A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Questions about relationships between complexity classes.
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Questions related to the (computational) complexity of solving problems
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Questions related to computability theory, a.k.a. recursion theory
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computability and complexity in real or complex analysis
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Questions about algorithmic solutions of geometric problems, or other algorithms making usage of geometry.
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The definition of the set of allowable operations used for computation and their respective costs. Some examples of models include Turing machines, recursive functions, lambda calculus, and production…
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Questions about the organization and design of computer hardware.
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Questions about problems that arise when you connect multiple computers to form a network.
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Questions about algorithms for processing and analyzing images and videos.
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Questiont about issues of concurrency such as synchronization and deadlocks.
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a complement of NP, i.e. decision problems where the "no" instances can be accepted by a nondeterministic Turing machine that runs in time polynomial in the…
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A fundamental problem in distributed computing and multi-agent systems is to achieve overall system reliability in the presence of a number of faulty processes. use this tag for consensus kind of prob…
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Questions about the set of languages (equivalently) described by context-free grammars or accepted by (non-deterministic) pushdown automata.
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an interactive theorem prover based on the Calculus of Inductive Constructions.
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Questions that ask for or about correctness proofs of algorithms.
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usually used to refer counting objects in certain arrangements or with certain properties.
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A fast memory limited in space close to the CPU. A cache is designed to reduce the average time to access memory.