'Accepting state' presentation slideshows

Finite State Machines

Finite State Machines. Chapter 5. Languages and Machines. Regular Languages. Generates. Regular Language. Regular Grammar. Recognizes or Accepts. Finite State Machine. Finite State Machines. An example FSM: a device to solve a problem (dispense drinks);

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Lecture Four: Nondeterministic Finite Automata

Lecture Four: Nondeterministic Finite Automata. Amjad Ali. A DFA has exactly one transition from every state on every symbol in the alphabet. By relaxing this requirement we get a related but more flexible kind of automaton: the nondeterministic finite automaton or NFA.

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Formal Languages Finite Automata

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Pushdown Automata

Pushdown Automata. Chapter 12. Recognizing Context-Free Languages. Two notions of recognition: (1) Say yes or no, just like with FSMs (2) Say yes or no, AND if yes, describe the structure. a + b * c. Just Recognizing.

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Pushdown Automata

Pushdown Automata. Chapter 12. Recognizing Context-Free Languages. Two notions of recognition: (1) Say yes or no, just like with FSMs (2) Say yes or no, AND if yes, describe the structure. a + b * c. Just Recognizing.

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DecSerFlow Towards a Truly Declarative Service Flow Language

DecSerFlow Towards a Truly Declarative Service Flow Language. Invited talk 3rd International Workshop on Web Services and Formal Methods 8 September 2006, Vienna, Austria. Wil van der Aalst & Maja Pesic Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands

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Regular Languages and Regular Grammars

Regular Languages and Regular Grammars. Chapter 3. Regular Languages. Regular Language. Describes. Regular Expression. Accepts. Finite State Machine. Operators on Regular Expressions. In order of precedence:. () Parentheses * Star Closure Concatenation + Union. Example:

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Regular Expressions

Regular Expressions. Chapter 6. Regular Languages. Regular Language. L. Regular Expression. Accepts. Finite State Machine. Regular Expressions. The regular expressions over an alphabet ? are all and only the strings that can be obtained as follows: 1. ? is a regular expression.

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Chapter Two: Finite Automata

Chapter Two: Finite Automata.

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Pushdown Automata

Pushdown Automata. Chapter 12. Recognizing Context-Free Languages. We need a device similar to an FSM except that it needs more power. The insight: Precisely what it needs is a stack, which gives it an unlimited amount of memory with a restricted structure.

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Chapter Five: Nondeterministic Finite Automata

Chapter Five: Nondeterministic Finite Automata. A DFA has exactly one transition from every state on every symbol in the alphabet. By relaxing this requirement we get a related but more flexible kind of automaton: the nondeterministic finite automaton or NFA.

468 views • 30 slides

Information Science 2 -Finite State Automata and Turing Machines-

Information Science 2 -Finite State Automata and Turing Machines-. College of Information Science and Engineering Ritsumeikan University. Autumn : Week 14. Agenda. A Happy New Year to you all Terms and concepts from Week 13 Computation and (abstract) computational devices

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Large Scale External Directed Liveness Checking

Large Scale External Directed Liveness Checking. Stefan Edelkamp Shahid Jabbar Computer Science Department University of Dortmund, Dortmund, Germany. Model Checking. Given A model of a system. A specification property Model Checking Problem: Does the system satisfy the property ?

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CS137: Electronic Design Automation

CS137: Electronic Design Automation. Day 9: May 6, 2002 FSM Equivalence Checking. Today. Sequential Verification DFA equivalence Issues Extracting STG Valid state reduction Incomplete Specification Solutions State PODEM State/path exploration. FYI. PODEM

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Course Overview

Course Overview. PART I: overview material 1 Introduction 2 Language processors (tombstone diagrams, bootstrapping) 3 Architecture of a compiler PART II: inside a compiler 4 Syntax analysis 5 Contextual analysis 6 Runtime organization 7 Code generation PART III: conclusion

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Lexical Analysis

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Converting NFAs to DFAs How a Syntax Analyser is constructed

Converting NFAs to DFAs How a Syntax Analyser is constructed. Converting a nfa to a dfa. Defn: The e -closure of a state is the set of all states, including S itself, that you can get to via e -transitions. The e -closure of state S is denoted:. Converting a nfa to a dfa (Cont.).

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Computability

Computability. Catch up last lecture. Turing machines. Variations Homework: Check out videos. Describe certain TMs. What next?. It wasn't done this way, but, how can we define a machine more powerful than PDA (which was more powerful than FSM)

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Regular Expressions and Regular Languages

Regular Expressions and Regular Languages. Languages of REXs = Regular Languages. Language of REX is regular. Claim 1: For each REX e, there exists an NFA M such that L(e) = L(M) where M has only a single accepting state The start state is not an accepting state

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