Probabilistic turing machine - PowerPoint PPT Presentation

CS21 Decidability and Tractability

CS21 Decidability and Tractability. Lecture 25 March 11 , 2019. Outline. challenges to the extended Church-Turing Thesis randomized computation quantum computation. Extended Church-Turing Thesis. the belief that TMs formalize our intuitive notion of an efficient algorithm is:

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Randomized Algorithms

Jan 12, WSAC 2010. Randomized Algorithms. Kyomin Jung KAIST Applied Algorithm Lab. Randomness in Algorithms. A Probabilistic Turing Machine is a TM given with a (binary) random “coin”. In the computation process of the PTM, PTM can toss a coin to decide its decision.

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Approximation Algorithms

ADVANCED TOPICS IN COMPLEXITY THEORY. Approximation Algorithms. Pages 365 - 367. Optimization problems. Optimization problems - seek the best solution among a collection of possible solutions. Example: shortest path connecting two nodes

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