Results 61 to 70 of about 159,428 (155)
Sublinear and continuous order-preserving functions for noncomplete preorders
, 2002 We characterize the existence of a nonnegative, sublinear and continuous order-preserving function for a not necessarily complete preorder on a real convex cone in an arbitrary topological real vector space. As a corollary of the main result, we present necessary and sufficient conditions for the existence of such an order-preserving function for a ...
BOSI, GIANNI, ZUANON M.
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Learning Scoring Functions with Order-Preserving Losses and Standardized Supervision [PDF]
, 2011 We address the problem of designing surrogate losses for learning scoring functions in the context of label ranking. We extend to ranking problems a notion of order preserving losses previously introduced for multiclass classi?cation, and show that these losses lead to consistent formulations with respect to a family of ranking evaluation metrics.
Buffoni, David +3 more
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Description of weakly additive order-preserving functionals on the plane
Владикавказский математический журнал, 2011 В работе получено описание пространства слабо аддитивных сохраняющих порядок функционалов на плоскости.
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Strongly order preserving semiflows generated by functional differential equations
Journal of Differential Equations, 1991 The authors' goal is to extend some of their previous results in the theory of monotone dynamical systems to certain systems of functional differential equations. The fundamental paper in this field was written by M. Hirsch and appeared in 1988; Hirsch established that most orbits of a strongly monotone semiflow on a strongly ordered space tend to a ...
Smith, Hal L, Thieme, Horst R
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On compatible and order-preserving functions on lattices [PDF]
Banach Center Publications, 1982 G. Eigenthaler, D. Dorninger
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A robust detail preserving anisotropic diffusion for speckle reduction in ultrasound images
BMC Genomics, 2011 Background Speckles in ultrasound imaging affect image quality and can make the post-processing difficult. Speckle reduction technologies have been employed for removing speckles for some time.
Liu Xiaoming +5 more
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Low-SNR Image Noise Removal on Local Edge-Preserving Function
工程科学与技术, 2009 :Traditional noise removal arithmetic required that the signal-noise-ratio of the image is high, noise removed image by the traditional noise removal arithmetic loss large amounts of edge and texture information in the image.
hekun, 周激流, 刘昶
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Nonlinear Second-Order Partial Differential Equation-Based Image Smoothing Technique [PDF]
Memoirs of the Scientific Sections of the Romanian Academy, 2016 A second-order nonlinear parabolic PDE-based restoration model is provided in this article. The proposed anisotropic diffusion-based denoising approach is based on some robust versions of the edge-stopping function and of the conductance parameter.
Tudor Barbu +2 more
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Applied SciencesThe issue of Electrical Impedance Tomography (EIT) is a well-known inverse problem that presents challenging characteristics. In order to address the difficulties associated with ill-conditioned inverses, regularization methods are typically employed ...
Ruwen Zhao +3 more
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Classification of Neuropsychiatric Disorders via Brain-Region-Selected Graph Convolutional Network
IEEE Transactions on Neural Systems and Rehabilitation EngineeringFor the classification of patients with neuropsychiatric disorders based on rs-fMRI data, this paper proposed a Brain-Region-Selected graph convolutional network (BRS-GCN).
Zhenzhe Qin +3 more
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