Results 21 to 30 of about 355,580 (298)

Is the Best Fitting Curve Always Unique?

open access: yesJournal of Mathematics, 2013
Fitting straight lines and simple curved objects (circles, ellipses, etc.) to observed data points is a basic task in computer vision and modern statistics (errors-in-variables regression). We have investigated the problem of existence of the best fit in
N. Chernov, Q. Huang, H. Ma
doaj   +1 more source

Equivariant adjusted least squares estimator in two-line fitting model

open access: yesModern Stochastics: Theory and Applications, 2016
We consider the two-line fitting problem. True points lie on two straight lines and are observed with Gaussian perturbations. For each observed point, it is not known on which line the corresponding true point lies.
Sergiy Shklyar
doaj   +1 more source

Curve Fitting-Based Phase Optimization for Microwave Power Transfer

open access: yesIEEE Access, 2022
Microwave power transfer provides power wirelessly by converting electromagnetic waves emitted by an antenna to DC power using a rectifying antenna (rectenna). We are developing a distributed cooperative power transfer system that intentionally generates
Kentaro Hayashi   +6 more
doaj   +1 more source

Implementation of Card: Curve-Fitting Allelochemical Response Data

open access: yesDose-Response, 2005
Bioassay techniques are essential methods used to study the effects of allelochemicals on plant processes. It is often observed that the biological processes are stimulated at low allelochemical concentrations and inhibited as the concentrations increase.
De Li Liu, Min An
doaj   +1 more source

Curve-Fitting on Graphics Processors Using Particle Swarm Optimization [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2014
Curve fitting is a fundamental task in many research fields. In this paper we present results demonstrating the fitting of 2D images using CUDA (compute unified device architecture) on NVIDIA graphics processors via particle swarm optimization (PSO ...
R. T. Kneusel
doaj   +1 more source

Long-Distance Pollen Dispersal in Urban Green Roof and Ground-Level Habitats

open access: yesFrontiers in Ecology and Evolution, 2022
Long-distance pollen dispersal is critical for gene flow in plant populations, yet pollen dispersal patterns in urban habitats such as green roofs have not been extensively studied.
Chelsea L. Butcher   +8 more
doaj   +1 more source

Fitting curve of parameter f.

open access: yes, 2022
Fitting curve of parameter f.
Juan Zhang (48597)   +5 more
core   +1 more source

A Polynomial Fitting Problem: The Orthogonal Distances Method

open access: yesMathematics, 2022
The classical curve-fitting problem to relate two variables, x and y, deals with polynomials. Generally, this problem is solved by the least squares method (LS), where the minimization function considers the vertical errors from the data points to the ...
Luis Alberto Cantera-Cantera   +4 more
doaj   +1 more source

Evaluating instrumented Charpy impact strain signals using curve fitting equations

open access: yes, 2014
An effective and simple way to develop equations from impact strain signals was proposed. Little research has been performed in this area, but this equation is very important for evaluating input signals in finite element analysis impact tests and for ...
Ali, Mohd Basri, Abdullah, Shahrum
core   +1 more source

Analysis of Surface Plasmon Resonance Curves with a Novel Sigmoid-Asymmetric Fitting Algorithm

open access: yesSensors, 2015
The present study introduces a novel curve-fitting algorithm for surface plasmon resonance (SPR) curves using a self-constructed, wedge-shaped beam type angular interrogation SPR spectroscopy technique.
Daeho Jang, Geunhyoung Chae, Sehyun Shin
doaj   +1 more source

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