Results 21 to 30 of about 1,376,473 (288)
CONDITIONS FOR EXACT CAVALIERI ESTIMATION
Image Analysis & Stereology, 2014 Exact Cavalieri estimation amounts to zero variance estimation of an integral with systematic observations along a sampling axis. A sufficient condition is given, both in the continuous and the discrete cases, for exact Cavalieri sampling. The conclusions suggest improvements on the current stereological application of fractionator-type sampling.
Cruz-Orive, Luis M. +2 more
openaire +4 more sources
Exact local Whittle estimation of fractional integration [PDF]
The Annals of Statistics, 2005 An exact form of the local Whittle likelihood is studied with the intent of developing a general-purpose estimation procedure for the memory parameter (d) that does not rely on tapering or differencing prefilters. The resulting exact local Whittle estimator is shown to be consistent and to have the same N(0,{1/4}) limit distribution for all values of d
Shimotsu, Katsumi, Phillips, Peter C B
openaire +4 more sources
Exact estimation for Markov chain equilibrium expectations [PDF]
Journal of Applied Probability, 2014 We introduce a new class of Monte Carlo methods, which we call exact estimation algorithms. Such algorithms provide unbiased estimators for equilibrium expectations associated with real-valued functionals defined on a Markov chain. We provide easily implemented algorithms for the class of positive Harris recurrent Markov chains, and for chains that are
Glynn, Peter W., Rhee, Chang-Han
openaire +3 more sources
Inferences for Generalized Pareto Distribution Based on Progressive First-Failure Censoring Scheme
Complexity, 2021 In this article, we consider estimation of the parameters of a generalized Pareto distribution and some lifetime indices such as those relating to reliability and hazard rate functions when the failure data are progressive first-failure censored.
Rashad M. El-Sagheer +2 more
doaj +1 more source
Existence theories and exact solutions of nonlinear PDEs dominated by singularities and time noise
Nonlinear Analysis, 2023 The current research deals with the exact solutions of the nonlinear partial differential equations having two important difficulties, that is, the coefficient singularities and the stochastic function (white noise).
Muhammad Ozair Ahmed +5 more
doaj +1 more source
Robust error estimates in weak norms for advection dominated transport problems with rough data [PDF]
, 2014 We consider mixing problems in the form of transient convection--diffusion equations with a velocity vector field with multiscale character and rough data.
Burman, Erik
core +2 more sources
Exact Maximum-Entropy Estimation with Feynman Diagrams [PDF]
Journal of Statistical Physics, 2018 A classical longstanding open problem in statistics is finding an explicit expression for the probability measure which maximizes entropy with respect to given constraints. In this paper a solution to this problem is found, using perturbative Feynman calculus. The explicit expression is given as a sum over weighted trees.
Zernik, Amitai Netser +2 more
openaire +3 more sources
Exact boundaries for the analytical approximate solution of a class of first-order nonlinear differential equations in the real domain [PDF]
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021 The paper gives a solution to one of the problems of the analytical approximate method for one class first order nonlinear differential equations with moving singular points in the real domain.
Viktor N. Orlov, Oleg A. Kovalchuk
doaj +1 more source
Exact estimation of multiple directed acyclic graphs [PDF]
Statistics and Computing, 2015 This paper considers the problem of estimating the structure of multiple related directed acyclic graph (DAG) models. Building on recent developments in exact estimation of DAGs using integer linear programming (ILP), we present an ILP approach for joint estimation over multiple DAGs, that does not require that the vertices in each DAG share a common ...
Oates, Chris J. +3 more
openaire +4 more sources
Exact Asymptotic Stability Analysis and Region-of-Attraction Estimation for Nonlinear Systems
Abstract and Applied Analysis, 2013 We address the problem of asymptotic stability and region-of-attraction analysis of nonlinear dynamical systems. A hybrid symbolic-numeric method is presented to compute exact Lyapunov functions and exact estimates of regions of attraction of nonlinear ...
Min Wu, Zhengfeng Yang, Wang Lin
doaj +1 more source