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This paper addresses the challenging computational problem of estimating intractable expectations over discrete domains. Existing approaches, including Monte Carlo and Russian Roulette estimators, are consistent but often require a large…

机器学习 · 统计学 2025-12-19 Sophia Seulkee Kang , François-Xavier Briol , Toni Karvonen , Zonghao Chen

A method for object classification that is based on distribution analysis is proposed. In addition, a method for finding relevant features and the unification of this algorithm with another classification algorithm is proposed. The…

机器学习 · 计算机科学 2021-11-09 Thomas Olschewski

We present a new step-size strategy based on the secant method for Frank-Wolfe algorithms. This strategy, which requires mild assumptions about the function under consideration, can be applied to any Frank-Wolfe algorithm. It is as…

最优化与控制 · 数学 2025-06-11 Deborah Hendrych , Mathieu Besançon , David Martínez-Rubio , Sebastian Pokutta

In this paper a sublinear time algorithm is presented for the reconstruction of functions that can be represented by just few out of a potentially large candidate set of Fourier basis functions in high spatial dimensions, a so-called…

数值分析 · 数学 2020-06-24 Lutz Kämmerer , Felix Krahmer , Toni Volkmer

The set-based concept approach has been suggested as a means to simultaneously explore different design concepts, which are meaningful sub-sets of the entire set of solutions. Previous efforts concerning the suggested approach focused on…

人工智能 · 计算机科学 2017-07-05 Eliran Farhi , Amiram Moshaiov

This paper is concerned with developing a novel distributed Kalman filtering algorithm over wireless sensor networks based on randomized consensus strategy. Compared with the centralized algorithm, distributed filtering techniques require…

系统与控制 · 计算机科学 2018-10-08 Jiahu Qin , Jie Wang , Ling Shi , Yu Kang

This paper addresses the challenges of real-time, large-scale, and near-optimal multi-agent pathfinding (MAPF) through enhancements to the recently proposed LaCAM* algorithm. LaCAM* is a scalable search-based algorithm that guarantees the…

人工智能 · 计算机科学 2024-01-23 Keisuke Okumura

Randomized algorithms are overwhelming methods for low-rank approximation that can alleviate the computational expenditure with great reliability compared to deterministic algorithms. A crucial thought is generating a standard Gaussian…

统计计算 · 统计学 2025-06-05 Dandan Jiang , Bo Fu , Weiwei Xu

In this work, we examine sampling problems with non-smooth potentials. We propose a novel Markov chain Monte Carlo algorithm for sampling from non-smooth potentials. We provide a non-asymptotical analysis of our algorithm and establish a…

机器学习 · 计算机科学 2022-02-11 Jiaming Liang , Yongxin Chen

To deploy deep learning algorithms on resource-limited scenarios, an emerging device-resistive random access memory (ReRAM) has been regarded as promising via analog computing. However, the practicability of ReRAM is primarily limited due…

机器学习 · 计算机科学 2022-10-06 Nanyang Ye , Jingbiao Mei , Zhicheng Fang , Yuwen Zhang , Ziqing Zhang , Huaying Wu , Xiaoyao Liang

We propose an extended forward-backward algorithm for approximating a zero of a maximal monotone operator which can be split as the extended sum of two maximal monotone operators. We establish the weak convergence in average of the sequence…

最优化与控制 · 数学 2013-06-25 Marc Lassonde , Ludovic Nagesseur

In this paper, we extend our analysis of lattice systems using the wavelet transform to systems for which exact enumeration is impractical. For such systems, we illustrate a wavelet-accelerated Monte Carlo (WAMC) algorithm, which…

化学物理 · 物理学 2009-11-07 Ahmed E. Ismail , George Stephanopoulos , Gregory C. Rutledge

Let $P$ be a set of $n$ points in $\mathbb{R}^2$. For a given positive integer $w<n$, our objective is to find a set $C \subset P$ of points, such that $CH(P\setminus C)$ has the smallest number of vertices and $C$ has at most $n-w$ points.…

计算几何 · 计算机科学 2021-03-03 Vahideh Keikha

We analyze a sublinear RAlSFA (Randomized Algorithm for Sparse Fourier Analysis) that finds a near-optimal B-term Sparse Representation R for a given discrete signal S of length N, in time and space poly(B,log(N)), following the approach…

数值分析 · 数学 2007-05-23 Jing Zou , Anna Gilbert , Martin Strauss , Ingrid Daubechies

To effectively retrieve objects from large corpus with high accuracy is a challenge task. In this paper, we propose a method that propagates visual feature level similarities on a Markov random field (MRF) to obtain a high level…

计算机视觉与模式识别 · 计算机科学 2013-12-30 Peng Lu , Xujun Peng , Xinshan Zhu , Xiaojie Wang

We consider the dynamic range minimum problem on the ultra-wide word RAM model of computation. This model extends the classic $w$-bit word RAM model with special ultrawords of length $w^2$ bits that support standard arithmetic and boolean…

数据结构与算法 · 计算机科学 2025-03-10 Philip Bille , Inge Li Gørtz , Tord Stordalen , Máximo Pérez López

We consider global optimization problems, where the feasible region $\X$ is a compact subset of $\mathbb{R}^d$ with $d \geq 10$. For these problems, we demonstrate the following. First: the actual convergence of global random search…

最优化与控制 · 数学 2023-02-27 Jack Noonan , Anatoly Zhigljavsky

The majority of machine learning methods and algorithms give high priority to prediction performance which may not always correspond to the priority of the users. In many cases, practitioners and researchers in different fields, going from…

In this paper we propose a new fast Fourier transform to recover a real nonnegative signal ${\bf x}$ from its discrete Fourier transform. If the signal ${\mathbf x}$ appears to have a short support, i.e., vanishes outside a support interval…

数值分析 · 数学 2020-02-19 Gerlind Plonka , Katrin Wannenwetsch

This paper examines the problem of locating outlier columns in a large, otherwise low-rank matrix, in settings where {}{the data} are noisy, or where the overall matrix has missing elements. We propose a randomized two-step inference…

信息论 · 计算机科学 2016-12-12 Xingguo Li , Jarvis Haupt