'Pspace' diaporamas de présentation

New Surprises from Self-Reducibility

801 views • 61 slides

CS21 Decidability and Tractability

1.09k views • 52 slides

CS151 Complexity Theory

1.01k views • 38 slides

357 views • 20 slides

Polynomial-Time Hierarchy

Polynomial-Time Hierarchy. 1. Stockmeyer 2. Wrathall. Definitions. Let A ? + and B ? + for finite alphabets ? and ? . A transforms to B within logspace via f (A B via f) iff f is a transformation, f: ? + ? ? + , such that f ? logspace and x ? A?f(x) ? B for all x ? ? +.

147 views • 12 slides

Alternating Turing Machine (ATM) ? node is marked accept iff any of its children is marked accept .

Alternation and Polynomial Time Hierarchy. Alternating Turing Machine (ATM) ? node is marked accept iff any of its children is marked accept . ? node is marked accept iff all of its children are marked accept . ?.

379 views • 10 slides

Complexity of STRIPS SHAKEY the Robot

222 views • 10 slides