Exploració per autor "Silveira, Rodrigo Ignacio"
Ara es mostren els items 21-40 de 76
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Computing optimal shortcuts for networks
Garijo Royo, Delia; Marquez Pérez, Alberto; Rodríguez, Natalia; Silveira, Rodrigo Ignacio (2018)
Text en actes de congrés
Accés obertWe augment a plane Euclidean network with a segment or shortcut to minimize the largest distance between any two points along the edges of the resulting network. In this continuous setting, the problem of computing distances ... -
Computing optimal shortcuts for networks
Garijo Royo, Delia; Marquez Pérez, Alberto; Rodríguez, Natalia; Silveira, Rodrigo Ignacio (2018)
Text en actes de congrés
Accés obertWe study augmenting a plane Euclidean network with a segment, called shortcut, to minimize the largest distance between any two points along the edges of the resulting network. Questions of this type have received considerable ... -
Computing optimal shortcuts for networks
Garijo Royo, Delia; Marquez Pérez, Alberto; Rodríguez, Natalia; Silveira, Rodrigo Ignacio (Elsevier, 2019-11-16)
Article
Accés obertWe study augmenting a plane Euclidean network with a segment, called a shortcut, to minimize the largest distance between any two points along the edges of the resulting network. Problems of this type have received ... -
Computing similarity between piecewise-linear functions
Agarwal, Pankaj; Aronov, Boris; Kreveld, Marc van; Löffler, Maarten; Silveira, Rodrigo Ignacio (ACM Press. Association for Computing Machinery, 2010)
Text en actes de congrés
Accés obertWe study the problem of computing the similarity between two piecewise-linear bivariate functions de ned over a common domain, where the surfaces they de ne in 3D|polyhedral terrains|can be transformed vertically by a ... -
Connect the dot: computing feed-links for network extension
Speckmann, Bettina; Silveira, Rodrigo Ignacio; Aronov, Boris; Buchin, Kevin; Buchin, Maike; Jansen, Bart; De Jong, Tom; Kreveld, Marc van; Loffler, Maarten; Luo, Jun (2011-12-20)
Article
Accés obertRoad network analysis can require distance from points that are not on the network themselves. We study the algorithmic problem of connecting a point inside a face (region) of the road network to its boundary while ... -
Continuous mean distance of a weighted graph
Garijo Royo, Delia; Marquez Pérez, Alberto; Silveira, Rodrigo Ignacio (2023-08-01)
Article
Accés obertWe study the concept of the continuous mean distance of a weighted graph. For connected unweighted graphs, the mean distance can be defined as the arithmetic mean of the distances between all pairs of vertices. This parameter ... -
Continuous mean distance of a weighted graph
Garijo Royo, Delia; Marquez Pérez, Alberto; Silveira, Rodrigo Ignacio (2022)
Text en actes de congrés
Accés obertWe study the concept of the continuous mean distance of a weighted graph. For connected unweighted graphs, the mean distance can be defined as the arithmetic mean of the distances between all pairs of vertices. This parameter ... -
Farthest color Voronoi diagrams: complexity and algorithms
Mantas, Ioannis; Papadopoulou, Evanthia; Sacristán Adinolfi, Vera; Silveira, Rodrigo Ignacio (Springer, 2021)
Text en actes de congrés
Accés restringit per política de l'editorialThe farthest-color Voronoi diagram (FCVD) is a farthestsite Voronoi structure defined on a family P of m point-clusters in the plane, where the total number of points is n. The FCVD finds applications in problems related ... -
Flips in higher order Delaunay triangulations
Arseneva, Elena; Bose, Prosenjit; Cano Vila, María del Pilar; Silveira, Rodrigo Ignacio (2021)
Text en actes de congrés
Accés restringit per política de l'editorialWe study the flip graph of higher order Delaunay triangulations. A triangulation of a set S of n points in the plane is order-k Delaunay if for every triangle its circumcircle encloses at most k points of S. The flip graph ... -
Flow computations on imprecise terrains
Driemel, Anne; Haverkort, Herman; Löffler, Maarten; Silveira, Rodrigo Ignacio (Springer Verlag, 2011)
Text en actes de congrés
Accés restringit per acord de confidencialitatWe study water flow computation on imprecise terrains. We consider two approaches to modeling flow on a terrain: one where water flows across the surface of a polyhedral terrain in the direction of steepest descent, and ... -
Flow computations on imprecise terrains
Driemel, Anne; Haverkort, Herman; Löffler, Maarten; Silveira, Rodrigo Ignacio (2013)
Article
Accés obertWe study water flow computation on imprecise terrains. We consider two approaches to modeling flow on a terrain: one where water flows across the surface of a polyhedral terrain in the direction of steepest descent, and ... -
Geomasking through perturbation, or counting points in circles
Löffler, Maarten; Luo, Jun; Silveira, Rodrigo Ignacio (2017)
Text en actes de congrés
Accés restringit per política de l'editorialMotivated by a technique in privacy protection, in which n points are randomly perturbed by at most a distance r, we study the following problem: Given n points and m circles in the plane, what is the maximum r such that ... -
GEOMETRIA DISCRETA I ALGORÍTMICA | FINAL
Silveira, Rodrigo Ignacio; Huemer, Clemens; Pfeifle, Julián (Universitat Politècnica de Catalunya, 2023-12-19)
Examen
Accés restringit a la comunitat UPC -
Geometric biplane graphs I: maximal graphs
Hurtado Díaz, Fernando Alfredo; Garcia Olaverri, Alfredo Martin; Korman Cozzetti, Matías; Matos, Inés P.; Saumell, Maria; Silveira, Rodrigo Ignacio; Tejel Altarriba, Francisco Javier; Tóth, Csaba D. (2013)
Text en actes de congrés
Accés obert -
Geometric biplane graphs I: maximal graphs
Garcia Olaverri, Alfredo Martin; Hurtado Díaz, Fernando Alfredo; Korman Cozzetti, Matías; Matos, Inés P.; Saumell, Maria; Silveira, Rodrigo Ignacio; Tejel Altarriba, Francisco Javier; Tóth, Csaba D. (2015-03-01)
Article
Accés obertWe study biplane graphs drawn on a finite planar point set in general position. This is the family of geometric graphs whose vertex set is and can be decomposed into two plane graphs. We show that two maximal biplane ... -
Geometric biplane graphs II: graph augmentation
Garcia Olaverri, Alfredo Martin; Hurtado Díaz, Fernando Alfredo; Korman Cozzetti, Matías; Matos, Inés P.; Saumell, Maria; Silveira, Rodrigo Ignacio; Tejel Altarriba, Francisco Javier; Tóth, Csaba D. (2015-03-01)
Article
Accés obertWe study biplane graphs drawn on a finite point set in the plane in general position. This is the family of geometric graphs whose vertex set is and which can be decomposed into two plane graphs. We show that every ... -
Geometric Biplane Graphs II: Graph Augmentation
Hurtado Díaz, Fernando Alfredo; Garcia Olaverri, Alfredo Martin; Korman Cozzetti, Matías; Matos, Inés P.; Saumell, Maria; Silveira, Rodrigo Ignacio; Tejel Altarriba, Francisco Javier; Tóth, Csaba D. (2013)
Text en actes de congrés
Accés obertWe study biplane graphs drawn on a nite point set S in the plane in general position. This is the family of geometric graphs whose vertex set is S and which can be decomposed into two plane graphs. We show that every ... -
Hamiltonicity for convex shape Delaunay and Gabriel Graphs
Bose, Prosenjit; Cano Vila, María del Pilar; Saumell Mendiola, Maria; Silveira, Rodrigo Ignacio (Springer, 2019)
Text en actes de congrés
Accés restringit per política de l'editorialWe study Hamiltonicity for some of the most general variants of Delaunay and Gabriel graphs. Instead of defining these proximity graphs using circles, we use an arbitrary convex shape C. Let S be a point set in the plane. ... -
Hamiltonicity for convex shape Delaunay and Gabriel graphs
Bose, Prosenjit; Cano Vila, María del Pilar; Saumell Mendiola, Maria; Silveira, Rodrigo Ignacio (2020-08)
Article
Accés obertWe study Hamiltonicity for some of the most general variants of Delaunay and Gabriel graphs. Instead of defining these proximity graphs using circles, we use an arbitrary convex shape \(\mathcal {C}\) . Let S be a point ... -
Hamiltonicity for convex shape Delaunay and Gabriel graphs
Bose, Prosenjit; Cano Vila, María del Pilar; Saumell Mendiola, Maria; Silveira, Rodrigo Ignacio (2019)
Text en actes de congrés
Accés restringit per política de l'editorialWe study Hamiltonicity for some of the most general variants of Delaunay and Gabriel graphs. Let S be a point set in the plane. The k-order Delaunay graph of S, denoted k-DGC(S), has vertex set S and edge pq provided ...