slike bài giảng môn automata and formal language

Automata and Formal Language

... v ngụn ng hỡnh thc. H Vn Quõn ã An introduction to formal languages and automata. Peter Linz ã Introduction to automata theory, languages, and computation. John Hopcroft & Jeffrey Ullman ... configuration Generated Language G = (V, T, S, P) L(G) = {w∈T* | S * w} ã Example 1.8: Take into consideration the grammar given in Example 1.6: L(G) = {a n b n | n ≥ 0} Automata a...

Ngày tải lên : 13/05/2014, 10:21

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Automata and Formal language docx

... Ab A → aAb A → λ 3 Formal Languages & Automata A formal language:  Is an abstraction of the general characteristics of programming languages.  Consists of a set of symbols and some formation ... trên. 15 Languages  Language concatenation: L1L2 = {xy | x∈L1, y∈L2} L n = L L L (n times) L 0 = {λ} 13 Languages  Language: a subset L of Σ *  Word or Sentence: a string i...

Ngày tải lên : 11/07/2014, 19:20

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Automata and Formal Language (chapter 1) pot

... v ngụn ng hỡnh thc. H Vn Quõn ã An introduction to formal languages and automata. Peter Linz ã Introduction to automata theory, languages, and computation. John Hopcroft & Jeffrey Ullman ... Language (contd) ã Language: a subset L of * ã Sentence: a string in L ã Example 1.3: In Example 1.2, L is a language on Σ, w is a string of Σ but not a sentence in L Formal Gramma...

Ngày tải lên : 14/07/2014, 02:20

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Automata and Formal Language (chapter 3) ppt

... the form: A → xB A → x A, B ∈ V and x ∈ T * Theorem 3.4 L is a regular language iff there exists a regular grammar G such that L = L(G). Regular Language and Regular Grammar Example 3.3 r ... Recalled ã Formal grammar: G = (V, T, S, P) V: finite set of variables T: finite set of terminal symbols S∈V: start variable P: finite set of productions Equivalent Regular Expression r...

Ngày tải lên : 14/07/2014, 02:20

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Automata and Formal Language (chapter 4) pdf

... L 1 and L 2 are regular, then so are L 1 ∩L 2 , L 1 ∪L 2 , L 1 L 2 , L 1 , L 1 *. (The family of regular languages is closed under intersection, union, concatenation, complement, and ... y) ∈ F and y ∈ L 2 q 1 q 2 b b Questions about RL 2. Is there an algorithm to determine whether or not a regular language is empty, finite, or infinite?. Yes. Right Quotient Let L 1 and...

Ngày tải lên : 14/07/2014, 02:20

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Automata and Formal Language (chapter 6) ppt

... (contd) Proof: ã Draw the variable dependency graph for G 1 and find all variables that cannot be reached from S. ã Remove those variables and the productions involving them. ã Eliminate any terminal ... V 1 . ã Reduce the length of the right sides of the productions: 1. Put all productions A → a and A → BC into P^. 2. Repeat until no more productions are added to P^: For each p...

Ngày tải lên : 14/07/2014, 02:20

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Automata and Formal Language (chapter 7) pot

... erase A and move to q k if receiving a and at q j erase BC and move to q k At q i erase A and move to q k if receiving a and at q j erase B and move to q m and at q m erase C and move ... A and move to q k if receiving a and at q j erase B and move to q m and at q m erase C and move to q k (q i Aq k ) → a(q j Bq m )(q m Cq k ) 2 Pushdown Automata ã There...

Ngày tải lên : 14/07/2014, 02:20

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slike bài giảng môn công nghệ web services

... tử Công nghệ Web services Tháng 11-2006 Khoa Công nghệ thông tin Bộ môn HTTT 11/200 6Môn: Chuyên đề TMĐT – Bộ môn HTTT 2 Nội dung trình bày Các ứng dụng phân tán Kiến trúc hướng dịch vụ Web ... dùng 2 2 System System.Data System .Web System .Web. Webservices System.Xml System System.Data System .Web System .Web. Webservices System.Xml Các thành phần Các thành phần 3 3 F...

Ngày tải lên : 23/10/2014, 17:23

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slike bài giảng môn chương trình dịch chương 1 tổng quan

... gian tmp 1 = i2f(60) tmp 2 = id 2 * tmp 1 tmp 3 = id 1 + tmp 2 id 1 = tmp 3 Ti u mã trung gian tmp 2 = id 2 * 60.0 id 1 = id 1 + tmp 2 Sinh mã máy MOVF id 2 , R2 MULF #60.0, R2 MOVF id 1 , R1 ADDF ... tích t vng id 1 = id 1 + id 2 * intliteral Phân tích cú pháp = id 1 + id 1 * id 2 intliteral 60 acc real … inc real … … 1 2 X lý ng ngha Khoa CNTT - DHBK Gii Thi...