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In this article, we develop a semiparametric Bayesian estimation and model selection approach for partially linear additive models in conditional quantile regression. The asymmetric Laplace distribution provides a mechanism for Bayesian…

统计计算 · 统计学 2013-07-11 Yuao Hu , Kaifeng Zhao , Heng Lian

This paper presents adaptive boundary element methods for positive, negative, as well as zero order operator equations, together with proofs that they converge at certain rates. The convergence rates are quasi-optimal in a certain sense…

数值分析 · 数学 2012-12-21 Tsogtgerel Gantumur

This paper analyzes the nonlinear Small-Time Local Controllability (STLC) of a class of underatuated aerial manipulator robots. We apply methods of Lagrangian reduction to obtain their lowest dimensional equations of motion (EOM). The…

系统与控制 · 电气工程与系统科学 2021-08-17 Skylar X. Wei , Matthew R. Burkhardt , Joel Burdick

Under label shift, the label distribution p(y) might change but the class-conditional distributions p(x|y) do not. There are two dominant approaches for estimating the label marginal. BBSE, a moment-matching approach based on confusion…

机器学习 · 计算机科学 2020-10-20 Saurabh Garg , Yifan Wu , Sivaraman Balakrishnan , Zachary C. Lipton

A LightGBM-Incorporated absorbing boundary condition (ABC) computation approach for the wave-equation-based the radial point interpolation meshless (RPIM) method is proposed to simulate wave propagation in open space during the computation…

计算物理 · 物理学 2025-05-13 Qi-Chang Dong , Zhizhang David Chen

The Schramm-Loewner evolution (SLE) can be simulated by dividing the time interval into N subintervals and approximating the random conformal map of the SLE by the composition of N random, but relatively simple, conformal maps. In the usual…

概率论 · 数学 2010-10-27 Tom Kennedy

We study the numerical solutions of time-dependent systems of partial differential equations, focusing on the implementation of boundary conditions. The numerical method considered is a finite difference scheme constructed by high order…

数值分析 · 数学 2017-10-31 Sofia Eriksson

Forecasting armed conflicts is a critical area of research with the potential to save lives and mitigate suffering. While existing forecasting models offer valuable point predictions, they often lack individual-level uncertainty estimates,…

统计方法学 · 统计学 2026-01-14 David Randahl , Jonathan P. Williams , Håvard Hegre

Variational data assimilation technique applied to identification of optimal approximations of derivatives near boundary is discussed in frames of one-dimensional wave equation. Simplicity of the equation and of its numerical scheme allows…

数学物理 · 物理学 2015-05-13 Eugene Kazantsev

We establish sharp well-posedness and approximation estimates for variational saddle point systems at the continuous level. The main results of this note have been known to be true only in the finite dimensional case. Known spectral results…

数值分析 · 数学 2014-11-04 Constantin Bacuta

The Schramm-Loewner evolution (SLE_\kappa) is a candidate for the scaling limit of random curves arising in two-dimensional critical phenomena. When \kappa < 8, an instance of SLE_\kappa is a random planar curve with almost sure Hausdorff…

概率论 · 数学 2009-06-23 Gregory F. Lawler , Scott Sheffield

We obtain infinitely many boundary operators in the Brownian loop soup in the subcritical phase by analyzing the conformal block expansion of the two-point function that computes the probability of having two marked points on the upper…

数学物理 · 物理学 2026-01-07 Federico Camia , Rongvoram Nivesvivat

We establish optimal $C^s$ boundary regularity for the most general class of (linear and translation invariant) nonlocal elliptic operator of order $2s$. Namely, we consider L\'evy operators that are symmetric and its Fourier symbol…

偏微分方程分析 · 数学 2026-05-19 Florian Grube , Xavier Ros-Oton

We propose and mathematically analyze a new Shifted Boundary Method for the treatment of Dirichlet and Neumann boundary conditions, with provable optimal accuracy in the $L^2$- and $H^1$-norms of the error. The proposed method is built on…

数值分析 · 数学 2025-08-14 J. Haydel Collins , Kangan Li , Alexei Lozinski , Guglielmo Scovazzi

The synthetic control method (SCM) is widely used for constructing the counterfactual of a treated unit based on data from control units in a donor pool. Allowing the donor pool contains more control units than time periods, we propose a…

计量经济学 · 经济学 2026-05-19 Chengwang Liao , Zhentao Shi , Yapeng Zheng

For the identification of switched systems with a measured switching signal, this work aims to analyze the effect of switching strategies on the estimation error. The data for identification is assumed to be collected from globally…

系统与控制 · 电气工程与系统科学 2022-07-26 Shengling Shi , Othmane Mazhar , Bart De Schutter

Simulation-based calibration checking (SBC) is a practical method to validate computationally-derived posterior distributions or their approximations. In this paper, we introduce a new variant of SBC to alleviate several known problems. Our…

The Bayesian Cram\'er-Rao bound (CRB) provides a lower bound on the mean square error of any Bayesian estimator under mild regularity conditions. It can be used to benchmark the performance of statistical estimators, and provides a…

机器学习 · 统计学 2024-09-09 Evan Scope Crafts , Xianyang Zhang , Bo Zhao

In this article a special class of nonlinear optimal control problems involving a bilinear term in the boundary condition is studied. These kind of problems arise for instance in the identification of an unknown space-dependent Robin…

数值分析 · 数学 2024-12-20 Max Winkler

We derive boundary arm exponents and interior arm exponents for SLE$(\kappa)$. Combining with the possible convergence of critical lattice models to SLE, these exponents would give the corresponding alternating half-plane arm exponents and…

概率论 · 数学 2016-07-20 Hao Wu