- cluster variables
English-russian astronautics dictionary. - M.: Military Publishing house. Compiled by F. P. Suprun, K. V. Shirokov. 1964.
cluster variables
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Cluster algebra — Cluster algebras are a class of commutative rings introduced by Fomin and Zelevinsky (2002, 2003, 2007). A cluster algebra of rank n is an integral domain A, together with some subsets of size n called clusters whose union generates the… … Wikipedia
Cluster labeling — is closely related to the concept of text clustering. This process tries to select descriptive labels for the clusters obtained through a clustering algorithm such as Flat Clustering and Hierarchical Clustering. For example, a cluster of… … Wikipedia
Cluster analysis (in marketing) — Cluster analysis is a class of statistical techniques that can be applied to data that exhibit “natural” groupings. Cluster analysis sorts through the raw data and groups them into clusters. A cluster is a group of relatively homogeneous cases or … Wikipedia
Cluster Maritime — Pour les articles homonymes, voir Cluster. Concept économique anglo saxon, le cluster est un ensemble d informations et de services mis en commun au travers d une entité sur un territoire donné afin de créer un système qui ai un sens aussi bien… … Wikipédia en Français
Cluster-weighted modeling — In statistics, cluster weighted modeling (CWM) is an algorithm based approach to non linear prediction of outputs (dependent variables) from inputs (independent variables) based on density estimation using a set of models (clusters) that are each … Wikipedia
Cluster maritime — Pour les articles homonymes, voir Cluster. Concept économique anglo saxon, le cluster est un ensemble d informations et de services mis en commun au travers d une entité sur un territoire donné afin de créer un système qui ait un sens aussi bien… … Wikipédia en Français
cluster analysis — A form of multivariate analysis , of which the purpose is to divide a set of objects (such as variables or individuals), characterized by a number of attributes, into a set of clusters or classes, in such a way that the objects in a class are… … Dictionary of sociology
star cluster — Astron. a number of stars of common origin held together as a group by gravitational attraction. Cf. globular cluster, open cluster, stellar association. * * * ▪ astronomy Introduction either of two general types of stellar assemblages held… … Universalium
Globular cluster — s from the Sun and contains hundreds of thousands of stars. [cite news coauthors =The Hubble Heritage team url = http://hubblesite.org/newscenter/newsdesk/archive/releases/1999/26/ title = Hubble Images a Swarm of Ancient Stars work = HubbleSite… … Wikipedia
Open cluster — Galactic cluster redirects here. See also galaxy groups and clusters NGC 265, an open star cluster in the Small Magellanic Cloud An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and… … Wikipedia
RR Lyrae variable — RR Lyrae variables are periodic variable stars, commonly found in globular clusters, and often used as standard candles to measure galactic distances. This type of variable is named after the prototype, the variable star RR Lyrae in the… … Wikipedia
