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Capítulos (Matemática Aplicada I): Envíos recientes

Mostrando ítems 41-60 de 65

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      A Mathematica Notebook for Computing the Homology of Iterated Products of Groups 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      Let G be a group which admits the structure of an iterated product of central extensions and semidirect products of abelian ...
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      Calculating cocyclic hadamard matrices in Mathematica: exhaustive and heuristic searches 

      Álvarez Solano, Víctor; Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro (2006)
      We describe a notebook in Mathematica which, taking as input data a homological model for a finite group G of order |G| = ...
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      An algorithm for computing cocyclic matrices developed over some semidirect products 

      Armario Sampalo, José Andrés; Frau García, María Dolores; Real Jurado, Pedro; Álvarez Solano, Víctor (2001)
      An algorithm for calculating a set ofgenerators ofrepresentative 2-cocycles on semidirect product offinite abelian groups ...
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      LBP and irregular graph pyramids 

      Cerman, Martin; González Díaz, Rocío; Kropatsch, Walter G. (2015)
      In this paper, a new codification of Local Binary Patterns (LBP) is given using graph pyramids. The LBP code characterizes ...
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      Topological features for monitoring human activities at distance 

      Lamar León, Javier; Alonso Baryolo, Raúl; García Reyes, Edel; González Díaz, Rocío (2014)
      In this paper, a topological approach for monitoring human activities is presented. This approach makes possible to protect ...
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      Gait-based carried object detection using persistent homology 

      Lamar León, Javier; Alonso Baryolo, Raúl; García Reyes, Edel; González Díaz, Rocío (2014)
      There are surveillance scenarios where it is important to emit an alarm when a person carrying an object is detected. In ...
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      Gait-based gender classification using persistent homology 

      Lamar León, Javier; Cerri, Andrea; García Reyes, Edel; González Díaz, Rocío (2013)
      In this paper, a topological approach for gait-based gender recognition is presented. First, a stack of human silhouettes, ...
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      Human gait identification using persistent homology 

      Lamar León, Javier; García Reyes, Edel; González Díaz, Rocío (2012)
      This paper shows an image/video application using topological invariants for human gait recognition. Using a background ...
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      Removal operations in nD generalized maps for efficient homology computation 

      Damiand, Guillaume; González Díaz, Rocío; Peltier, Samuel (2012)
      In this paper, we present an efficient way for computing homology generators of nD generalized maps. The algorithm proceeds ...
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      Cup products on polyhedral approximations of 3D digital images 

      González Díaz, Rocío; Lamar León, Javier; Umble, Ronald (2011)
      Let I be a 3D digital image, and let Q(I) be the associated cubical complex. In this paper we show how to simplify the ...
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      Reusing integer homology information of binary digital images 

      González Díaz, Rocío; Medrano Garfia, Belén; Sánchez Peláez, Javier; Real Jurado, Pedro (2006)
      In this paper, algorithms for computing integer (co)homology of a simplicial complex of any dimension are designed, extending ...
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      Irregular graph pyramids and representative cocycles of cohomology generators 

      González Díaz, Rocío; Ion, Adrián; Iglesias Ham, Mabel; Kropatsch, Walter G. (2009)
      Structural pattern recognition describes and classifies data based on the relationships of features and parts. Topological ...
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      Simplicial perturbation techniques and effective homology 

      González Díaz, Rocío; Medrano Garfia, Belén; Sánchez Peláez, Javier; Real Jurado, Pedro (2006)
      In this paper, we deal with the problem of the computation of the homology of a finite simplicial complex after an “elementary ...
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      Algebraic topological analysis of time-sequence of digital images 

      González Díaz, Rocío; Medrano Garfia, Belén; Real Jurado, Pedro; Sáchez Peláez, Javier (2005)
      This paper introduces an algebraic framework for a topological analysis of time-varying 2D digital binary–valued images, ...
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      Towards digital cohomology 

      González Díaz, Rocío; Real Jurado, Pedro (2003)
      We propose a method for computing the Z 2–cohomology ring of a simplicial complex uniquely associated with a three–dimensional ...
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      Towards Minimal Barcodes 

      González Díaz, Rocío; Jiménez Rodríguez, María José; Krim, Hamid (2013)
      In the setting of persistent homology computation, a useful tool is the persistence barcode representation in which pairs ...
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      Persistent Homology for 3D Reconstruction Evaluation 

      Gutiérrez, Antonio; Monaghan, David S.; Jiménez Rodríguez, María José; O'Connor, Noel E. (2012)
      Space or voxel carving is a non-invasive technique that is used to produce a 3D volume and can be used in particular for ...
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      Incremental-Decremental Algorithm for Computing AT-Models and Persistent Homology 

      González Díaz, Rocío; Adrian, Ion; Jiménez Rodríguez, María José; Poyatos, Regina (2011)
      In this paper, we establish a correspondence between the incremental algorithm for computing AT-models [8,9] and the one ...
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      Well-Composed Cell Complexes 

      González Díaz, Rocío; Jiménez Rodríguez, María José; Medrano Garfia, Belén (2011)
      Well-composed 3D digital images, which are 3D binary digital images whose boundary surface is made up by 2D manifolds, ...
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      Integral operators for computing homology generators at any dimension 

      González Díaz, Rocío; Jiménez Rodríguez, María José; Medrano Garfia, Belén; Real Jurado, Pedro; Molina Abril, Helena (2008)
      Starting from an nD geometrical object, a cellular subdivision of such an object provides an algebraic counterpart from ...