Real projective lineIn geometry, a real projective line is a projective line over the real numbers. It is an extension of the usual concept of a line that has been historically introduced to solve a problem set by visual perspective: two parallel lines do not intersect but seem to intersect "at infinity". For solving this problem, points at infinity have been introduced, in such a way that in a real projective plane, two distinct projective lines meet in exactly one point.
Programmation logiqueLa programmation logique est une forme de programmation qui définit les applications à l'aide : d'une base de faits : ensemble de faits élémentaires concernant le domaine visé par l'application, d'une base de règles : règles de logique associant des conséquences plus ou moins directes à ces faits, d'un moteur d'inférence (ou démonstrateur de théorème ) : exploite ces faits et ces règles en réaction à une question ou requête. Cette approche se révèle beaucoup plus souple que la définition d'une succession d'instructions que l'ordinateur exécuterait.
Projectively extended real lineIn real analysis, the projectively extended real line (also called the one-point compactification of the real line), is the extension of the set of the real numbers, , by a point denoted ∞. It is thus the set with the standard arithmetic operations extended where possible, and is sometimes denoted by or The added point is called the point at infinity, because it is considered as a neighbour of both ends of the real line. More precisely, the point at infinity is the limit of every sequence of real numbers whose absolute values are increasing and unbounded.
Multiple sequence alignmentMultiple sequence alignment (MSA) may refer to the process or the result of sequence alignment of three or more biological sequences, generally protein, DNA, or RNA. In many cases, the input set of query sequences are assumed to have an evolutionary relationship by which they share a linkage and are descended from a common ancestor. From the resulting MSA, sequence homology can be inferred and phylogenetic analysis can be conducted to assess the sequences' shared evolutionary origins.
Real estate developmentReal estate development, or property development, is a business process, encompassing activities that range from the renovation and re-lease of existing buildings to the purchase of raw land and the sale of developed land or parcels to others. Real estate developers are the people and companies who coordinate all of these activities, converting ideas from paper to real property. Real estate development is different from construction or housebuilding, although many developers also manage the construction process or engage in housebuilding.
Architecture orientée servicesL'architecture orientée services ou AOS (calque de l'anglais service-oriented architecture, SOA) est une forme d'architecture de médiation qui est un modèle d'interaction applicative qui met en œuvre des services (composants logiciels) : avec une forte cohérence interne (par l'utilisation d'un format d'échange pivot, le plus souvent XML ou JSON) ; des couplages externes « lâches » (par l'utilisation d'une couche d'interface interopérable, le plus souvent un service web WS-*).
Droite réelle achevéeEn mathématiques, la droite réelle achevée désigne l'ensemble ordonné constitué des nombres réels auxquels sont adjoints deux éléments supplémentaires : un plus grand élément, noté +∞ et un plus petit élément, noté –∞. Elle est notée [–∞, +∞], R ∪ {–∞, +∞} ou (notation toutefois ambiguë, car la barre signifie généralement "complémentaire" en théorie des ensembles, ou "adhérence" en topologie). Cet ensemble est très utile en analyse, notamment pour généraliser les formules et théorèmes sur les limites sans avoir à effectuer une disjonction des cas, et dans certaines théories de l'intégration.
Structural alignmentStructural alignment attempts to establish homology between two or more polymer structures based on their shape and three-dimensional conformation. This process is usually applied to protein tertiary structures but can also be used for large RNA molecules. In contrast to simple structural superposition, where at least some equivalent residues of the two structures are known, structural alignment requires no a priori knowledge of equivalent positions.
Service webUn service web (ou service de la toile) est un protocole d'interface informatique de la famille des technologies web permettant la communication et l'échange de données entre applications et systèmes hétérogènes dans des environnements distribués. Il s'agit donc d'un ensemble de fonctionnalités exposées sur internet ou sur un intranet, par et pour des applications ou machines, sans intervention humaine, de manière synchrone ou asynchrone. Le protocole de communication est défini dans le cadre de la norme SOAP dans la signature du service exposé (WSDL).
Service-oriented modelingService-oriented modeling is the discipline of modeling business and software systems, for the purpose of designing and specifying service-oriented business systems within a variety of architectural styles and paradigms, such as application architecture, service-oriented architecture, microservices, and cloud computing. Any service-oriented modeling method typically includes a modeling language that can be employed by both the "problem domain organization" (the business), and "solution domain organization" (the information technology department), whose unique perspectives typically influence the service development life-cycle strategy and the projects implemented using that strategy.
