Results 11 to 20 of about 303,922 (221)

Quantum splines [PDF]

open access: yesPhysical 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
core   +9 more sources

Splines with nonnegative šµ-spline coefficients [PDF]

open access: yesMathematics 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.
openaire   +1 more source

Diffeomorphism Spline [PDF]

open access: yesAxioms, 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
openaire   +3 more sources

KOLMOGOROV'S SPLINE NETWORK [PDF]

open access: yesIEEE Transactions on Neural Networks, 2003
In this paper, an innovative neural-network architecture is proposed and elucidated. This architecture, based on the Kolmogorov's superposition theorem (1957) and called the Kolmogorov's spline network (KSN), utilizes more degrees of adaptation to data than currently used neural-network architectures (NNAs).
B, Igelnik, N, Parikh
openaire   +2 more sources

L-Splines

open access: yesNumerische Mathematik, 1967
In this paper, we study the problem of unique interpolation and approximation by a class of spline functions,L-splines, containing as special cases the deficient and generalized spline functions ofAhlberg, Nilson, andWalsh [3, 5, 6], the Chebyshevian spline functions ofKarlin andZiegler [27], and the piecewise Hermite polynomial functions, as ...
VARGA, R.S., SCHULTZ, M.H.
openaire   +1 more source

Semialgebraic splines

open access: yesComputer Aided Geometric Design, 2017
25 pages, 6 ...
Michael DiPasquale   +2 more
openaire   +2 more sources

Variable degree polynomial splines are Chebyshev splines [PDF]

open access: yesAdvances in Computational Mathematics, 2011
Variable degree polynomial (VDP) splines have recently proved themselves as a valuable tool in obtaining shape preserving approximations. However, some usual properties which one would expect of a spline space in order to be useful in geometric modeling, do not follow easily from their definition.
Bosner, Tina, Rogina, Mladen
openaire   +2 more sources

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen   +11 more
wiley   +1 more source

A rational cubic spline with tension [PDF]

open access: yes, 1989
A rational cubic spline curve is described which has tension control parameters for manipulating the shape of the curve. The spline is presented in both interpolatory and rational B-spline forms, and the behaviour of the resulting representations is ...
Gregory, JA, Sarfraz, M
core  

Anti-aliasing with stratified B-spline filters of arbitrary degree [PDF]

open access: yes, 2006
A simple and elegant method is presented to perform anti-aliasing in raytraced images. The method uses stratified sampling to reduce the occurrence of artefacts in an image and features a B-spline filter to compute the final luminous intensity at each ...
Anderson J.   +5 more
core   +1 more source

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