Results 11 to 20 of about 110,736 (292)

Application of Three-Dimensional Direct Least Square Method for Ellipsoid Anisotropy Fitting Model of Highly Irregular Drill Hole Patterns

open access: yesApplied Sciences, 2022
Ellipsoid or geometric anisotropy is a widely used method in geostatistical analysis to obtain variograms with different ranges in different directions (azimuth) and relatively similar sill variance. Ellipsoid anisotropy is indispensable in mining when a
Intan Muchtadi-Alamsyah   +4 more
doaj   +1 more source

The Ellipsoid Method Generates Dual Variables [PDF]

open access: yesMathematics of Operations Research, 1985
We show that the ellipsoid algorithm applied to a system of linear inequalities can be implemented in such a way that at each iteration there is a short proof of the containment of the feasible region in the current ellipsoid. Moreover, the data describing each ellipsoid also generate dual variables that provide bounds on the linear functions ...
Burrell, Bruce P., Todd, Michael J.
openaire   +1 more source

Comparison of the ellipsoid and simplex methods

open access: yesLietuvos Matematikos Rinkinys, 1999
The ellipsoid method is presented. The least squers functional of the basic solution linear constrains is used as ellipsoid. The Klee-Minty linear programming problem is used to compare the ellipsoid and simplex methods.
Eligijus Laurinavičius   +1 more
doaj   +3 more sources

Ellipsoidal method for UAVs target tracking and recognition*

open access: yesSystems Science & Control Engineering, 2023
Based on our previous contributions about UAV target tracking and recognition, this paper continues to do the synthesis analysis for the ellipsoidal method for the above practical problem.
Xiao Zhifeng, Jianwang Hong
doaj   +1 more source

Ellipsoidal Method for UAVs Target Tracking and Recognition

open access: yesIEEE Access, 2022
Based on our previous contributions about UAV target tracking and recognition, this paper continues to do the synthesis analysis for the ellipsoidal method for above practical problem.
Dong Liushuan
doaj   +1 more source

Quantification of prostate tumour diameter and volume from MR images using 3D ellipsoid model and its impact on PI-RADS v2.1 assessment

open access: yesScientific Reports, 2022
Maximum diameter and volume of the tumour provide important clinical information and are decision-making parameters for patients suspected with prostate cancer (PCa).
Dharmesh Singh   +4 more
doaj   +1 more source

Recognition of Ellipsoid-like Herbaceous Tibetan Medicinal Materials Using DenseNet with Attention and ILBP-Encoded Gabor Features

open access: yesEntropy, 2023
Tibetan medicinal materials play a significant role in Tibetan culture. However, some types of Tibetan medicinal materials share similar shapes and colors, but possess different medicinal properties and functions.
Liyuan Zhou   +3 more
doaj   +1 more source

Scalable Ellipsoidal Classification for Bipartite Quantum States [PDF]

open access: yes, 2008
The Separability Problem is approached from the perspective of Ellipsoidal Classification. A Density Operator of dimension N can be represented as a vector in a real vector space of dimension $N^{2}- 1$, whose components are the projections of the matrix
A. Holevo   +2 more
core   +1 more source

An extension of the Kelvin image theory to the conducting heaviside ellipsoid [PDF]

open access: yes, 2011
The Kelvin image theory for a conducting sphere is extended to the case of a conducting oblate spheroid in uniform motion along its axis of revolution (a Heaviside ellipsoid) using the well-known method provided by Special Relativity.
Eldakli, Mohsan   +2 more
core   +1 more source

Evolutionary Mahalanobis Distance-Based Oversampling for Multi-Class Imbalanced Data Classification

open access: yesSensors, 2021
The number of sensing data are often imbalanced across data classes, for which oversampling on the minority class is an effective remedy. In this paper, an effective oversampling method called evolutionary Mahalanobis distance oversampling (EMDO) is ...
Leehter Yao, Tung-Bin Lin
doaj   +1 more source

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