions Build tables and code from a DFA. source code. parts of speech & words.

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Lexical Analysis Part 2

Lexical Analysis Part 2. Professor Yihjia Tsai Tamkang University. Regular Expressions and FA are Equivalent. For every regular expression, there is a deterministic finite-state machine that defines the same language, and vice versa. NFA. Regular expressions. DFA. e Closure Operator.

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?????. ???????? - ???????? - DFA A ????????? L(A) - NFA A ???????? L(A) ???? - ?????????? - ???? ? ?????? L(?). ?????. ???????????? DFA) ?????????????? NFA) ??????????????????????? ?????????????????. ????????? ? DFA ? NFA ????. L(A): ?????? A ????? ??????? ???.

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Minimal NFA Problems are hard Tao Jiang & B. Ravikumar

Minimal NFA Problems are hard Tao Jiang & B. Ravikumar. N Andres Parra. Quick Outline. Presentation of the problem Introduction UFA: Unambiguous Finite Automata NP-completeness results. A B. Problem:. Given a FA of type A, find a minimum equivalent FA of type B. DFA DFA.

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NFA->DFA

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Exercise RE->NFA->RG->RE

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