'Regular grammars' presentation slideshows

Reverse of a Regular Language

Reverse of a Regular Language. Proof idea:. Construct NFA that accepts :. invert the transitions of the NFA that accepts. Theorem:. The reverse of a regular language is a regular language. Proof. Since is regular, there is NFA that accepts. Example:.

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Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Elsa L Gunter 2112 SC, UIUC http://www.cs.illinois.edu/class/cs421/. Based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Meta-discourse. Language Syntax and Semantics Syntax - DFSAs and NDFSAs

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Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Dennis Griffith 0207 SC, UIUC http://www.cs.illinois.edu/class/cs421/. Based in part on slides by Mattox Beckman, as updated by Vikram Adve, Gul Agha, and Elsa Gunter. Meta-discourse. Language Syntax and Semantics Syntax

609 views • 53 slides

Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Elsa L Gunter 2112 SC, UIUC http://www.cs.uiuc.edu/class/sp07/cs421/. Based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Meta-discourse. Language Syntax and Semantics Syntax - DFSAs and NDFSAs

534 views • 45 slides

Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Grigore Rosu 2110 SC, UIUC http://courses.engr.illinois.edu/cs421. Slides by Elsa Gunter, based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Where We Are Going.

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Natural Language Technology for Business Intelligence Horacio Saggion & Adam Funk

Natural Language Technology for Business Intelligence Horacio Saggion & Adam Funk. Human Language Technology in Business Intelligence. Business Intelligence (BI) is the process of finding, gathering, aggregating, and analysing information for decision making

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Programming Languages and Compilers (CS 421)

Programming Languages and Compilers (CS 421). Elsa L Gunter 2112 SC, UIUC http://courses.engr.illinois.edu/cs421. Based in part on slides by Mattox Beckman, as updated by Vikram Adve and Gul Agha. Lexing and Parsing. Converting strings to abstract syntax trees done in two phases

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Erik Jonsson School of Engineering and Computer Science

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So far ...

So far. A language is a set of strings over an alphabet. Languages serve two purposes in computing: (a) communicating instructions or information (b) defining valid communications. We have defined languages by: (i) regular expressions (ii) finite state automata.

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LING 388: Language and Computers

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Constructing an Equivalent Regular Grammar from a Regular Expression

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Language translation

Language translation. Programming Language Design and Implementation (4th Edition) by T. Pratt and M. Zelkowitz Prentice Hall, 2001 Sections 3.1 - 3.3.1. Program structure. Syntax What a program looks like BNF (John Bacus and Peter Naur) context free grammars)

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LING/C SC/PSYC 438/538 Computational Linguistics

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Theory of Computation

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Natural Language and Speech Processing

Natural Language and Speech Processing. Creation of computational models of the understanding and the generation of natural language. Different fields coming together, looking at speech and language processing from different perspectives. Computational Linguistics (Linguistics)

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LING 388: Language and Computers

LING 388: Language and Computers. Sandiway Fong Lecture 8: 9/20. Administrivia. LING 388 Homework #2 handed out today submit homework by email sandiway@email.arizona.edu due date is one week from now Monday September 27th (by midnight) Next time Back in classroom.

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Programming Languages 2nd edition Tucker and Noonan

Programming Languages 2nd edition Tucker and Noonan. Chapter 3 Lexical and Syntactic Analysis Syntactic sugar causes cancer of the semicolon. A. Perlis. Contents. 3.1 Chomsky Hierarchy 3.2 Lexical Analysis 3.3 Syntactic Analysis. 3.1 Chomsky Hierarchy.

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Regular Grammars

Regular Grammars. Right-linear Grammar. A grammar G=(V,T,S,P) is right-linear if all productions are of the form A -> xB, or A -> x where A,B ? V, and x ? T*. Language of RL Grammar. Claim: For all right-linear grammars G, L(G) is regular Proof by construction. A RL Grammar for a RL.

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Context Free Grammars and Regular Grammars

Context Free Grammars and Regular Grammars. Needs for CFG Grammars and Production Rules Context Free Grammars (CFG) Regular Grammars (RG). Needs for CFG. Regular expressions were inadequate to define all interesting languages and therefore we need more powerful language defining structure.

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