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Standard online change point detection (CPD) methods tend to have large false discovery rates as their detections are sensitive to outliers. To overcome this drawback, we propose Greedy Online Change Point Detection (GOCPD), a…

信号处理 · 电气工程与系统科学 2023-08-15 Jou-Hui Ho , Felipe Tobar

Nonsmooth composite optimization with orthogonality constraints has a wide range of applications in statistical learning and data science. However, this problem is challenging due to its nonsmooth objective and computationally expensive…

最优化与控制 · 数学 2026-05-15 Ganzhao Yuan

The coordinate descent method is an effective iterative method for solving large linear least-squares problems. In this paper, for the highly coherent columns case, we construct an effective coordinate descent method which iteratively…

最优化与控制 · 数学 2022-04-20 Li-Li Jin , Hou-Biao Li

We present a novel greedy Gauss-Seidel method for solving large linear least squares problem. This method improves the greedy randomized coordinate descent (GRCD) method proposed recently by Bai and Wu [Bai ZZ, and Wu WT. On greedy…

数值分析 · 数学 2020-04-09 Yanjun Zhang , Hanyu Li

In this paper, we propose a gradient-based block coordinate descent (BCD-G) framework to solve the joint approximate diagonalization of matrices defined on the product of the complex Stiefel manifold and the special linear group. Instead of…

数值分析 · 数学 2023-04-26 Jianze Li , Konstantin Usevich , Pierre Comon

We propose Greedy Topology-Aware Quantum Circuit Partitioning (GTQCP), a novel quantum gate circuit partitioning method which partitions circuits by applying a greedy heuristic to the qubit dependency graph of the circuit. GTQCP is compared…

量子物理 · 物理学 2024-10-07 Joseph Clark , Travis S. Humble , Himanshu Thapliyal

The conjugate gradient (CG) method is an efficient iterative method for solving large-scale strongly convex quadratic programming (QP). In this paper we propose some generalized CG (GCG) methods for solving the $\ell_1$-regularized…

最优化与控制 · 数学 2016-02-15 Zhaosong Lu , Xiaojun Chen

We study the Bipartite Unconstrained 0-1 Quadratic Programming Problem (BQP) which is a relaxation of the Unconstrained 0-1 Quadratic Programming Problem (QP). Applications of the BQP include mining discrete patterns from binary data,…

离散数学 · 计算机科学 2013-07-23 Daniel Karapetyan , Abraham P. Punnen

Parameterized quantum circuits (PQCs) are ubiquitous in the design of hybrid quantum-classical algorithms. In this work, we propose an interpolation-based coordinate descent (ICD) method to address the parameter optimization problem in…

量子物理 · 物理学 2026-01-14 Zhijian Lai , Jiang Hu , Taehee Ko , Jiayuan Wu , Dong An

We study ways to accelerate greedy coordinate descent in theory and in practice, where "accelerate" refers either to $O(1/k^2)$ convergence in theory, in practice, or both. We introduce and study two algorithms: Accelerated Semi-Greedy…

最优化与控制 · 数学 2018-06-08 Haihao Lu , Robert M. Freund , Vahab Mirrokni

Block coordinate descent is a powerful algorithmic template suitable for big data optimization. This template admits a lot of variants including block gradient descent (BGD), which performs gradient descent on a selected block of variables,…

最优化与控制 · 数学 2024-05-28 Liangzu Peng , Wotao Yin

Dual Coordinate Descent (DCD) and Block Dual Coordinate Descent (BDCD) are important iterative methods for solving convex optimization problems. In this work, we develop scalable DCD and BDCD methods for the kernel support vector machines…

分布式、并行与集群计算 · 计算机科学 2024-06-27 Zishan Shao , Aditya Devarakonda

Block coordinate descent (BCD) methods and their variants have been widely used in coping with large-scale nonconstrained optimization problems in many fields such as imaging processing, machine learning, compress sensing and so on. For…

最优化与控制 · 数学 2018-04-04 Daoli Zhu , Lei Zhao

Large-scale L1-regularized loss minimization problems arise in high-dimensional applications such as compressed sensing and high-dimensional supervised learning, including classification and regression problems. High-performance algorithms…

机器学习 · 统计学 2012-12-19 Chad Scherrer , Ambuj Tewari , Mahantesh Halappanavar , David Haglin

The stochastic gradient (SG) method can minimize an objective function composed of a large number of differentiable functions, or solve a stochastic optimization problem, to a moderate accuracy. The block coordinate descent/update (BCD)…

最优化与控制 · 数学 2015-11-23 Yangyang Xu , Wotao Yin

In this work, we first present an adaptive deterministic block coordinate descent method with momentum (mADBCD) to solve the linear least-squares problem, which is based on Polyak's heavy ball method and a new column selection criterion for…

数值分析 · 数学 2024-10-29 Long-Ze Tan , Ming-Yu Deng , Jia-Li Qiu , Xue-Ping Guo

In this article, a globally convergent sequential quadratic programming (SQP) method is developed for multi-objective optimization problems with inequality type constraints. A feasible descent direction is obtained using a linear…

最优化与控制 · 数学 2020-05-20 Md Abu Talhamainuddin Ansary , Geetanjali Panda

The block coordinate descent (BCD) method is widely used for minimizing a continuous function f of several block variables. At each iteration of this method, a single block of variables is optimized, while the remaining variables are held…

最优化与控制 · 数学 2012-09-12 Meisam Razaviyayn , Mingyi Hong , Zhi-Quan Luo

In this paper we present a novel randomized block coordinate descent method for the minimization of a convex composite objective function. The method uses (approximate) partial second-order (curvature) information, so that the algorithm…

最优化与控制 · 数学 2015-05-11 Kimon Fountoulakis , Rachael Tappenden

We present an iterative algorithm for calculating approximate greatest common divisor (GCD) of univariate polynomials with the real or the complex coefficients. For a given pair of polynomials and a degree, our algorithm finds a pair of…

交换代数 · 数学 2016-05-12 Akira Terui