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:
× 1706
P versus NP and other resource-bounded computation.
× 1212
Questions regarding well-defined instructions for completing a task, and relevant analysis in terms of time/memory/etc.
× 894
used when the author needs to know about work related to the question.
× 848
the study of graphs, mathematical structures used to model pairwise relations between objects.
× 558
Algorithms on graphs, excluding heuristics.
× 456
Questions related to combinatorics and discrete mathematical structures
× 321
Questions related to NP-hardness and NP-completeness.
× 305
Computational and mathematical logic.
× 304
Computational complexity classes and their relations
× 253
a question (possibly subjective) about the field of theoretical computer science as opposed to being a question in theoretical computer science.
× 245
formal languages, grammars, automata theory
× 242
Questions about approximation algorithms.
× 235
Programming languages, in particular, focussing on their semantics.
× 231
Properties and applications of data structures, such as space lower bounds, or time complexity of insertion and deletion of objects.
× 229
the study of geometric problems from a computational perspective. Examples of problems include: computation of geometric objects such as convex hulls, dimensionality reductio…
× 227
Computability theory a.k.a. recursion theory.
× 214
general questions about selecting a best element from some set of available alternatives.
× 208
Theoretical aspects of cryptography and information security.
× 206
Quantum computation and computational issues related to quantum mechanics
× 192
Automata Theory, including abstract machines, grammars, parsing, grammatical inference, transducers, and finite-state techniques
× 172
the study of resource-bounded circuits and the functions computed by such circuits.
× 167
Time complexity of decision problems or relations among time-bounded complexity classes. (Use [tag:analysis-of-algorithms] for the time taken by particular algorithms.)
× 158
SAT stands for the Boolean satisfiability problem.
× 151
Theoretical questions about Machine learning, especially Computational Learning Theory, including Algorithmic Learning Theory, PAC learning, and Bayesian Inference
× 133
counting the number of solutions?
× 129
questions about lowerbounds on functions, usually the complexity of an algorithm or a problem
× 120
a big list of items (books, theorems, software, ...)
× 111
a syntactic discipline for enforcing levels of abstraction.
× 109
Linear algebra deals with vector spaces and linear transformations.
× 108
for a "broad, overall view or perspective of an issue or problem."
× 108
a fundamental model of computation, especially in theoretical work.
× 107
Questions in probability theory
× 102
Mathematical and computational method for finding the best outcome in a given mathematical model where the list of requirements is represented as linear relationships.
× 96
Questions about Boolean functions and their analysis
× 96
a key component of probabilistic algorithms, many combinatorial aarguments, the analysis of hashing functions, and in cryptography, among other applications.
× 95
Questions in Information Theory