Results 261 to 270 of about 6,626,969 (302)

Microcalcification Evaluation Based on Shape Parameters

1998
The study of mammographic microcalcifications provides useful information for the diagnosis of breast cancer in early stages. In order to develop a computer-aided diagnostc method to assist radiologists in differentiating malignant from benignant clustered microcalcifications in mammograms, this work has focused on the selection of a set of shape-based
Josep Español, Carles Barceló, J. Martií, M. Osorio, S. Thió, F. Castañer, Josep Forest, R. García, Joaquim Salvi   +8 more
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On choosing “optimal” shape parameters for RBF approximation

Numerical Algorithms, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gregory E. Fasshauer, Jack G. Zhang
openaire   +1 more source

The choice of the shape parameter–A friendly approach

Engineering Analysis with Boundary Elements, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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The shape parameter in the Gaussian function II

Engineering Analysis with Boundary Elements, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Estimation of the pareto shape parameter

Communications in Statistics - Simulation and Computation, 2000
The generalized jackknife is used to reduce the bias of an estimator, based on frequency moments, of the Pareto shape parameter. Computations of amount of bias reduction and simulations of mean-squared errors are presented.
Ennis Donice McCune, Sandra Luna McCune
openaire   +1 more source

On testimating the weibull shape parameter

Communications in Statistics - Simulation and Computation, 1990
A well-known estimator for the shape parameter of a two-parameter Weibull distribution from a failure-censored sample involves a preliminary test of aa null hypothesis concerning the parameter. Efficiency of the resulting testimator varies with the chosen level of significance of the test.
Nimai Kumar Chandra, Arijit Chaudhuri
openaire   +1 more source

B-spline with shape parameter

2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE), 2010
The basis function of B-spline of n order is extended to contain shape control parameter by integral, so that the shape of the constructed curve can be adjusted by changing the parameter value and it possesses the structure and geometry properties analogous to B-spline curve.
null Wei Chen, null Ting Chen, null Wentao Wang   +2 more
openaire   +1 more source

Estimation of the shape parameter for the three-parameter Weibull distribution

Journal of Information and Optimization Sciences, 2001
We propose the approximate maximum likelihood estimator (AMLE) for the shape parameter β in the three-parameter Weibull distribution based on Type-II right censored samples.
Suk-Bok Kang, Young-Suk Cho, Sung-Ho Choi   +2 more
openaire   +1 more source

On testing a shape parameter in the presence of a location and a scale parameter

Series Statistics, 1978
A test on a shape parameter in the presence of two nuisance parameters (a location parameter μ and a scale parameter σ)is proposed. Explicit formulas and approximations are given for three applications where the general and restricted distributions are:Student-vs-Gauss-distribution, λ-vs logistic distribution, and type Iior III vs.
van Montfort, M.A.J., Otten, A.
openaire   +3 more sources

Parameter Estimation of the Shape Parameter of the Castillo–Hadi Model

Communications in Statistics - Theory and Methods, 2005
Abstract In Castillo and Hadi [Castillo, E., Hadi, A. S. (1995). Modeling lifetime data with application to fatigue models. J. Amer. Statist. Assoc. 90:1041–1054], a new model for the analysis of lifetime data in the presence of a covariate is presented. The model is derived based on physical and statistical considerations. In this article, we focus on
Hideki Nagatsuka, Toshinari Kamakura
openaire   +1 more source