LIP6 1998/047: Rapport de Recherche
LIP6 /
LIP6 research
reports
71 pages - Décembre/December 1998 -
French document.
PostScript : 502 Ko /Kb
Contact : par mail / e-mail
Thème/Team: Systèmes d'Aide à la Décision et à la Formation
Titre français : Assignation de fibres optiques pour la spectroscopie multi-objets
Titre anglais : Fiber-to-object assignment in multi-object spectroscopy
Abstract : Fiber-to-Object Assignment Problem comes from Astronomy. This geometrical and combinatorial problem arranges the maximum of segments -- or rectangles -- in the plane without crossovers. In order to solve this problem, we have recursively built a series of heuristic algorithms that converge on a maximal solution. Anyway the first elements of the series give quickly very good results. They can be improved by post-optimization heuristics based on the same heuristics. The good results given by these algorithms enables the search of the exact solution. Hence it shows that the heuristics are able to reach the best solution within a few minutes.
Key-words : Heuristics, Optimization, Combinatorial analysis, Astronomy
Publications internes LIP6 1998 / LIP6 research reports 1998