Upload File

pushdown automata (pda) - srividyaengg.ac.in · unit iii-push down automata pushdown automata (pda)...

  • Home
  • Documents
  • Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars
27
Sri vidya college of engineering and technology coursematerial(lecture notes) Cs6503 Theory of computation unit III UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars. Context free languages are recognized using pushdown automata. Following diagram shows a pushdown automation. The PDA has three components: An input tape,A control mechanism, and A stack. From the input tape, the finite control reads the input, and also the finite control reads a symbol from the stack top.

Upload: vuongnguyet

Post on 09-May-2019

296 views

Category:

Documents


1 download

Report

TRANSCRIPT

Page 1: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

UNIT III-PUSH DOWN AUTOMATA

Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars. Context free languages are recognized using pushdown automata. Following diagram shows a pushdown automation.

The PDA has three components: An input tape,A control mechanism, and A stack. From the input tape, the finite control reads the input, and also the finite control reads a symbol from the stack top.

Page 2: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 3: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 4: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 5: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 6: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 7: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 8: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 9: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 10: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 11: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 12: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 13: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 14: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 15: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 16: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 17: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 18: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 19: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 20: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 21: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 22: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 23: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 24: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 25: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 26: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III

Page 27: Pushdown Automata (PDA) - srividyaengg.ac.in · UNIT III-PUSH DOWN AUTOMATA Pushdown Automata (PDA) As we learned, context free languages are generated using context free grammars

Sri vidya college of engineering and technology coursematerial(lecture notes)

Cs6503 Theory of computation unit III


Chapter 6 Pushdown automata

Definition Moves of the PDA Languages of the PDA Deterministic PDA’s Pushdown Automata 11

MUZAFFARPUR INSTITUTE OF TECHNOLOGY, …...5 Pushdown Automata 5.1 Pushdown automata (PDA) 2 5.2 The language of PDA 1 5.3 Equivalence of PDA’s and CFG’s, 2 5.4 Deterministic pushdown

1 Pushdown Automata - pdfs.semanticscholar.org · 1 Pushdown Automata? HendrikJanHoogeboomandJoostEngelfriet InstituteforAdvancedComputerScience, UniversiteitLeiden,theNetherlands

Pushdown Automata (PDA) Intro MA/CSSE 474 Theory of Computation

Pushdown Automata (PDA)

Pushdown Automata - cs.unc.eduotternes/comp455/6-pushdown-automata.pdf · Pushdown Automata (PDAs) A pushdown automaton (PDA) is essentially a finite automaton with a stack. Example

Lecture Pushdown Automata

PUSHDOWN AUTOMATA (PDA) - contrib.andrew.cmu.eduokahn/flac-s15/lectures/Lecture6.pdf · PUSHDOWN AUTOMATA (PDA) FINITE STATE CONTROL STACK (Last in, first out) INPUT

Chapter 7 Pushdown Automata

Regulated Pushdown Automata

Pushdown Automata - cs.rit.edurlc/Courses/Theory/ClassNotes/PushdownAutomata.pdf · Pushdown Automata • We can think of a PDA as an ε-NFA with the added power of being able to

Pushdown Automata A pushdown automata (PDA) is essentially an

Pushdown Automaton -- PDA - Colorado State Universitymassey/Teaching/cs301/RestrictedAccess/Slides/... · 1 CS 301 - Lecture 11 Nondeterministic Pushdown Automata Fall 2008 Review

Pushdown Automata (PDA)

Pushdown Automata (PDA) - Swarthmore Collegesindhu/cs46/s16/PDADesign.pdf · Pushdown Automata (PDA) If the input symbol is a and the top stack symbol is x then q1 to q2, pop x, push

Pushdown Automata-Materi 8

1 Pushdown Automata - Leiden Universityliacs.leidenuniv.nl/~hoogeboomhj/praatjes/pda.pdf · 1 Pushdown Automata? HendrikJanHoogeboomandJoostEngelfriet InstituteforAdvancedComputerScience,

MODEL CHECKING PROBABILISTIC PUSHDOWN AUTOMATA · PDF filemodel checking probabilistic pushdown automata ... (ppda) and properties ... model checking probabilistic pushdown automata

Pushdown Automata. Pushdown Automata (PDA) Just as a DFA is a way to implement a regular expression, a pushdown automata is a way to implement a context

Pushdown Automata - CSE 211 (Theory of Computation)teacher.buet.ac.bd/atif/courses/pda_6.pdf · Pushdown Automata CSE 211 (Theory of Computation) ... pushdown automata recognize all

Prof. Busch - LSU1 Pushdown Automata PDAs. Prof. Busch - LSU2 Pushdown Automaton -- PDA Input String Stack States

Collapsible Pushdown Automata and Recursion Schemeshague/files/papers/lics08b-long.pdf · 1 Introduction Higher-order pushdown automata(PDA) were first introduced by Maslov [17,

MELJUN CORTES Automata Lecture Pushdown Automata 1

More Applications - CSUmassey/Teaching/cs301/Restricted...– Nondeterministic Pushdown Automata – Pushdown Automata and Context Free Grammars – Deterministic Pushdown Automata

Pushdown Automata PDAs

Pushdown Automata and Parser - uni-saarland.decompilers.cs.uni-saarland.de/teaching/cc/2011/slides/04_pda.pdf · Pushdown Automata and Parser Pushdown Automata Memory unboundedly

7. Pushdown Automata

Pushdown Automata (PDA) - merascu.github.io · 1 Pushdown Automata (PDA) The structureandthecontent of thelectureisbasedon ananth/CptS317/Lectures/index.htm

Pushdown Automata - web.cs.hacettepe.edu.trilyas/Courses/BIL... · Pushdown Automata -Example Example: Let's consider with the grammar P 0P0, P 1P1, P •A PDA for Lwwr has tree states,

1 Chomsky Hierarchy of Languages & Pushdown Automata (PDA) Lecture # 6-7 Muhammad Ahmad Jan

Pushdown automata

Costas Busch - RPI1 Pushdown Automata PDAs. Costas Busch - RPI2 Pushdown Automaton -- PDA Input String Stack States

MELJUN CORTES Automata Lecture Pushdown Automata 2