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Query complexity in computational complexity describes the number of queries needed to solve a computational problem for an input that can be accessed
Query_complexity
In descriptive complexity, a query is a mapping from structures of one signature to structures of another vocabulary. Neil Immerman, in his book Descriptive
Query_(complexity)
Topics referred to by the same term
between JavaScript and HTML Jeff Query (born 1967), an American football player Nate Query, a musician Query (complexity), a mapping from structures of
Query
Computational complexity of quantum algorithms
Quantum complexity theory is the subfield of computational complexity theory that deals with complexity classes defined using quantum computers, a computational
Quantum_complexity_theory
Determining the answers to a query on a database
the computational complexity of answering different kinds of queries over databases, in particular over relational databases. The query evaluation problem
Query_evaluation
Type of error-correcting code
query complexity 2 is exponential in the size of the original message. However, there are no known tight lower bounds for codes with query complexity
Locally_decodable_code
Problem in quantum information science
then gate complexity matters more than query complexity. If the Hamiltonian is described as an Oracle (black box) then the number of queries to the oracle
Hamiltonian_simulation
Proof checkable by a randomized algorithm
Probabilistically checkable proofs give rise to many complexity classes depending on the number of queries required and the amount of randomness used. The
Probabilistically checkable proof
Probabilistically_checkable_proof
Topic in computer science
algorithm for a decision problem is an algorithm whose query complexity (the number of queries made to its input) is much smaller than the instance size
Property_testing
Model of computational complexity
its decision tree complexity or query complexity. Decision tree models are instrumental in establishing lower bounds for the complexity of certain classes
Decision_tree_model
Problem in computer science
exponential number of queries. This problem yields an oracle separation between the complexity classes BPP (bounded-error classical query complexity) and BQP (bounded-error
Simon's_problem
Computing the fixed point of a function
via evaluation queries: for any x {\displaystyle x} , the algorithm can evaluate f ( x ) {\displaystyle f(x)} . The run-time complexity of an algorithm
Fixed-point_computation
two queries, via divide and choose. With n > 2 {\displaystyle n>2} agents, there are several open problems regarding the number of required queries. 1
List of unsolved problems in fair division
List_of_unsolved_problems_in_fair_division
Unsolved problem on graph query complexity
the Las Vegas query complexity of graph properties. Quantum query complexity is the natural generalization of randomized query complexity, of course allowing
Aanderaa–Karp–Rosenberg conjecture
Aanderaa–Karp–Rosenberg_conjecture
Quantum search algorithm
1996. The analogous problem in classical computation would have a query complexity O ( N ) {\displaystyle O(N)} (i.e., the function would have to be evaluated
Grover's_algorithm
Algorithm to be run on quantum computers
classical query complexity is Θ ( N 2 ) {\displaystyle \Theta (N^{2})} , since for a graph with only one triangle this is the query complexity needed to
Quantum_algorithm
Model of computation used by algorithms
shows an exponential gap in the query complexity. Equitable cake-cutting cannot be done using finitely-many RW queries even for 2 agents. Moreover, for
Robertson–Webb_query_model
Computer science metric for string similarity
(unconditional) lower bound on the complexity of this problem is Ω ( m n ) {\displaystyle \Omega (mn)} in a model where the only query on symbols of the strings
Levenshtein_distance
Query language for object-oriented databases
overall complexity the complete OQL standard has not yet been fully implemented in any software. The OQL standard influenced the design of later query languages
Object_Query_Language
Fair cake-cutting procedure
most n mark queries, and each of the other agents at most n eval queries. There are at most n iterations. Therefore, the total number of queries in the Robertson-Webb
Lone_divider
Type of database query
queries are NP-complete with respect to combined complexity, while the data complexity of conjunctive queries is very low, in the parallel complexity
Conjunctive_query
Complexity of sending information in a distributed algorithm
was pioneered in the context of communication complexity by Raz and McKenzie, who proved the first query-to-communication lifting theorem, and used the
Communication_complexity
Problem in theoretical computer science
conjecture on the query complexity of monotone graph properties, Gröger (1992) showed that any subgraph isomorphism problem has query complexity Ω(n3/2); that is
Subgraph_isomorphism_problem
IT architecture separating actions and reads
command-query separation. Here is a simple example that does not follow CQS, but is useful for multi-threaded software because it solves the complexity of
Command–query_separation
Subfield of convex optimization
the optimization of complex systems. In recent years, some quantum query complexity problems have been formulated in terms of semidefinite programs. A
Semidefinite_programming
Branch of mathematical logic
of queries expressible in it. The queries – when restricted to finite structures – correspond to the computational problems of traditional complexity theory
Descriptive_complexity_theory
Database using graph structures for queries
The equivalent SQL query would have to rely on added data in the table linking people and movies, adding more complexity to the query syntax. These sorts
Graph_database
System that provides database services specifically for arrays
expressions of arbitrary complexity can be built on top of a set of core array operations. Due to the extensions made in the data and query model, Array DBMSs
Array_DBMS
Estimate of time taken for running an algorithm
the time complexity is the computational complexity that describes the amount of computer time it takes to run an algorithm. Time complexity is commonly
Time_complexity
to query it. At the center of this discussion is the semantic gap between users and databases, which becomes more central as the scale and complexity of
Schema-agnostic_databases
Change of basis applied in quantum computing
Waltrous, John (8 November 2002). "Sharp Quantum versus Classical Query Complexity Separations". Algorithmica. 34 (4): 449–461. doi:10.1007/s00453-002-0978-1
Quantum_Fourier_transform
Complexity class (logarithmic space)
application to database query languages: data complexity of a query is defined as the complexity of answering a fixed query considering the data size
L_(complexity)
Theorem in computational complexity theory
checked by a randomized algorithm) of constant query complexity and logarithmic randomness complexity (uses a logarithmic number of random bits). The
PCP_theorem
involved are quite artificial. An example from Quantum complexity theory (related to Quantum query complexity) is given in. Fellows, M. R.; Langston, M. A. (1988)
Non-constructive algorithm existence proofs
Non-constructive_algorithm_existence_proofs
Process for fairly dividing resources
\uparrow 6} queries. There is still a very large gap between the lower bound and the procedure. As of October 2024, the exact run-time complexity of envy-freeness
Envy-free_cake-cutting
Abstract machine used to study decision problems
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
Oracle_machine
Theorem about complexity measures of Boolean functions
{\displaystyle D(f)} is the deterministic query complexity and Q ( f ) {\displaystyle Q(f)} is the quantum query complexity. Dafni et al. extended the notions
Sensitivity_theorem
Data structure used for indexing spatial information
tree, inspired by the concept of balancing a B-tree. Worst case query and delete complexity are thus identical to the R-Tree. The insertion strategy to the
R*-tree
Relational database programming language
Structured Query Language (SQL) (pronounced /ˌɛsˌkjuˈɛl/ S-Q-L; or alternatively as /ˈsiːkwəl/ "sequel") is a domain-specific language used to manage
SQL
Quantum benchmarking protocol
S2CID 204836822. Aaronson, S. (2021). "Open Problems Related to Quantum Query Complexity". arXiv:2109.06917 [quant-ph]. Liu, X.; et al. (2021). "Redefining
Cross-entropy_benchmarking
Computational problem of graph theory
Heiligman, Mark; Høyer, Peter; Mhalla, Mehdi (January 2006). "Quantum query complexity of some graph problems". SIAM Journal on Computing. 35 (6): 1310–1328
Shortest_path_problem
Optimization problem in computer science
in the query, neighboring branches that might contain hits may also need to be evaluated. For constant dimension query time, average complexity is O(log N)
Nearest_neighbor_search
Israeli computer scientist and businessman
Eli; Sudan, Madhu (2005-05-22). "Simple PCPS with poly-log rate and query complexity". Proceedings of the thirty-seventh annual ACM symposium on Theory
Eli_Ben-Sasson
Very general problem in computer science
arXiv:cs/0304005. Mark Ettinger; Peter Hoyer; Emanuel Knill (2004). "The quantum query complexity of the hidden subgroup problem is polynomial". Information Processing
Hidden_subgroup_problem
Branch of computer science
efficiently tells which object a query ray intersects first. If the search space is fixed, the computational complexity for this class of problems is usually
Computational_geometry
Information technology system architecture
complexity has introduced significant challenges related to scalability, maintainability, and runtime performance. Implementations of Command Query Responsibility
Command Query Responsibility Segregation
Command_Query_Responsibility_Segregation
Data structure for storing non-overlapping sets
asymptotically optimal time complexity. One family of algorithms, known as path compression, makes every node between the query node and the root point to
Disjoint-set_data_structure
Research institute in Singapore
areas include: Quantum algorithm, Quantum network Communication complexity, Query complexity Interactive proofs, Zero-knowledge proofs, and Quantum games
Centre for Quantum Technologies
Centre_for_Quantum_Technologies
Feature to efficiently execute queries efficiently in DBMS softwares
execute a given query by considering the possible query plans. Generally, the query optimizer cannot be accessed directly by users: once queries are submitted
Query_optimization
Latvian computer scientist
mostly through his work on quantum walks and lower bounds for quantum query complexity. In 1991 he received a perfect score and gold medal at the International
Andris_Ambainis
Concept in computer science
In computational complexity theory, a branch of computer science, bounded-error probabilistic polynomial time (BPP) is the class of decision problems solvable
BPP_(complexity)
Mathematical theory
H. (1997) "A survey of inductive inference with an emphasis on queries". Complexity, logic, and recursion theory, Lecture Notes in Pure and Appl. Math
Solomonoff's theory of inductive inference
Solomonoff's_theory_of_inductive_inference
Algorithm for modelling sequential data
q_{i}=x_{i,{\text{query}}}W^{Q}} . The matrix of all query vectors is the query matrix: Q = X query W Q {\displaystyle Q=X_{\text{query}}W^{Q}} Similarly
Transformer_(deep_learning)
Open-source library for pattern matching in text
Polylogarithmic approximation for edit distance and the asymmetric query complexity. IEEE Symp. Foundations of Computer Science (FOCS). arXiv:1005.4033
TRE_(computing)
Type of fair division
queries so the query complexity is O(n2), similarly to Last Diminisher. It is possible to use randomization in order to reduce the number of queries.
Proportional_cake-cutting
Data warehousing schema
(for example, extremely large dimensions) because it adds complexity for users and can hurt query performance. Star schemas align well with multidimensional/OLAP
Star_schema
Unsolved problem in computer science
could be automated. The relation between the complexity classes P and NP is studied in computational complexity theory, the part of the theory of computation
P_versus_NP_problem
Unsolved problem in computational complexity theory
checkable proof with query complexity 2, where for each pair of possible queries of the verifier and each possible answer to the first query, there is exactly
Unique_games_conjecture
System to identify resources on a network
Indicates if the message is a query (0) or a reply (1). OPCODE: 4 bits The type can be QUERY (standard query, 0), IQUERY (inverse query, 1), or STATUS (server
Domain_Name_System
Graph without triples of adjacent vertices
rather than vice versa. The decision tree complexity or query complexity of the problem, where the queries are to an oracle which stores the adjacency
Triangle-free_graph
Computer query in SQL
a SQL database query, a correlated subquery (also known as a synchronized subquery) is a subquery (a query nested inside another query) that uses values
Correlated_subquery
Interactive proof system in computational complexity theory
polynomially bounded. The complexity class AM[k] is the set of problems that can be decided in polynomial time, with k queries and responses. AM as defined
Arthur–Merlin_protocol
Concept in natural language processing
less straightforward, or sometimes even unfeasible, depending on the query complexity. Moreover, entity linking has been used to improve the performance
Entity_linking
Type of fair division
S2CID 9834718. Brânzei, Simina; Nisan, Noam (2018-07-13). "The Query Complexity of Cake Cutting". arXiv:1705.02946 [cs.GT]. Cechlárová, Katarína; Pillárová
Equitable_cake-cutting
In computational complexity theory, a language B (or a complexity class B) is said to be low for a complexity class A (with some reasonable relativized
Low_(complexity)
Declarative logic programming language
significantly different behavior and properties from Prolog. It is often used as a query language for deductive databases. Datalog has been applied to problems in
Datalog
Experimental technology level
Bernstein-Vazirani problem, where quantum advantage requires only logarithmic query complexity. For quantum state learning problems, NISQ devices face exponential
Noisy intermediate-scale quantum computing
Noisy_intermediate-scale_quantum_computing
Professor of computer science
the theory of computational complexity to the study of inductive inference" was one of the first works to apply complexity theory to the field of inductive
Dana_Angluin
Retrieval system algorithm
should be denoted as relevant or irrelevant. Therefore, the user's search query is revised to include an arbitrary percentage of relevant and irrelevant
Rocchio_algorithm
Measure of how many transactions a system can process per second
volumes is an important area of research for cryptocurrency technology. Queries per second Titov, Valery; Uandykova, Mafura; Litvishko, Oleg; Kalmykova
Transactions_per_second
Statistical procedure of testing by group
If no bounds are known, there are non-adaptive algorithms with low query complexity that can help estimate d {\displaystyle d} . Combinatorial Orthogonal
Group_testing
Digital database whose organization is based on the relational model of data
systems are equipped with the option of using SQL (Structured Query Language) for querying and updating the database. The concept of relational database
Relational_database
Ordered tree data structure
given query. In 1990, Bernard Chazelle improved this to query time O ( log d − 1 n + k ) {\displaystyle O(\log ^{d-1}n+k)} and space complexity O ( n
Range_tree
code rule over C# LINQ query (CQLinq). Software Metrics (NDepend currently supports more than 100 code metrics: Cyclomatic complexity; Afferent and Efferent
NDepend
Algorithm that employs a degree of randomness as part of its logic or procedure
without relying on any complexity-theoretic assumptions, assuming the convex body can be queried only as a black box. A more complexity-theoretic example of
Randomized_algorithm
Density-based data clustering algorithm
with an estimated runtime complexity of O(n³). DBSCAN has a worst-case complexity of O(n²). The database-oriented range-query formulation of DBSCAN allows
DBSCAN
Combining data from multiple sources
the source schemas. The complexity of adding the new source moves from the designer to the query processor. The theory of query processing in data integration
Data_integration
Class of problems solvable in polynomial time
In computational complexity theory, P, also known as PTIME or DTIME(nO(1)), is a fundamental complexity class. It contains all decision problems that can
P_(complexity)
Mathematical model describing how an output of a function is computed given an input
science, and more specifically in computability theory and computational complexity theory, a model of computation is a model that describes how an output
Model_of_computation
Study of database design and use
among other areas, the foundations of query languages, computational complexity and expressive power of queries, finite model theory, database design
Database_theory
In applied mathematics, a technique to find the shortest path
shortcuts in a preprocessing phase which are then used during a shortest-path query to skip over "unimportant" vertices. This is based on the observation that
Contraction_hierarchies
Type of error-correcting code
{\displaystyle c\in (0,1)} These have both been achieved, even with constant query complexity and a binary alphabet, such as with n = k 1 + 1 / ( log k ) c {\displaystyle
Locally_testable_code
LINQ query (CQLinq) JArchitect can tell you what has been changed between 2 builds The tool proposes live code query and code rule through LINQ query. This
JArchitect
Two-player number-guessing game
Glazik, Christian; Sauerland, Volkmar; Srivastav, Anand (2016). "On the Query Complexity of Black-Peg AB-Mastermind". arXiv:1611.05907 [cs.DS]. AB website implementation
AB_(game)
Static analysis tool for C/C++ code
Eclipse Support Java Support The tool proposes live code query and code rule through LINQ query. This is one of the innovations of CppDepend. For example:
Cppdepend
Cryptographic model of a random function
mapping each possible query to a (fixed) random response from its output domain. Random oracles first appeared in the context of complexity theory, in which
Random_oracle
Bioinformatics search algorithm
protein search) is as follows: Remove low-complexity region or sequence repeats in the query sequence. "Low-complexity region" means a region of a sequence
BLAST_(biotechnology)
Query returning true/false based on whether a conjunction of conditions holds
relational databases, a Boolean conjunctive query is a conjunctive query without distinguished predicates, i.e., a query in the form R 1 ( t 1 ) ∧ ⋯ ∧ R n ( t
Boolean_conjunctive_query
Branch of logic
of queries expressible in it. The queries – when restricted to finite structures – correspond to the computational problems of traditional complexity theory
Finite_model_theory
Logical arrangement of computing tables in a multidimensional database
the added complexity. More joins required. While normalization reduces redundancy, it typically increases the number of joins needed at query time. The
Snowflake_schema
Cached summaries to speed up queries
complex. To make this extra complexity transparent to the user, functionality known as aggregate navigation is used to query the dimensional and fact tables
Aggregate_(data_warehouse)
Database stored query result set
and complexity (for example it is not necessary to read the address, since the parent invocation does not make use of it) and then sends the query to the
View_(SQL)
to as a full conjunctive query or a join query or a conjunctive query with no existential quantifiers), then the complexity of the algorithm is O ( |
Yannakakis_algorithm
Machine learning strategy
case of machine learning in which a learning algorithm can interactively query a human user (or some other information source) to label new data points
Active learning (machine learning)
Active_learning_(machine_learning)
Data structure
as a collection of files with non-overlapping key ranges. To perform a query on a particular key to get its associated value, one must search in the
Log-structured_merge-tree
Complexity class
Continuous Local Search: Query Complexity and Cryptographic Lower Bounds. SODA 2016. Goldberg and Papadimitriou. Towards a Unified Complexity Theory of Total Functions
TFNP
Cloud-based NoSQL document database service
Datastore Query Language) is a query language just like SQL and it is designed to interact with Google Cloud Datastore. GQL allows users to query the Datastore
Google_Cloud_Datastore
query filters (hereafter, AMQ filters) comprise a group of space-efficient probabilistic data structures that support approximate membership queries.
Approximate membership query filter
Approximate_membership_query_filter
computational geometry, the bin is a data structure that allows efficient region queries. Each time a data point falls into a bin, the frequency of that bin is
Bin_(computational_geometry)
is an approach to software security that focuses on input handling, complexity, and program design as strategies to improve the verifiability of computer
Language-Theoretic_Security
QUERY COMPLEXITY
QUERY COMPLEXITY
Surname or Lastname
English, Scottish, and French
English, Scottish, and French : status name for a young servant,
Middle English and Old French page (from Italian paggio,
ultimately from Greek paidion, diminutive of pais ‘boy’,
‘child’). The surname is also common in Ireland (especially Ulster and
eastern Galway), having been established there since the 16th century.North German : metonymic occupational name for
a horse dealer, from Middle Low German page ‘horse’.(Pagé) : North American form of French Paget.A Pagé, also known as Carsy, Quercy, and
Girl/Female
Gujarati, Indian, Kannada
Njn
QUERY COMPLEXITY
QUERY COMPLEXITY
Girl/Female
Hindu, Indian
Beautiful
Boy/Male
Arthurian Legend
Father of Isolde.
Girl/Female
Hindu, Indian
Lustrious
Boy/Male
Sikh
World protector
Boy/Male
Tamil
Pundit
Girl/Female
Indian
Oath or Promise
Surname or Lastname
English
English : habitational name from any of various places so named, as for example Henwood in Cornwall, in Linkinhorne parish, which is named from Old English henn ‘hen’, ‘wild bird’ + wudu ‘wood’, or Hen Wood in Wootton, Oxfordshire (formerly in Berkshire), which is named from Old English hīwan ‘religious community’ (genitive plural hīgna) + wudu.
Boy/Male
Hindu, Indian
Intelligence
Boy/Male
Polish
Gift from God.
Girl/Female
Indian, Modern
Bright
QUERY COMPLEXITY
QUERY COMPLEXITY
QUERY COMPLEXITY
QUERY COMPLEXITY
QUERY COMPLEXITY
n.
A mill for grinding grain, the upper stone of which was turned by hand; -- used before the invention of windmills and watermills.
n.
That which is asked; inquiry; interrogatory; query.
v. t.
To address questions to; to examine by questions.
n.
A groom; an equerry.
n.
A hand mill. See Quern.
v. t.
To write " query" (qu., qy., or ?) against, as a doubtful spelling, or sense, in a proof. See Quaere.
v. i.
To ask questions; to make inquiry.
v. t.
To put questions about; to elicit by questioning; to inquire into; as, to query the items or the amount; to query the motive or the fact.
v. i.
To have a doubt; as, I query if he is right.
v. t.
To twirl; to turn or wind round; to coil; as, to querl a cord, thread, or rope.
p. pr. & vb. n.
of Query
n.
A question; an inquiry to be answered or solved.
n. & v.
See Querl.
v. t.
To doubt of; to be uncertain of; to query.
v. t.
Earnest inquiry; question; query.
v. t.
To doubt of; to regard with incredulity.
n.
An interrogation point [?] as the sign of a question or a doubt.
imp. & p. p.
of Query
n.
A question in the mind; a doubt; as, I have a query about his sincerity.
pl.
of Query