'Unrestricted grammars' diaporamas de présentation

A Hierarchy of Formal Languages and Automata

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Lexical and Syntactic Analysis

CS 345. Lexical and Syntactic Analysis. Vitaly Shmatikov. Reading Assignment. Mitchell, Chapters 4.1 C Reference Manual, Chapters 2 and 7. Syntax. Syntax of a programming language is a precise description of all grammatically correct programs

603 views • 39 slides

Unrestricted Grammars

Unrestricted Grammars. Chapter 23. Grammars, SD Languages, and Turing Machines. SD Language. L. Grammar. Accepts. Turing Machine. Unrestricted Grammars. An unrestricted , or type 0 , or phrase structure grammar G is a quadruple ( V , ? , R , S ), where:

915 views • 30 slides

Transformational Grammars and PROSITE Patterns

Transformational Grammars and PROSITE Patterns. Roland Miezianko CIS 595 - Bioinformatics Prof. Vucetic. Agenda. Transformational Grammars Definition The Chomsky Hierarchy Finite State Automata FMR-1 Triplet Repeat Region Regular Grammar Example PROSITE Patterns in Regular Grammar Form.

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Transformational grammars

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Transformational grammars

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The Chomsky Hierarchy

The Chomsky Hierarchy. Chomsky Hierarchy. Type-0 grammars (unrestricted grammars) include all formal grammars. Type-1 grammars ( context-sensitive grammars ) generate the context-sensitive languages . . The chomsky hierarchy.

1.27k views • 17 slides

Language and Complexity

Language and Complexity. Read J & M Chapter 13. What Do We Mean by Complexity?. Informal: How hard is it to analyze and solve the problem? Formal: What is the average/best case/worst case running time of the best known algorithm to solve the problem?

410 views • 16 slides

Chapter 10

Chapter 10. The Chomsky Hierarchy. Grammars Languages & Accepting Machines. Grammars Languages Accepting Machines Type 3 grammars: Regular DFA Regular grammars , languages NDFA Left-linear grammars, Right-linear grammars

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Chapter 10

Chapter 10. The Chomsky Hierarchy. Grammars Languages & Accepting Machines. Grammars Languages Accepting Machines Type 3 grammars: Regular DFA Regular grammars , languages NDFA Left-linear grammars, Right-linear grammars

48 views • 4 slides