Reduction Computability Theory Computational (3 results)

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In computability theory and computational complexity theory, a reduction is a transformation of one problem into another problem. Depending on the transformation used this can be used to define complexity classes on a set of problems. Intuitively, problem A is reducible to problem B if solutions to B exist and give solutions to A whenever A has solutions. Thus, solving A cannot be harder than solving B. We write A B, usually with a subscript on the to indicate the type of reduction being used.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. In computabilitytheory and computational complexity theory, a many-one reduction is areduction which converts instances of one decision problem intoinstances of a second decision problem. Reductions are thus used tomeasure the relative computational difficulty of two problems. Many-onereductions are a special case and a stronger form of Turing reductions.With many-one reductions the oracle can be invoked only once at the endand the answer cannot be modified. Many-one reductions were first usedby Emil Post in 1944. Later Norman Shapiro used the same concept in 1956under the name strong reducibility.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. In computabilitytheory and computational complexity theory, a reduction is atransformation of one problem into another problem. Depending on thetransformation used this can be used to define complexity classes on aset of problems. Intuitively, problem A is reducible to problem B ifsolutions to B exist and give solutions to A whenever A has solutions.Thus, solving A cannot be harder than solving B. We write A ¿m Busually with a subscript on the ¿ to indicate the type of reductionbeing used (m : mapping reduction,p : polynomial reduction).…