Results 11 to 20 of about 129,549 (262)
Path Planning Based on Parametric Curves [PDF]
, 2018 Parametric curves are extensively used in engineering. The most commonly used parametric curves are, Bézier, B-splines, (NURBSs), and rational Bézier.
Hilario Pérez, Lucia +7 more
core +1 more source
Minimum distance estimation of parametric Lorenz curves based on grouped data
, 2020 The Lorenz curve, introduced more than 100 years ago, remains as one of the main tools for analysis of inequality. International institutions such as the World Bank collect and publish grouped income data in the form of population and income shares for a
Hajargasht, Gholamreza +1 more
core +1 more source
Minimax properties of Fréchet means of discretely sampled curves [PDF]
, 2012 We study the problem of estimating a mean pattern from a set of similar curves in the setting where the variability in the data is due to random geometric deformations and additive noise.
Gendre, Xavier +3 more
core +1 more source
Curves with rational chord-length parametrization
, 2008 It has been recently proved that rational quadratic circles in standard Bezier form are parameterized by chord-length. If we consider that standard circles coincide with the isoparametric curves in a system of bipolar coordinates, this property comes as ...
Fernández Jambrina, Leonardo +1 more
core +1 more source
A deconvolution approach to estimation of a common shape in a shifted curves model [PDF]
, 2010 This paper considers the problem of adaptive estimation of a mean pattern in a randomly shifted curve model. We show that this problem can be transformed into a linear inverse problem, where the density of the random shifts plays the role of a ...
Jérémie Bigot +3 more
core +1 more source
Modelling Lorenz Curves: Robust and Semi-parametric Issues [PDF]
, 2007 Modelling Lorenz curves (LC) for stochastic dominance comparisons is central to the analysis of income distributions. It is conventional to use non-parametric statistics based on empirical income cumulants which are used in the construction of LC and ...
Cowell, Frank +4 more
core +1 more source
Progressive surface modeling scheme from unorganised curves
, 2006 This paper presents a novel surface modelling scheme to construct a freeform surface progressively from unorganised curves representing the boundary and interior characteristic curves.
Wright, David +3 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source
, 2008 Dynamic partial differential equation (PDE) parametric curves which can be expressed as a coupled system of two hyperbolic equations are developed. In curve design, dynamic PDE parametric curves can be modified intuitively and are more flexible than ...
Zheng, Guo-Qin +4 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook +6 more
wiley +1 more source