Suchergebnisse - 68Q25: Analysis of algorithms AND problem complexity
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NP-hardness of deciding convexity of quartic polynomials and related problems
ISSN: 0025-5610, 1436-4646Veröffentlicht: Berlin/Heidelberg Springer-Verlag 01.02.2013Veröffentlicht in Mathematical programming (01.02.2013)“… ) is globally convex. This solves a problem that has been open since 1992 when N. Z. Shor asked for the complexity of deciding convexity for quartic polynomials …”
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(Re)packing Equal Disks into Rectangle
ISSN: 0179-5376, 1432-0444Veröffentlicht: New York Springer US 01.12.2024Veröffentlicht in Discrete & computational geometry (01.12.2024)“… The problem of packing of equal disks (or circles) into a rectangle is a fundamental geometric problem …”
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Worst-case complexity of an SQP method for nonlinear equality constrained stochastic optimization
ISSN: 0025-5610, 1436-4646Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2024Veröffentlicht in Mathematical programming (01.05.2024)“… ) algorithm that has been designed for solving optimization problems involving a stochastic objective function and deterministic nonlinear equality constraints …”
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HODLR3D: hierarchical matrices for N-body problems in three dimensions
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.12.2024Veröffentlicht in Numerical algorithms (01.12.2024)“… This article introduces HODLR3D, a class of hierarchical matrices arising out of N -body problems in three dimensions …”
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Complexity of a projected Newton-CG method for optimization with bounds
ISSN: 0025-5610, 1436-4646Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2024Veröffentlicht in Mathematical programming (01.09.2024)“… This paper describes a method for solving smooth nonconvex minimization problems subject to bound constraints with good worst-case complexity guarantees and practical performance …”
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A Lower Bound on the Complexity of Testing Grained Distributions
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2023Veröffentlicht in Computational complexity (01.12.2023)“… For a natural number m , a distribution is called m -grained, if each element appears with probability that is an integer multiple of 1 / m . We prove that, …”
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A Complexity Trichotomy for k-Regular Asymmetric Spin Systems Using Number Theory
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.06.2023Veröffentlicht in Computational complexity (01.06.2023)“… cannot be both rational multiples of π. We use this number theoretic result to prove a classification of the computational complexity of spin systems on k -regular graphs with general …”
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Diverse collections in matroids and graphs
ISSN: 0025-5610, 1436-4646Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2024Veröffentlicht in Mathematical programming (01.03.2024)“… We investigate the parameterized complexity of finding diverse sets of solutions to three fundamental combinatorial problems …”
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On a Hierarchy of Spectral Isomorphism Invariants
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2025Veröffentlicht in Computational complexity (01.12.2025)“… with the 2-dimensional Weisfeiler-Leman algorithm, extending the recent work of Rattan and Seppelt (SODA 2023). As another application of the characterization, we prove that almost …”
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A cost-scaling algorithm for computing the degree of determinants
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2022Veröffentlicht in Computational complexity (01.12.2022)“… for t . This problem generalizes noncommutative Edmonds' problem and fundamental combinatorial optimization problems including the weighted linear matroid intersection problem …”
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Absolute reconstruction for sums of powers of linear forms: degree 3 and beyond
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2023Veröffentlicht in Computational complexity (01.12.2023)“… We give a randomised algorithm for the following problem: If a homogeneous polynomial f ∈ K [ x 1 , . . . , x n ] (where K ⊆ C …”
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The Power of Natural Properties as Oracles
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2023Veröffentlicht in Computational complexity (01.12.2023)“… ) or its special case, the Minimal Circuit Size Problem (MCSP). We show that in a number of complexity-theoretic results that use the SAT oracle, one can use the MCSP oracle instead …”
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Subquadratic-Time Algorithms for Normal Bases
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.06.2021Veröffentlicht in Computational complexity (01.06.2021)“… forms an F-basis of K. Such an α is called a normal element , and G · α is a normal basis . We introduce a probabilistic algorithm for testing whether a given …”
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A deterministic algorithm for the discrete logarithm problem in a semigroup
ISSN: 1862-2984, 1862-2976, 1862-2984Veröffentlicht: Berlin De Gruyter 01.07.2022Veröffentlicht in Journal of mathematical cryptology (01.07.2022)“… The best general algorithms which solve this problem have a time complexity of and a space complexity of , where is the order of the group …”
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Low rank matrix completion by alternating steepest descent methods
ISSN: 1063-5203, 1096-603XVeröffentlicht: Elsevier Inc 01.03.2016Veröffentlicht in Applied and computational harmonic analysis (01.03.2016)“… In this paper, we introduce an alternating steepest descent algorithm (ASD) and a scaled variant, ScaledASD, for the fixed-rank matrix completion problem …”
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Zeros and approximations of Holant polynomials on the complex plane
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2022Veröffentlicht in Computational complexity (01.12.2022)“… small external field) and approximation algorithms for general Holant problems with small signature weights …”
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Rigid continuation paths II. structured polynomial systems
ISSN: 2050-5086, 2050-5086Veröffentlicht: Cambridge, UK Cambridge University Press 01.01.2023Veröffentlicht in Forum of Mathematics, Pi (01.01.2023)“… This work studies the average complexity of solving structured polynomial systems that are characterised by a low evaluation cost, as opposed to the dense random model previously used …”
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On semiring complexity of Schur polynomials
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.12.2018Veröffentlicht in Computational complexity (01.12.2018)“… Semiring complexity is the version of arithmetic circuit complexity that allows only two operations …”
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Euclidean TSP in Narrow Strips
ISSN: 0179-5376, 1432-0444Veröffentlicht: New York Springer US 01.06.2024Veröffentlicht in Discrete & computational geometry (01.06.2024)“… We investigate how the complexity of Euclidean TSP for point sets P inside the strip ( - ∞ , + ∞ ) × [ 0 , δ …”
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Lower Bounds and PIT for Non-commutative Arithmetic Circuits with Restricted Parse Trees
ISSN: 1016-3328, 1420-8954Veröffentlicht: Cham Springer International Publishing 01.09.2019Veröffentlicht in Computational complexity (01.09.2019)“… . [Electronic Colloquium on Comput Complexity (ECCC) vol 23, no 94, 2016 ], who prove such a result …”
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