搜索结果: 16-30 共查到“知识库 泛函分析”相关记录848条 . 查询时间(3.666 秒)
为消除基本宽线检测算子中的冗余计算量，提高算法的运算速度，该文提出一种宽线算子的快速实现方法随机移动宽线算子。基本宽线算子采取逐像素移动模板的方式检测图像中的宽线特征，与之不同，随机移动宽线算子在检测时，随机地在图像中放置检测模板，并根据当前像素类型采用启发式的准则确定模板移动的策略，从而加快了模板移动速度，较好地消除了基本宽线检测算法中的冗余运算；在此基础上，提出了两种提前结束条件，可根据检测情...
基于辛空间中全迷向子空间的纠错码
纠错码 辛空间 全迷向子空间 Steiner结构
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2018/2/6
设$\mathbb{F}_q^{2\nu}$是$q$元有限域$\mathbb{F}_q$上的$2\nu$ 维辛空间. 对于给定的整数$0\leq m\leq \nu$, 设${\cal M}(m,0;2\nu)$是$\mathbb{F}_q^{2\nu}$的所有$m$ 维全迷向子空间的集合, 而${\cal M}(2\nu)=\bigcup_{m=0}^\nu{\cal M}(m,0;2\nu)$...
GIAMBELLI AND DEGENERACY LOCUS FORMULAS FOR CLASSICAL G/P SPACES
LOCUS FORMULAS GIAMBELLI
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2015/12/17
Let G be a classical complex Lie group, P any parabolic subgroup
of G, and X = G/P the corresponding homogeneous space, which parametrizes
(isotropic) partial flags of subspaces of a fix...
Arakelov Theory of the Lagrangian Grassmannia
Lagrangian Grassmannia space
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2015/12/17
Let E be a symplectic vector space of dimension 2n (with the
standard antidiagonal symplectic form) and let G be the Lagrangian
Grassmannian over SpecZ, parametrizing Lagrangian subspaces in E
over...
QUANTUM GIAMBELLI FORMULAS FOR ISOTROPIC GRASSMANNIANS
ISOTROPIC GRASSMANNIANS Vector space
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2015/12/17
Let X be a symplectic or odd orthogonal Grassmannian which
parametrizes isotropic subspaces in a vector space equipped with a nondegenerate (skew) symmetric form. We prove quantum Giambelli formulas ...
Compact Central WENO Schemes for MultiDimensional Conservation Laws
hyperbolic systems central difference schemes high-order accuracy nonoscillatory schemes WENO reconstruction CWENO reconstruction
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2015/10/8
We present a new third-order central scheme for approximating solutions of systems of conservation laws in one and two space dimensions. In the spirit of Godunov-type schemes, our method is based on r...
Averaging of incompressible ows on two-dimensional surfaces
two-dimensional surfaces incompressible
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2015/9/29
We consider a process on a compact two-dimensional surface which consists
of the fast motion along the stream lines of an incompressible periodic vector eld
perturbed by white noise. It gives rise ...
Geodesics in Margulis spacetimes
Margulis spacetimes Geodesics
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2015/9/29
Let M3 be a Margulis spacetime whose associated complete hyperbolic surface
62 has a compact convex core. Generalizing the correspondence between closed geodesics
on M3
and closed geodesics on 62
...
Trace coordinates on Fricke spaces of some simple hyperbolic surfaces
simple hyperbolic surfaces Fricke spaces
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2015/9/29
The work of Fricke-Klein [20] develops the deformation theory of hyperbolic
structures on a surface Σ in terms of the space of representations of its fundamental group damental group π = π1(Σ) in SL(...
A primer on the (2 + 1) Einstein universe
Minkowski space spacetime Lorentzian manifold
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2015/9/29
The Einstein universe is the conformal compactification of Minkowski space.
It also arises as the ideal boundary of anti-de Sitter space. The purpose of this article is
to develop the syntheti...
NONSTANDARD LORENTZ SPACE FORMS
lorentz Space form
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2015/9/29
In their recent paper [8], Kulharni and Raymond show that a closed
3-manifold which admits a complete Lorentz metric of constant curvature 1
(henceforth called a complete Lorentz structure) must be ...
THE FUNDAMENTAL GROUP OF A COMPACT FLAT LORENTZ SPACE FORM IS VIRTUALLY POLYCYCLIC
lorentz Multi-loop spatial form
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2015/9/29
A flat Lorentz space form is a geodesically complete Lorentzian manifold of
zero curvature. It is well known (see Auslander & Markus [3]) that such a space
M may be represented as a quotient Rw
/Γ,...
The Generalized Area Theorem and Some of its Consequences
Transmission of binary binary files
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2015/8/21
There is a fundamental relationship between belief propagation and maximum a posteriori decoding. The case of transmission over the binary erasure channel was investigated in detail in a companion pap...
VARIANCE COMPONENTS AND GENERALIZED SOBOL' INDICES
VARIANCE COMPONENTS GENERALIZED SOBOL' INDICES
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2015/8/21
This paper introduces generalized Sobol' indices, compares strategies for their estimation, and makes a systematic search for ecient estimators. Of particular interest are contrasts,
sums of squares...
Empirical Bayes modeling, computation, and accuracy
modeling computation accuracy
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2015/8/20
This article is intended as an expositional overview of empirical Bayes modeling
methodology, presented in a simpli ed framework that reduces technical diculties. The
two principal empirical Bayes ...