منابع مشابه
Gestion des bases de données biologiques sur grilles de calculs
Since the beginning of the eighties, biological databases have considerably grown. A request on the bases which took only a few minutes can now need several days. Meanwhile, the research community in bioinformatics developped itself and specialised laboratories were created all around the world. Collaboration and exchanges between teams that were sometimes geographically very far from each othe...
متن کاملCHAPITRE X Les ensembles constructibles
Résumé. • De même qu’on introduit le sous-corps premier d’un corps K comme la clôture de {0, 1} par les opérations de corps, on introduit un plus petit modèle intérieur L d’un modèle de ZF comme clôture des ordinaux par les opérations de Gödel. Les éléments de L sont appelés les ensembles constructibles. • La propriété d’être un ensemble constructible est absolue, c’est-à-dire préservée par pas...
متن کاملChapitre 8: Simulation for Product Driven Systems
Due to globalisation, companies have to become more and more agile in order to face demand fluctuations and growing customisation needs. Indeed, the mass production market moves to a mass customization one, which could be defined as the production of a wide variety of end products at a low unit cost. This market typology evolution implies to ensure a quick answer to customers needs. The main pr...
متن کامل3 Département de Sciences Biologiques,
Farach, Kannan and Warnow (1995) defined Problem MCA (matrix completion to additive) and proved it to be NP-complete: given a partial dissimilarity d on a finite set X, does there exist a tree metric extending d to all pairs of elements of X. We use a previously described simple method of phylogenetic reconstruction, and its extension to partial dissimilarities, to characterize some classes of ...
متن کاملType-II Optimal Polynomial Bases
In the 1990s and early 2000s several papers investigated the relative merits of polynomial-basis and normal-basis computations for F2n . Even for particularly squaring-friendly applications, such as implementations of Koblitz curves, normal bases fell behind in performance unless a type-I normal basis existed for F2n . In 2007 Shokrollahi proposed a new method of multiplying in a type-II normal...
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ژورنال
عنوان ژورنال: Revue Forestière Française
سال: 1995
ISSN: 1951-6827,0035-2829
DOI: 10.4267/2042/26717