Results 11 to 20 of about 169,109 (267)
Physical Review Letters, 2012 A quantum spline is a smooth curve parameterised by time in the space of unitary transformations, whose associated orbit on the space of pure states traverses a designated set of quantum states at designated times, such that the trace norm of the time ...
Brody, DC, Holm, DD, Meier, DM
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Splines with nonnegative 𝐵-spline coefficients [PDF]
Mathematics of Computation, 1974 We consider the question of the approximation of nonnegative functions by nonnegative splines of order k (degree > k > k ) compared with approximation by that subclass of nonnegative splines of order k consisting of all those whose B-spline coefficients are nonnegative; while approximation by the former gives ...
de Boor, C., Daniel, James W.
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Axioms, 2015 Conventional splines offer powerful means for modeling surfaces and volumes in three-dimensional Euclidean space. A one-dimensional quaternion spline has been applied for animation purpose, where the splines are defined to model a one-dimensional submanifold in the three-dimensional Lie group. Given two surfaces, all of the diffeomorphisms between them
Zeng, Wei +2 more
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Parâmetro de Qualidade para a Representação do Bordo de Imagens via Spline Cúbica
Semina: Ciências Exatas e Tecnológicas, 2023 O presente trabalho apresenta um novo parâmetro de qualidade para a geração do bordo de imagens bidimensionais por meio da interpolação spline. A motivação do estudo é definir um parâmetro que permita estabelecer um critério de parada para inserção de ...
Eliandro Rodrigues Cirilo +2 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The documentation of historical remains and cultural heritage is of great importance to preserve historical knowledge. Many studies use low-resolution airplane-based laser scanning and manual interpretation for this purpose.
Marcel Storch +3 more
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Approximation and geometric modeling with simplex B-splines associated with irregular triangles [PDF]
, 1990 Bivariate quadratic simplical B-splines defined by their corresponding set of knots derived from a (suboptimal) constrained Delaunay triangulation of the domain are employed to obtain a C1-smooth surface.
Auerbach, S. +4 more
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Deriving Proper Uniform Priors for Regression Coefficients, Parts I, II, and III
Entropy, 2017 It is a relatively well-known fact that in problems of Bayesian model selection, improper priors should, in general, be avoided. In this paper we will derive and discuss a collection of four proper uniform priors which lie on an ascending scale of ...
H.R. Noel van Erp +2 more
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Bases of T-meshes and the refinement of hierarchical B-splines [PDF]
, 2014 In this paper we consider spaces of bivariate splines of bi-degree (m, n) with maximal order of smoothness over domains associated to a two-dimensional grid.
Berdinsky, Dmitry +4 more
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Alzheimer’s & Dementia: Translational Research & Clinical Interventions, 2020 Introduction The frequently used Cox regression applies two critical assumptions, which might not hold for all predictors. In this study, the results from a Cox regression model (CM) and a generalized Cox regression model (GCM) are compared. Methods Data
Jantje Goerdten +2 more
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A fractional spline collocation method for the fractional order logistic equation [PDF]
, 2017 We construct a collocation method based on the fractional B-splines to solve a nonlinear differential problem that involves fractional derivative, i.e. the fractional order logistic equation.
Pezza, L., Pitolli, F.
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