Výsledky vyhledávání - Analysis of algorithms and problems complexity

Mandatory Critical Points of 2D Uncertain Scalar Fields Autor Günther, David, Salmon, Joseph, Tierny, Julien

“… The characterization is based on the analysis of the support of the probability density functions (PDF) of the input data. Given two scalar fields representing reliable estimations…”
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Fast and Robust Approximation of Smallest Enclosing Balls in Arbitrary Dimensions Autor Larsson, Thomas, Källberg, Linus

“…In this paper, an algorithm is introduced that computes an arbitrarily fine approximation of the smallest enclosing ball of a point set in any dimension…”
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Energy-aware lot sizing problem: Complexity analysis and exact algorithms Autor Rapine, Christophe, Goisque, Guillaume, Akbalik, Ayse

“…The single-item lot sizing problem under a periodic energy limitation is considered in this paper…”
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Planar Minimization Diagrams via Subdivision with Applications to Anisotropic Voronoi Diagrams Autor Bennett, H., Papadopoulou, E., Yap, C.

“… We describe a subdivision algorithm for computing a clustered ε‐isotopic approximation of the minimization diagram of X…”
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Convergence and Complexity Analysis of a Levenberg–Marquardt Algorithm for Inverse Problems Autor Bergou, El Houcine, Diouane, Youssef, Kungurtsev, Vyacheslav

“…The Levenberg–Marquardt algorithm is one of the most popular algorithms for finding the solution of nonlinear least squares problems…”
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The asymmetric bottleneck traveling salesman problem: Algorithms, complexity and empirical analysis Autor LaRusic, John, Punnen, Abraham P.

“… Various lower bound algorithms are proposed and the relative strengths of each of these bounds are examined using theoretical and experimental analysis. A polynomial time ⌈n/2…”
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New Bounds on the Size of Optimal Meshes Autor Sheehy, Donald R.

“…The theory of optimal size meshes gives a method for analyzing the output size (number of simplices) of a Delaunay refinement mesh in terms of the integral of…”
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NP-hardness of deciding convexity of quartic polynomials and related problems Autor Ahmadi, Amir Ali, Olshevsky, Alex, Parrilo, Pablo A., Tsitsiklis, John N.

“…) 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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Description and Solution of an Unreported Intrinsic Bias in Photon Mapping Density Estimation with Constant Kernel Autor García, R., Ureña, C., Sbert, M.

“…This paper presents an analysis of the irradiance estimator often used in photon mapping algorithms and concludes that the classical approach with a constant kernel overestimates the correct value…”
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Biased initialization in random walk algorithms for k -SAT: a generalization of Schöning's method Autor Ghosh, Subhas Kumar, Vittamsetti, Vijay Monic

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Improved grid map layout by point set matching Autor Eppstein, David, van Kreveld, Marc, Speckmann, Bettina, Staals, Frank

“…Associating the regions of a geographic subdivision with the cells of a grid is a basic operation that is used in various types of maps, like spatially ordered…”
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Cut Query Algorithms with Star Contraction Autor Apers, Simon, Efron, Yuval, Gawrychowski, Pawel, Lee, Troy, Mukhopadhyay, Sagnik, Nanongkai, Danupon

“…We study the complexity of determining the edge connectivity of a simple graph with cut queries. We show…”
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Hardness and approximation for the star p-Hub Routing Cost Problem in metric graphs Autor Yeh, Hao-Ping, Lu, Wei, Chen, Li-Hsuan, Hung, Ling-Ju, Klasing, Ralf, Hsieh, Sun-Yuan

“… minimized. In this paper, we prove that the Starp-Hub Routing Cost Problem is NP-hard. A 3-approximation algorithm running in time O(n2…”
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Nearly Optimal Communication and Query Complexity of Bipartite Matching Autor Blikstad, Joakim, Van Den Brand, Jan, Efron, Yuval, Mukhopadhyay, Sagnik, Nanongkai, Danupon

“…We settle the complexities of the maximum-cardinality bipartite matching problem (BMM…”
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(Re)packing Equal Disks into Rectangle Autor Fomin, Fedor V., Golovach, Petr A., Inamdar, Tanmay, Saurabh, Saket, Zehavi, Meirav

“…The problem of packing of equal disks (or circles) into a rectangle is a fundamental geometric problem…”
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Safety in Multi-Assembly via Paths Appearing in All Path Covers of a DAG Autor Caceres, Manuel, Mumey, Brendan, Husic, Edin, Rizzi, Romeo, Cairo, Massimo, Sahlin, Kristoffer, Tomescu, Alexandru I.

“…A multi-assembly problem asks to reconstruct multiple genomic sequences from mixed reads sequenced from all of…”
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Efficient assembly consensus algorithms for divergent contig sets Autor Chateau, Annie, Davot, Tom, Lafond, Manuel

“… This amounts to orienting and ordering sets of contigs, which can be viewed as an optimization problem where the aim is to find an alignment of two fragmented strings that maximizes an arbitrary…”
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Computational Complexity Analysis of Ant Colony Clustering Algorithms: Application to Student's Grouping Problem Autor Chniter, Malak, Abid, Abir, Kallel, Ilhem, Kanoun, Slim

“…The task of assessing, grouping and arranging data into meaningful groups or clusters based on their similarities/dissimilarities measures known as cluster analysis…”
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Algorithms and Complexity on Indexing Founder Graphs Autor Equi, Massimo, Norri, Tuukka, Alanko, Jarno, Cazaux, Bastien, Tomescu, Alexandru I., Mäkinen, Veli

“…We study the problem of matching a string in a labeled graph. Previous research has shown that unless the Orthogonal Vectors Hypothesis (OVH…”
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Quantum Meets Fine-Grained Complexity: Sublinear Time Quantum Algorithms for String Problems Autor Le Gall, François, Seddighin, Saeed

“…) are three fundamental string problems that can be classically solved in near linear time. In this work, we present sublinear time quantum algorithms for these problems along with quantum lower bounds…”
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