Results 11 to 20 of about 2,095,948 (338)

Approximation Algorithms [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
Increasing global competition, rapidly changing markets, and greater consumer awareness have altered the way in which corporations do business.
Andreas S. Schulz   +2 more
semanticscholar   +3 more sources

Variational inequations and approximation [PDF]

open access: yes, 1974
The existence and uniqueness of the solution of a variational inequality is considered, and methods of approximation of the solution are given.
Noor, MA
core   +6 more sources

Algorithms and error bounds for multivariate piecewise constant approximation [PDF]

open access: yes, 2010
We review the surprisingly rich theory of approximation of functions of many vari- ables by piecewise constants. This covers for example the Sobolev-Poincar´e inequalities, parts of the theory of nonlinear approximation, Haar wavelets and tree ...
Oleg Davydov, Davydov, Oleg
core   +4 more sources

Approximate approximation on a quantum annealer [PDF]

open access: yesProceedings of the 17th ACM International Conference on Computing Frontiers, 2020
Many problems of industrial interest are NP-complete, and quickly exhaust resources of computational devices with increasing input sizes. Quantum annealers (QA) are physical devices that aim at this class of problems by exploiting quantum mechanical properties of nature.
Irmi Sax   +5 more
openaire   +3 more sources

An Approximation Algorithm for Approximation Rank [PDF]

open access: yes2009 24th Annual IEEE Conference on Computational Complexity, 2009
One of the strongest techniques available for showing lower bounds on quantum communication complexity is the logarithm of the approximation rank of the communication matrix--the minimum rank of a matrix which is entrywise close to the communication matrix.
Troy Lee, Adi Shraibman
openaire   +4 more sources

An approximation method using approximate approximations [PDF]

open access: yesApplicable Analysis, 2006
The aim of this article is to extend the method of approximate approximations to boundary value problems. This method was introduced by V. Maz'ya in 1991 and has been used until now for the approximation of smooth functions defined on the whole space and for the approximation of volume potentials.
Frank Müller, Werner Varnhorn
openaire   +1 more source

Approximate polymorphisms

open access: yesProceedings of the 54th Annual ACM SIGACT Symposium on Theory of Computing, 2022
For a function $g\colon\{0,1\}^m\to\{0,1\}$, a function $f\colon \{0,1\}^n\to\{0,1\}$ is called a $g$-polymorphism if their actions commute: $f(g(\mathsf{row}_1(Z)),\ldots,g(\mathsf{row}_n(Z))) = g(f(\mathsf{col}_1(Z)),\ldots,f(\mathsf{col}_m(Z)))$ for all $Z\in\{0,1\}^{n\times m}$.
Chase, Gilad   +4 more
openaire   +4 more sources

Approximating Approximate Pattern Matching

open access: yesCoRR, 2018
ISSN:1868 ...
Jan Studený, Przemyslaw Uznanski
openaire   +5 more sources

Approximate Clustering without the Approximation [PDF]

open access: yesProceedings of the Twentieth Annual ACM-SIAM Symposium on Discrete Algorithms, 2009
Approximation algorithms for clustering points in metric spaces is a flourishing area of research, with much research effort spent on getting a better understanding of the approximation guarantees possible for many objective functions such as k-median, k-means, and min-sum clustering. This quest for better approximation algorithms is further fueled by
Maria-Florina Balcan   +2 more
openaire   +2 more sources

Generalized Gradient Approximation Made Simple.

open access: yesPhysical Review Letters, 1996
Generalized gradient approximations (GGA’s) for the exchange-correlation energy improve upon the local spin density (LSD) description of atoms, molecules, and solids.
J. Perdew, K. Burke, M. Ernzerhof
semanticscholar   +1 more source

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