Results 71 to 80 of about 344,169 (311)
Rank‐based estimation of propensity score weights via subclassification
Canadian Journal of Statistics, EarlyView.Abstract Propensity score (PS) weighting estimators are widely used for causal effect estimation and enjoy desirable theoretical properties, such as consistency and potential efficiency under correct model specification. However, their performance can degrade in practice due to sensitivity to PS model misspecification.
Linbo Wang +3 more
wiley +1 more source
A criterion of the existence of an embedding of a monothetic monoid into a topological group
Topological Algebra and its Applications, 2019 Using properties of unitary Cauchy filters on monothetic monoids, we prove a criterion of the existence of an embedding of such a monoid into a topological group.
Averbukh Boris G.
doaj +1 more source
Canadian Journal of Statistics, EarlyView.Abstract We establish the consistency and the asymptotic distribution of the least squares estimators of the coefficients of a subset vector autoregressive process with exogenous variables (VARX). Using a martingale central limit theorem, we derive the asymptotic normal distribution of the estimators. Diagnostic checking is discussed using kernel‐based
Pierre Duchesne +2 more
wiley +1 more source
Proof constructions and evaluations
Educational Studies in Mathematics, 2009 In this article, we focus on a group of 39 prospective elementary (grades K-6) teachers who had rich experiences with proof, and we examine their ability to construct proofs and evaluate their own constructions. We claim that the combined "construction-evaluation" activity helps illuminate certain aspects of prospective teachers' and presumably other ...
Stylianides, A, Stylianides, G
openaire +2 more sources
Ngos' Contributions to Innovation: Innovation Enablers or Lead Innovators?
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This study explores how non‐governmental organisations (NGOs) engage with innovation processes. Drawing on a comparative case study of two NGOs working in water sustainability, the paper analyses NGO involvement across seven stages of the innovation process.
Maria Cristina Pietronudo +3 more
wiley +1 more source
On the definition of the classical connectives and quantifiers [PDF]
, 2015 Classical logic is embedded into constructive logic, through a definition of the classical connectives and quantifiers in terms of the constructive ones.Comment: Why is this a Proof?, Festschrift for Luiz Carlos Pereira ...
Dowek, Gilles
core +2 more sources
Ground State Structure of a Coupled 2-Fermion System in Supersymmetric Quantum Mechanics
, 1996 We prove the uniqueness of the ground state for a supersymmetric quantum mechanical system of two fermions and two bosons, which is closely related to the N=1 WZ-model.
Claudson +7 more
core +2 more sources
European Policy Analysis, EarlyView.ABSTRACT This article addresses a critical issue in evidence‐informed policymaking: the challenge of translating knowledge into policy outputs amidst the complex interplay between research and politics. It discusses the concept of “blocked learning,” where individual‐level learning fails to scale up to organizational and policy levels, thus impeding ...
Thenia Vagionaki
wiley +1 more source
A constructive proof of the Wedderburn-Artin theorem
, 2014 In this short note, we use the idempotent decomposition to give an explicit isomorphism from a semisimple Artinian ring to an external direct sum of finite full matrix rings over division ...
Gao, Sheng
core
Energy Science &Engineering, EarlyView.ABSTRACT System dynamics uncertainties and cyberattacks pose significant challenges to load frequency control in power systems. This paper presents a data‐driven load frequency control strategy for interconnected multi‐area power systems subject to denial‐of‐service attacks that disrupt both feedforward and feedback communication channels.
Yuhao Chen +4 more
wiley +1 more source