Results 21 to 30 of about 4,993,210 (294)

Evidence and Credibility: Full Bayesian Significance Test for Precise Hypotheses

Entropy, 1999
: A Bayesian measure of evidence for precise hypotheses is presented. The intention is to give a Bayesian alternative to significance tests or, equivalently, to p-values. In fact, a set is defined in the parameter space and the posterior probability, its
Julio Michael Stern, Carlos Alberto de Bragança Pereira   +1 more
doaj   +1 more source

Determination of the rank of an integration lattice [PDF]

, 2006
The continuing and widespread use of lattice rules for high-dimensional numerical quadrature is driving the development of a rich and detailed theory.
Joe, Stephen, Lyness, J.N.
core   +1 more source

Numerical Integration of Peak Functions

Journal of Complexity, 1996
Numerical integration of monotone and unimodal positive functions is considered. Adaptive and nonadaptive methods are studied in the worst case setting. Adaptation significantly helps for the class of unimodal functions, but not for the class of monotone functions. The methods are reliable for nonsmooth and discontinuous functions as well.
Erich Novak, Ingo Roschmann
openaire   +3 more sources

Tracking fluctuating targets in extremely heterogeneous clutter using amplitude information

The Journal of Engineering, 2019
This study analyses the radar fluctuating target detection in G(0)-distributed clutter using dynamic programming – track before detect (DP-TBD) algorithm. G(0)-distributed clutter is often used to fit the complex circumstances. The authors use chi-square
Feng Li, Bangsheng Zhuo, Xiangjun Peng, Miaomiao Cheng, Di Yao   +4 more
doaj   +1 more source

A numerical integration-based Kalman filter for moderately nonlinear systems

Tellus: Series A, Dynamic Meteorology and Oceanography, 2020
This paper introduces a computationally efficient data assimilation scheme based on Gaussian quadrature filtering that potentially outperforms current methods in data assimilation for moderately nonlinear systems.
Sarah A. King, Kazufumi Ito, Daniel Hodyss   +2 more
doaj   +1 more source

Direct numerical simulation of turbulence at lower costs [PDF]

, 1995
Direct Numerical Simulation (DNS) is the most accurate, but also the most expensive, way of computing turbulent flow. To cut the costs of DNS we consider a family of second-order, explicit one-leg time-integration methods and look for the method with the
Veldman, A.E.P., Verstappen, R.W.C.P., Verstappen, R.W.C.P.,, Veldman, A.E.P.,, R.W.C.P. Verstappen, A.E.P. Veldman   +5 more
core   +3 more sources

A numerical evaluation of solvers for the periodic Riccati differential equation [PDF]

, 2009
Efficient and accurate structure exploiting numerical methods for solving the periodic Riccati differential equation (PRDE) are addressed. Such methods are essential, for example, to design periodic feedback controllers for periodic control systems ...
Andras Varga, Varga, Andreas, Varga, Andras,, Varga, Andras, Sergei Gusev, Kagström, Bo, Anton Shiriaev, Gusev, Sergei,, Shiriaev, Anton,, Stefan Johansson, Johansson, Stefan, Shiriaev, Anton, Kågström, Bo,, Gusev, Sergei, Johansson, Stefan,   +14 more
core   +1 more source

Sufficient conditions for the instability of numerical integration methods

, 1969
In a previous paper, a general theorem was investigated for the stability of numerical integration methods for the solution of systems of differential equations.
Karim, Abdel Abbas I.
core   +1 more source

Taylor Polynomials in a High Arithmetic Precision as Universal Approximators

Computation
Function approximation is a fundamental process in a variety of problems in computational mechanics, structural engineering, as well as other domains that require the precise approximation of a phenomenon with an analytic function. This work demonstrates
Nikolaos Bakas
doaj   +1 more source

Feedback Integrators for Mechanical Systems with Holonomic Constraints

Sensors, 2022
The feedback integrators method is improved, via the celebrated Dirac formula, to integrate the equations of motion for mechanical systems with holonomic constraints so as to produce numerical trajectories that remain in the constraint set and preserve ...
Dong Eui Chang, Matthew Perlmutter, Joris Vankerschaver   +2 more
doaj   +1 more source