U2-4 RE TO NFA.pptx - The Regular Language The regular language defined by an NFA is the set of input strings it accepts Example(ab*abb for the example

U2-4 RE TO NFA.pptx - The Regular Language The regular...

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Slide 1 The Regular Language The regular language defined by an NFA is the set of input strings it accepts. Example: (a b)*abb for the example NFA An NFA accepts an input string x if and only if there is some path with edges labeled with symbols from x in sequence from the start state to some accepting state in the transition graph A state transition from one state to another on the path is called a move.
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Slide 2 Theorem The followings are equivalent Regular Expression NFA DFA Regular Language Regular Grammar
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Slide 3 Convert Concept Regular Expression Nondeterministic Finite Automata Deterministic Finite Automata Minimization Deterministic Finite Automata
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Slide 4 Construction of an NFA from a Regular Expression Use Thompson s Construction s | t N ( s ) N ( t ) s t N ( s ) N ( t ) s * N ( s ) a a ε
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Slide 5 Example ( a | b )* a b b r 11 r 8 r 10 r 7 r 9 r 6 r 5 * r 4 a b b ( r 3 ) r 2 r 1 a b | r 3 = r 4
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Slide 6 0 start a 1 10 2 b b a b 3 4 5 6 7 8 9 ( a | b )* a b b Example
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  • Winter '17
  • sathya raja shekaran

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