metric multidimensional scaling

См. также в других словарях:

• Multidimensional scaling — (MDS) is a set of related statistical techniques often used in information visualization for exploring similarities or dissimilarities in data. MDS is a special case of ordination. An MDS algorithm starts with a matrix of item–item similarities,… …   Wikipedia

• Generalized multidimensional scaling — (GMDS) is an extension of metric multidimensional scaling, in which the target space is non Euclidean. In case when the dissimilarities are distances on a surface and the target space is another surface, GMDS allows finding the minimum distortion …   Wikipedia

• multi-dimensional scaling — Often, a set of data (for example attitude items) cannot be represented in one dimension, such as in a unidimensional scale or factor analysis. The items may then be modified or selected, so that they can be so represented (as in item analysis… …   Dictionary of sociology

• Escalamiento multidimensional — Saltar a navegación, búsqueda El escalado multidimensional (EMD) (en inglés, multidimensional scaling MDS) se refiere al conjunto de técnicas estadísticas utilizada habitualmente en marketing y ciencias sociales para la visualización y… …   Wikipedia Español

• Nonlinear dimensionality reduction — High dimensional data, meaning data that requires more than two or three dimensions to represent, can be difficult to interpret. One approach to simplification is to assume that the data of interest lies on an embedded non linear manifold within… …   Wikipedia

• Isomap — In statistics, isomap is one of several widely used low dimensional embedding methods, where geodesic distances on a weighted graph are incorporated with the classical scaling (metric multidimensional scaling). It is used for computing a quasi… …   Wikipedia

• Force-based algorithms — Force based or force directed algorithms are a class of algorithms for drawing graphs in an aesthetically pleasing way. Their purpose is to position the nodes of a graph in two dimensional or three dimensional space so that all the edges are of… …   Wikipedia

• Ordination (statistics) — In multivariate analysis, ordination is a method complementary to data clustering, and used mainly in exploratory data analysis (rather than in hypothesis testing). Ordination orders objects that are characterized by values on multiple variables… …   Wikipedia

• NMDS — may refer to: National Minimum Data Set for Social Care non metric multidimensional scaling Nursing Minimum Data Set New Mexican Disaster Squad This disambiguation page lists articles associated with the same title. If an …   Wikipedia

• Coleoptera — Pour les articles homonymes, voir Coléoptère (homonymie). Coléoptères …   Wikipédia en Français

• Lisière — Une lisière est une limite entre deux milieux, dont l un est généralement forestier, par exemple entre une forêt et une prairie, une clairière, une plage. La lisière présente des conditions climatiques et écologiques particulières. Elle est pour… …   Wikipédia en Français