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Showing 1-20 of 5,297 results
  1. CPQR-based randomized algorithms for generalized CUR decompositions

    Based on the column pivoted QR decomposition, we propose some randomized algorithms including pass-efficient ones for the generalized CUR...

    Guihua Zhang, Hanyu Li, Yimin Wei in Computational and Applied Mathematics
    Article 28 March 2024
  2. Simpler is better: a comparative study of randomized pivoting algorithms for CUR and interpolative decompositions

    Matrix skeletonizations like the interpolative and CUR decompositions provide a framework for low-rank approximation in which subsets of a given...

    Yijun Dong, Per-Gunnar Martinsson in Advances in Computational Mathematics
    Article 07 August 2023
  3. Randomized Machine Learning Algorithms to Forecast the Evolution of Thermokarst Lakes Area in Permafrost Zones

    Abstract

    Randomized machine learning focuses on problems with considerable uncertainty in data and models. Machine learning algorithms are formulated...

    Yu. A. Dubnov, A. Yu. Popkov, ... Yu. S. Popkov in Automation and Remote Control
    Article 01 January 2023
  4. SVD-based algorithms for fully-connected tensor network decomposition

    The popular fully-connected tensor network (FCTN) decomposition has achieved successful applications in many fields. A standard method to this...

    Mengyu Wang, Hanyu Li in Computational and Applied Mathematics
    Article 03 June 2024
  5. Efficient randomized tensor-based algorithms for function approximation and low-rank kernel interactions

    In this paper, we introduce a method for multivariate function approximation using function evaluations, Chebyshev polynomials, and tensor-based...

    Arvind K. Saibaba, Rachel Minster, Misha E. Kilmer in Advances in Computational Mathematics
    Article 04 October 2022
  6. Randomized rounding algorithms for large scale unsplittable flow problems

    Unsplittable flow problems cover a wide range of telecommunication and transportation problems and their efficient resolution is key to a number of...

    François Lamothe, Emmanuel Rachelson, ... Jean-Baptiste Dupé in Journal of Heuristics
    Article 09 September 2021
  7. Greedy Randomized Adaptive Search Procedure

    Greedy randomized adaptive search procedure (GRASP) is a metaheuristic framework which has been extensively used for solving a wide variety of hard...
    Sergio Pérez-Peló, Jesús Sánchez-Oro, Abraham Duarte in Discrete Diversity and Dispersion Maximization
    Chapter 2023
  8. An Accelerated Block Randomized Kaczmarz Method

    The Kaczmarz method is a kind of row iterative method for solving large-scale linear equations. In this paper, we give a block accelerated randomized...
    Anjie Qiao, Xuezhong Wang, Yimin Wei in Applied Linear Algebra, Probability and Statistics
    Chapter 2023
  9. Practical Sketching Algorithms for Low-Rank Tucker Approximation of Large Tensors

    Low-rank approximation of tensors has been widely used in high-dimensional data analysis. It usually involves singular value decomposition (SVD) of...

    Wandi Dong, Gaohang Yu, ... **aohao Cai in Journal of Scientific Computing
    Article 29 March 2023
  10. Sketch-based multiplicative updating algorithms for symmetric nonnegative tensor factorizations with applications to face image clustering

    Nonnegative tensor factorizations (NTF) have applications in statistics, computer vision, exploratory multi-way data analysis, and blind source...

    Maolin Che, Yimin Wei, Hong Yan in Journal of Global Optimization
    Article 01 March 2024
  11. Randomized Algorithms

    Randomized algorithms Randomized algorithm provide a useful tool for scientific computing. Compared with standard deterministic...
    Chapter 2020
  12. Distributed algorithms, the Lovász Local Lemma, and descriptive combinatorics

    In this paper we consider coloring problems on graphs and other combinatorial structures on standard Borel spaces. Our goal is to obtain sufficient...

    Anton Bernshteyn in Inventiones mathematicae
    Article 19 April 2023
  13. Stochastic Simulation Algorithms for Iterative Solution of the Lamé Equation

    Abstract

    In this paper, iterative stochastic simulation algorithms for the Lamé equation describing the displacements of an isotropic elastic body are...

    I. A. Aksyuk, A. E. Kireeva, ... D. D. Smirnov in Numerical Analysis and Applications
    Article 07 December 2023
  14. A Randomized Algorithm for Tensor Singular Value Decomposition Using an Arbitrary Number of Passes

    Efficient and fast computation of a tensor singular value decomposition (t-SVD) with a few passes over the underlying data tensor is crucial because...

    Salman Ahmadi-Asl, Anh-Huy Phan, Andrzej Cichocki in Journal of Scientific Computing
    Article 13 December 2023
  15. Randomized Kaczmarz Method for Single Particle X-Ray Image Phase Retrieval

    In this chapter, we investigate phase retrieval algorithm for the single-particle X-ray imaging data. We present a variance-reduced randomized...
    Reference work entry 2023
  16. Classification and Applications of Randomized Functional Numerical Algorithms for the Solution of Second-Kind Fredholm Integral Equations

    Systematization of numerical randomized functional algorithms for approximation of solutions to second-kind Fredholm integral equation is performed...

    Article 27 March 2021
  17. Learning-augmented algorithms for online subset sum

    As one of Karp’s 21 NP-complete problems, the subset sum problem, as well as its generalization, has been well studied. Among the rich literature,...

    Chenyang Xu, Guochuan Zhang in Journal of Global Optimization
    Article 13 April 2022
  18. The topology of randomized symmetry-breaking distributed computing

    Studying distributed computing through the lens of algebraic topology has been the source of many significant breakthroughs during the last 2...

    Pierre Fraigniaud, Ran Gelles, Zvi Lotker in Journal of Applied and Computational Topology
    Article 13 November 2023
  19. Actor-Critic Reinforcement Learning Algorithms for Mean Field Games in Continuous Time, State and Action Spaces

    This paper investigates mean field games in continuous time, state and action spaces with an infinite number of agents, where each agent aims to...

    Hong Liang, Zhi** Chen, Kaili **g in Applied Mathematics & Optimization
    Article 20 May 2024
  20. On the properties of the exceptional set for the randomized Euler and Runge-Kutta schemes

    We show that the probability of the exceptional set decays exponentially for a broad class of randomized algorithms approximating solutions of ODEs,...

    Article Open access 22 February 2023
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