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.

Type to find tags:
× 1655
P versus NP and other resource-bounded computation.
× 1191
Questions regarding well-defined instructions for completing a task, and relevant analysis in terms of time/memory/etc.
× 865
used when the author needs to know about work related to the question.
× 805
the study of graphs, mathematical structures used to model pairwise relations between objects.
× 535
Algorithms on graphs, excluding heuristics.
× 446
Questions related to combinatorics and discrete mathematical structures
× 311
Questions related to NP-hardness and NP-completeness.
× 300
Computational complexity classes and their relations
× 297
Computational and mathematical logic.
× 245
a question (possibly subjective) about the field of theoretical computer science as opposed to being a question in theoretical computer science.
× 242
formal languages, grammars, automata theory
× 233
Programming languages, in particular, focussing on their semantics.
× 231
Questions about approximation algorithms.
× 225
Properties and applications of data structures, such as space lower bounds, or time complexity of insertion and deletion of objects.
× 223
the study of geometric problems from a computational perspective. Examples of problems include: computation of geometric objects such as convex hulls, dimensionality reductio…
× 221
Computability theory a.k.a. recursion theory.
× 209
general questions about selecting a best element from some set of available alternatives.
× 204
Theoretical aspects of cryptography and information security.
× 203
Quantum computation and computational issues related to quantum mechanics
× 185
Automata Theory, including abstract machines, grammars, parsing, grammatical inference, transducers, and finite-state techniques
× 160
the study of resource-bounded circuits and the functions computed by such circuits.
× 155
Time complexity of decision problems or relations among time-bounded complexity classes. (Use [tag:analysis-of-algorithms] for the time taken by particular algorithms.)
× 154
SAT stands for the Boolean satisfiability problem.
× 149
Theoretical questions about Machine learning, especially Computational Learning Theory, including Algorithmic Learning Theory, PAC learning, and Bayesian Inference
× 130
counting the number of solutions?
× 118
questions about lowerbounds on functions, usually the complexity of an algorithm or a problem
× 116
a big list of items (books, theorems, software, ...)
× 106
for a "broad, overall view or perspective of an issue or problem."
× 106
Questions in probability theory
× 105
Linear algebra deals with vector spaces and linear transformations.
× 103
a syntactic discipline for enforcing levels of abstraction.
× 102
a fundamental model of computation, especially in theoretical work.
× 101
Mathematical and computational method for finding the best outcome in a given mathematical model where the list of requirements is represented as linear relationships.
× 93
Questions in Information Theory
× 92
a key component of probabilistic algorithms, many combinatorial aarguments, the analysis of hashing functions, and in cryptography, among other applications.
× 91
Machine learning and learning theory: PAC learning, algorithmic learning theory, and computational aspects of Bayesian inference and graphical models.