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Gravity equations are often used to evaluate the effects of trade policies, such as regional trade agreements. We argue that their suitability for this purpose critically depends on their ability to produce unbiased out-of-sample…

综合经济学 · 经济学 2026-04-21 Nicolas Apfel , Holger Breinlich , Nick Green , Dennis Novy , J. M. C. Santos Silva , Tom Zylkin

This paper introduces a novel control approach for network scheduling and routing that is predictive and reliable in its nature, yet builds upon a linear program, making it fast in execution. First, we describe the canonical system model…

信号处理 · 电气工程与系统科学 2018-09-17 Richard Schoeffauer , Gerhard Wunder

We prove an easy but interesting result about the linear independence of multiple zeta values of different weights.

数论 · 数学 2007-05-23 Sergey Zlobin

For appropriately chosen weights, temporal averages in chaotic systems can be approximated as a weighted sum of averages over reference states, such as unstable periodic orbits. Under strict assumptions, such as completeness of the orbit…

动力系统 · 数学 2025-06-23 Joshua L. Pughe-Sanford , Sam Quinn , Teodor Balabanski , Roman O. Grigoriev

Motivated by an earlier work on fractional-action cosmology with a periodic weight function [1], we extend it by choosing a power-law weight function in the action. In this approach, we obtain a varying gravitational coupling constant. We…

综合物理 · 物理学 2012-03-16 Mubasher Jamil , Muneer A. Rashid , D. Momeni , O. Razina , Kuralay Esmakhanova

Given a bivariate weight function defined on the positive quadrant of $\mathbb{R}^2$, we study polynomials in two variables orthogonal with respect to varying measures obtained by special modifications of this weight function. In…

经典分析与常微分方程 · 数学 2024-09-26 Cleonice F. Bracciali , Antonia M. Delgado , Lidia Fernández , Teresa E. Pérez

A vector composition of a vector $\mathbf{\ell}$ is a matrix $\mathbf{A}$ whose rows sum to $\mathbf{\ell}$. We define a weighted vector composition as a vector composition in which the column values of $\mathbf{A}$ may appear in different…

组合数学 · 数学 2018-08-28 Steffen Eger

Cellular automata (CA) is an important modelling paradigm for complex systems. In the design of cellular automata, the most difficult task is to find the transformation rules that describe the temporal evolution or pattern of a modelled…

元胞自动机与格子气 · 物理学 2023-10-03 Lei Kou , Fangfang Zhang , Luobing Chen , Wende Ke , Quande Yuan , Junhe Wan , Zhen Wang

We present an extension of two policy-iteration based algorithms on weighted graphs (viz., Markov Decision Problems and Max-Plus Algebras). This extension allows us to solve the following inverse problem: considering the weights of the…

离散数学 · 计算机科学 2009-11-18 Laurent Fribourg , Etienne André

Behavioural economics provides labels for patterns in human economic behaviour. Probability weighting is one such label. It expresses a mismatch between probabilities used in a formal model of a decision (i.e. model parameters) and…

理论经济学 · 经济学 2020-05-04 Ole Peters , Alexander Adamou , Mark Kirstein , Yonatan Berman

Here we introduce the idea of using rational expectations, a core concept in economics and finance, as a tool to predict the optimal failure time for a wide class of weighted k-out-of-n reliability systems. We illustrate the concept by…

物理与社会 · 物理学 2021-12-21 Jorgen Vitting Andersen , Roy Cerqueti , Jessica Riccioni

We describe a numerical technique to compute the equilibrium measure, in logarithmic potential theory, living on the attractor of Iterated Function Systems composed of one-dimensional affine maps. This measure is obtained as the limit of a…

数值分析 · 数学 2013-11-20 Giorgio Mantica

The problem of interpreting or aggregating multiple rankings is common to many real-world applications. Perhaps the simplest and most common approach is a weighted rank aggregation, wherein a (convex) weight is applied to each input ranking…

信息检索 · 计算机科学 2022-06-02 Tyler Perini , Amy Langville , Glenn Kramer , Jeff Shrager , Mark Shapiro

With rare exceptions, in high school and college/university physics courses literature and in journals of physics, the weight is defined as a gravitational force or an exclusive consequence of it. These definitions lack logic from the…

物理教育 · 物理学 2007-05-23 J. M. L. Figueiredo

We propose a new variable selection procedure for a functional linear model with multiple scalar responses and multiple functional predictors. This method is based on basis expansions of the involved functional predictors and coefficients…

统计理论 · 数学 2023-11-03 Alban Mina Mbina , Guy Martial Nkiet

The wave function $\psi$ is interpreted as charge density, or charge distribution, at each point in space. This is a physical interpretation of $\psi$. The notion of speed can be associated with $\psi$, which leads to the concept of…

综合物理 · 物理学 2007-05-23 Koen J. van Vlaenderen

A featured transition system is a transition system in which the transitions are annotated with feature expressions: Boolean expressions on a finite number of given features. Depending on its feature expression, each individual transition…

形式语言与自动机理论 · 计算机科学 2017-02-28 Uli Fahrenberg , Axel Legay

The scalar and vector potentials of the acceleration field and the pressure field are calculated for the first time for a rotating relativistic uniform system, and the dependence of the potentials on the angular velocity is found. These…

综合物理 · 物理学 2024-10-24 Sergey G. Fedosin

Using a new Bayesian method for solving inverse quantum problems, potentials of quantum systems are reconstructed from coordinate measurements in non-stationary states. The approach is based on two basic inputs: 1. a likelihood model,…

量子物理 · 物理学 2007-05-23 J. C. Lemm

We introduce a simple method to estimate the system parameters in continuous dynamical systems from the time series. In this method, we construct a modified system by introducing some constants (controlling constants) into the given…

混沌动力学 · 物理学 2009-11-10 P. Palaniyandi , M. Lakshmanan