SVis: A computational steering visualization environment for surface structure determination

Hernando Vieites, Juan Bautista and Martinez Mateo, Jesus and Martín Ayuso, Vicente and López Fagúndez, Mª Francisca and Martín Gago, José Angel (2009). SVis: A computational steering visualization environment for surface structure determination. In: "Proceedings Second International Conference in Visualisation VIZ 2009", 15/07/2009 - 17/07/2009, Barcelona. ISBN 978-0-7695-3734-4. pp. 36-39. https://doi.org/10.1109/VIZ.2009.21.

Description

Title: SVis: A computational steering visualization environment for surface structure determination
Author/s:
  • Hernando Vieites, Juan Bautista
  • Martinez Mateo, Jesus
  • Martín Ayuso, Vicente
  • López Fagúndez, Mª Francisca
  • Martín Gago, José Angel
Item Type: Presentation at Congress or Conference (Article)
Event Title: Proceedings Second International Conference in Visualisation VIZ 2009
Event Dates: 15/07/2009 - 17/07/2009
Event Location: Barcelona
Title of Book: Visualisation, 2009. VIZ '09. Second International Conference in
Date: 2009
ISBN: 978-0-7695-3734-4
Subjects:
Freetext Keywords: Computational steering, Visualization systems and Software, Graphical User Interfaces, Dirección computacional, Sistemas de visualización y Software, Interfaces de usuario gráficas.
Faculty: Facultad de Informática (UPM)
Department: Arquitectura y Tecnología de Sistemas Informáticos
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The arrangement of atoms at the surface of a solid accounts for many of its properties: Hardness, chemical activity, corrosion, etc. are dictated by the precise surface structure. Hence, finding it, has a broad range of technical and industrial applications. The ability to solve this problem opens the possibility of designing by computer materials with properties tailored to specific applications. Since the search space grows exponentially with the number of atoms, its solution cannot be achieved for arbitrarily large structures. Presently, a trial and error procedure is used: an expert proposes an structure as a candidate solution and tries a local optimization procedure on it. The solution relaxes to the local minimum in the attractor basin corresponding to the initial point, that might be the one corresponding to the global minimum or not. This procedure is very time consuming and, for reasonably sized surfaces, can take many iterations and much effort from the expert. Here we report on a visualization environment designed to steer this process in an attempt to solve bigger structures and reduce the time needed. The idea is to use an immersive environment to interact with the computation. It has immediate feedback to assess the quality of the proposed structure in order to let the expert explore the space of candidate solutions. The visualization environment is also able to communicate with the de facto local solver used for this problem. The user is then able to send trial structures to the local minimizer and track its progress as they approach the minimum. This allows for simultaneous testing of candidate structures. The system has also proved very useful as an educational tool for the field.

More information

Item ID: 19133
DC Identifier: http://oa.upm.es/19133/
OAI Identifier: oai:oa.upm.es:19133
DOI: 10.1109/VIZ.2009.21
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5230705&tag=1
Deposited by: Memoria Investigacion
Deposited on: 17 Sep 2013 16:03
Last Modified: 21 Apr 2016 17:22
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