'Regular grammar' presentation slideshows

Chapter 1

Chapter 1. Language Processor. Introduction. Semantic gap Solve by PL Design and coding PL implementation steps Introduced new PL Domain Specification Gap: Semantic gap between two specification of same task. Execution Gap: Gap between the semantics of the program

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??? ???????

??? ???????. ??? ?? wkchen@pchome.com.tw ??????. ???? ????? ????? ?????? B.N.F. ?? ???. ??????? ?? else ?? ??????????? ????? ????. ??. ????. ??? ?????????????? ? ?????? ASCII Code Set EBCDIC Code Set. ascii table. ????. ASCII Code Set

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Linear Grammars

Linear Grammars. Grammars with at most one variable at the right side of a production Examples:. A Non-Linear Grammar. Grammar :. Number of in string. Another Linear Grammar. Grammar : . Right-Linear Grammars. All productions have form: Example:. or. string of

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Linear Grammars

Linear Grammars. Grammars with at most one variable at the right side of a production Examples:. A Non-Linear Grammar. Grammar :. Number of in string. Another Linear Grammar. Grammar : . Right-Linear Grammars. All productions have form: Example:. or. string of

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Normal forms for Context-Free Grammars

Normal forms for Context-Free Grammars. Context-Free Grammar. In linguistics and computer science, a context-free grammar (CFG) is a formal grammar in which every production rule is of the form V ? w

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Datatypes in XML

Datatypes in XML. Jeni Tennison www.jenitennison.com jeni@jenitennison.com. Overview. Context: DSDL Part 5 What is data in XML? Why do we need to type data? validation, documentation, authoring support, application support What kinds of data do we use?

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Finite state automaton (FSA)

Finite state automaton (FSA). LING 570 Fei Xia Week 3: 10/8/2007. TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A A A. Hw1. Need to test your code on patas Windows carriage return vs. unix newline Your machine could yield different results

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Context-Free Languages

Context-Free Languages. The class of context-free languages generalizes the class of regular languages, i.e., every regular language is a context-free language.

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Context-Free Grammars

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Increasing the Use of JFLAP in Courses

Increasing the Use of JFLAP in Courses. Susan H. Rodger Duke University Durham, NC USA rodger@cs.duke.edu Program Visualization Workshop June 30, 2011. NSF Grants CCLI-0442513 and TUES-1044191. Co-Authors. Henry Qin Jonathan Su.

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Context-free Grammars

Context-free Grammars. Recursive definition Grammar Derivation. What is the syntax of the description (meta-language)? External form of the grammar How do we associate a language with such a description? Semantics or use of the grammar

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CSE467/567 Computational Linguistics

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Constructing an Equivalent Regular Grammar from a Regular Expression

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Syntax Analysis - Parsing

Syntax Analysis - Parsing. 66.648 Compiler Design Lecture (01/28/98) Computer Science Rensselaer Polytechnic. Lecture Outline. Syntax Analysis and Context Free Grammars Bottom-up Parsing Administration. Syntax Analysis.

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Regular Expression

Regular Expression.

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Context Free Languages

Context Free Languages. Lecture 13 Naveen Zehra Quazilbash. Overview. Some elementary questions about languages Context-free Grammars Left-most and right-most derivations. Elementary questions about languages. Given a string w and language L, determine whether w ? L.

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Lecture 11 Context-Free Grammar

Lecture 11 Context-Free Grammar. Definition. A context-free grammar (CFG) G is a quadruple (V, ? , R, S) where V : a set of non-terminal symbols ? : a set of terminals ( V ? ? = ? ) R : a set of rules ( R: V ? (V U ? )* ) S : a start symbol. Example. V = {q, f,} ? = {0, 1}

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Chapter 4 Context-Free Grammars

Chapter 4 Context-Free Grammars. 4.1 Grammars and Regular Grammars. For natural languages, each has its own grammar. A Chinese sentence follows Chinese language grammar. An English sentence follows its own grammar.

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aaba

. . . . aaba. acba. aaba. M. G. Models of Language Recognition . Models of Language Generation. What is it about?. Language: The words, their pronunciation, and the methods of combining them used and understood by a community.

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Regular Grammars

Regular Grammars. What is a regular grammar. The Regular Grammars are either left of right:. Right Regular Grammars: Rules of the forms A ? ? A ? a A ? aB A,B: variables and a: terminal. Left Regular Grammars: Rules of the forms A ? ? A ? a A ? Ba A,B: variables and

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