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We study quasi-Monte Carlo (QMC) integration over the multi-dimensional unit cube in several weighted function spaces with different smoothness classes. We consider approximating the integral of a function by the median of several integral…

数值分析 · 数学 2024-02-20 Takashi Goda , Kosuke Suzuki , Makoto Matsumoto

Quasi-Monte Carlo rules are equal weight quadrature rules defined over the domain $[0,1]^s$. Here we introduce quasi-Monte Carlo type rules for numerical integration of functions defined on $\mathbb{R}^s$. These rules are obtained by way of…

数值分析 · 数学 2010-11-12 Josef Dick

Quasi-Monte Carlo (QMC) methods are being adopted in statistical applications due to the increasingly challenging nature of numerical integrals that are now routinely encountered. For integrands with $d$-dimensions and derivatives of order…

统计计算 · 统计学 2016-04-04 Chris. J. Oates , Mark Girolami

Quasi-Monte Carlo (QMC) quadrature rules using higher order digital nets and sequences have been shown to achieve the almost optimal rate of convergence of the worst-case error in Sobolev spaces of arbitrary fixed smoothness $\alpha\in…

数值分析 · 数学 2019-12-09 Takashi Goda , Kosuke Suzuki , Takehito Yoshiki

We study equal weight numerical integration, or Quasi Monte Carlo (QMC) rules, for functions in a Sobolev space $H^s(S^d)$ with smoothness parameter $s>d/2$ defined over the unit sphere $S^d$ in $R^{d+1}$. Focusing on $N$-point sets that…

数值分析 · 数学 2015-12-24 Johann S. Brauchart , Edward B. Saff , Ian H. Sloan , Rob S. Womersley

We investigate quasi-Monte Carlo rules for the numerical integration of multivariate periodic functions from Besov spaces $S^r_{p,q}B(\mathbb{T}^d)$ with dominating mixed smoothness $1/p<r<2$. We show that order 2 digital nets achieve the…

数值分析 · 数学 2015-10-16 Aicke Hinrichs , Lev Markhasin , Jens Oettershagen , Tino Ullrich

We define a Walsh space which contains all functions whose partial mixed derivatives up to order $\delta \ge 1$ exist and have finite variation. In particular, for a suitable choice of parameters, this implies that certain Sobolev spaces…

数值分析 · 数学 2013-04-02 Josef Dick

In this article we review some of recent results on higher order quasi-Monte Carlo (HoQMC) methods. After a seminal work by Dick (2007, 2008) who originally introduced the concept of HoQMC, there have been significant theoretical progresses…

数值分析 · 数学 2020-02-04 Takashi Goda , Kosuke Suzuki

We consider the efficient construction of polynomial lattice rules, which are special cases of so-called quasi-Monte Carlo (QMC) rules. These are of particular interest for the approximate computation of multivariate integrals where the…

数值分析 · 数学 2020-08-21 Adrian Ebert , Peter Kritzer , Onyekachi Osisiogu , Tetiana Stepaniuk

Quasi-Monte Carlo (QMC) methods are equal weight quadrature rules to approximate integrals over the unit cube with respect to the uniform measure. In this paper we discuss QMC integration with respect to general product measures defined on…

数值分析 · 数学 2020-09-16 Josef Dick , Friedrich Pillichshammer

Gerber and Chopin (2015) recently introduced Sequential quasi-Monte Carlo (SQMC) algorithms as an efficient way to perform filtering in state-space models. The basic idea is to replace random variables with low-discrepancy point sets, so as…

统计计算 · 统计学 2015-06-22 Mathieu Gerber , Nicolas Chopin

We consider the problem of improving the efficiency of randomized Fourier feature maps to accelerate training and testing speed of kernel methods on large datasets. These approximate feature maps arise as Monte Carlo approximations to…

机器学习 · 统计学 2015-08-11 Haim Avron , Vikas Sindhwani , Jiyan Yang , Michael Mahoney

In this paper we give explicit constructions of point sets in the $s$ dimensional unit cube yielding quasi-Monte Carlo algorithms which achieve the optimal rate of convergence of the worst-case error for numerically integrating high…

数值分析 · 数学 2013-04-02 Josef Dick

In this paper, we study randomized quasi-Monte Carlo (QMC) integration using digitally shifted digital nets. We express the mean square QMC error of the $n$-th discrete approximation $f_n$ of a function $f\colon[0,1)^s\to \mathbb{R}$ for…

数值分析 · 数学 2019-12-09 Takashi Goda , Ryuichi Ohori , Kosuke Suzuki , Takehito Yoshiki

In this paper we study quasi-Monte Carlo integration of smooth functions using digital nets. We fold digital nets over $\mathbb{Z}_{b}$ by means of the $b$-adic tent transformation, which has recently been introduced by the authors, and…

数值分析 · 数学 2019-12-09 Takashi Goda , Kosuke Suzuki , Takehito Yoshiki

We study quasi-Monte Carlo (QMC) integration of smooth functions defined over the multi-dimensional unit cube. Inspired by a recent work of Pan and Owen, we study a new construction-free median QMC rule which can exploit the smoothness and…

数值分析 · 数学 2023-04-28 Takashi Goda , Pierre L'Ecuyer

We study a random sampling technique to approximate integrals $\int_{[0,1]^s}f(\mathbf{x})\,\mathrm{d}\mathbf{x}$ by averaging the function at some sampling points. We focus on cases where the integrand is smooth, which is a problem which…

数值分析 · 数学 2012-11-21 Josef Dick

Quasi-Monte Carlo algorithms are studied for designing discrete approximations of two-stage linear stochastic programs. Their integrands are piecewise linear, but neither smooth nor lie in the function spaces considered for QMC error…

最优化与控制 · 数学 2014-10-31 H. Heitsch , H. Leövey , W. Römisch

In this paper, we consider Quasi-Monte Carlo (QMC) worst case error of weighted smooth function classes in $C^\infty[0,1]^s$ by a digital net over $\mathbb F_2$. We show that the ratio of the worst case error to the QMC integration error of…

数值分析 · 数学 2016-11-03 Matsumoto Makoto , Ryuichi Ohori , Takehito Yoshiki

The fast computation of large kernel sums is a challenging task, which arises as a subproblem in any kernel method. We approach the problem by slicing, which relies on random projections to one-dimensional subspaces and fast Fourier…

数值分析 · 数学 2025-02-25 Johannes Hertrich , Tim Jahn , Michael Quellmalz
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