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Oracle machine

In complexity theory and computability theory, an oracle machine is an abstract machine that can query a black box called an oracle, which is able to give an answer to any instance of a certain problem ⁠ R {\displaystyle R} ⁠ in a single operation. The problem ⁠ R {\displaystyle R} ⁠ can be of any complexity class, or it can even be an undecidable…

Applications, Complexity classes of oracle machines & Oracles

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Oracles

Definitions

Complexity classes of oracle machines

Oracles and halting problems

Applications to cryptography

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Oracle machine

Nodes46
Edges45
Triples17
Avg. degree1.96
Density0.043478
Components1

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Oracle machine

Top relations

related to Definitions · 5
Oracle machine → An, Melkebeek, The, There, Turing
related to Oracles · 5
Oracle machine → An, NO, The, Turing, YES
related to Oracles and halting problems · 2
Oracle machine → This, Turing
is a · 1
Oracle machine → abstract machine that can query a black box called an oracle

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Important terminology

oracle problem machine tape complexity displaystyle turing state instance one class machines may set definitions time function halting black box

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Oracle machineis aabstract machine that can query a black box called an oracle0.90text
the halting probleminstance ofor it can even be an undecidable problem0.80text
the one by van Melkebeekinstance ofA definition0.80text
using an oracle tape that may have its own alphabetinstance ofA definition0.80text
is required in generalinstance ofA definition0.80text
Oracle machinerelated to DefinitionsThere0.60section
Oracle machinerelated to DefinitionsTuring0.60section
Oracle machinerelated to DefinitionsThe0.60section
Oracle machinerelated to DefinitionsMelkebeek0.60section
Oracle machinerelated to DefinitionsAn0.60section
Oracle machinerelated to OraclesAn0.60section
Oracle machinerelated to OraclesTuring0.60section

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