Results 41 to 50 of about 2,287,461 (261)

Edge Eigenface Weighted Hausdorff Distance for Face Recognition [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2011
The different face regions have different degrees of importance for face recognition. In previous Hausdorff distance (HD) measures, points are treated as same importance, or weight different points that calculated from gray domain.
Huachun Tan   +6 more
doaj   +1 more source

Some Notes for Two Generalized Trigonometric Families of Distributions

open access: yesAxioms, 2022
The paper deals with two general families of cumulative distribution functions based on arctangent function. We provide analysis of the error of the best one-sided Hausdorff approximation for some special cases of these families.
Maria T. Vasileva
doaj   +1 more source

Locally rich compact sets [PDF]

open access: yes, 2015
We construct a compact metric space that has any other compact metric space as a tangent, with respect to the Gromov-Hausdorff distance, at all points. Furthermore, we give examples of compact sets in the Euclidean unit cube, that have almost any other ...
Chen, Changhao, Rossi, Eino
core   +1 more source

Rational Hausdorff Divisors: a New approach to the Approximate Parametrization of Curves [PDF]

open access: yes, 2013
In this paper we introduce the notion of rational Hausdorff divisor, we analyze the dimension and irreducibility of its associated linear system of curves, and we prove that all irreducible real curves belonging to the linear system are rational and are ...
Rueda, Sonia L.   +2 more
core   +6 more sources

On the Hausdorff distance between the shifted Heaviside step function and the transmuted Stannard growth function

open access: yesBiomath, 2016
In this paper we study the one-sided Hausdorff distance between the shifted Heaviside step--function and the transmuted Stannard growth function. Precise upper and lower bounds for the Hausdorff distance have been obtained.
Anton Iliev Iliev   +2 more
doaj   +1 more source

The Hausdorff core problem on simple polygons

open access: yesJournal of Computational Geometry, 2014
A polygon \(Q\) is a \(k\)-bounded Hausdorff Core of a polygon \(P\) if \(P\) contains \(Q\), \(Q\) is convex, and the Hausdorff distance between \(P\) and \(Q\) is at most \(k\).
Reza Dorrigiv   +7 more
doaj   +1 more source

The Dual Gromov-Hausdorff Propinquity [PDF]

open access: yes, 2014
Motivated by the quest for an analogue of the Gromov-Hausdorff distance in noncommutative geometry which is well-behaved with respect to C*-algebraic structures, we propose a complete metric on the class of Leibniz quantum compact metric spaces, named ...
Alfsen   +45 more
core   +3 more sources

Stable determination of polyhedral interfaces from boundary data for the Helmholtz equation [PDF]

open access: yes, 2014
We study an inverse boundary value problem for the Helmholtz equation using the Dirichlet-to-Neumann map as the data. We consider piecewise constant wavespeeds on an unknown tetrahedral partition and prove a Lipschitz stability estimate in terms of the ...
Beretta, Elena   +3 more
core   +2 more sources

Realizing in-house algorithm-driven free fibula flap set up within 24 hours: a pilot study evaluating accuracy with open-source tools

open access: yesFrontiers in Surgery, 2023
ObjectiveThis study aims to critically evaluate the effectiveness and accuracy of a time safing and cost-efficient open-source algorithm for in-house planning of mandibular reconstructions using the free osteocutaneous fibula graft.
Andreas Vollmer   +12 more
doaj   +1 more source

Robust Geometry Estimation using the Generalized Voronoi Covariance Measure [PDF]

open access: yes, 2015
The Voronoi Covariance Measure of a compact set K of R^d is a tensor-valued measure that encodes geometric information on K and which is known to be resilient to Hausdorff noise but sensitive to outliers. In this article, we generalize this notion to any
Cuel, Louis   +3 more
core   +3 more sources

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