Data and Databases
Multivariate data consist of multiple measurements, observations, or responses obtained on a collection of selected variables. The types of variables usually encountered often depend upon those who collect the data (the domain experts), possibly together with some statistical colleagues; for it is these people who actively decide which variables are of interest in studying a particular phenomenon. In other circumstances, data are collected automatically and routinely without a research direction in mind, using software that records every observation or transaction made regardless of whether it may be important or not.
KeywordsData Warehouse Polyaromatic Hydrocarbon Structure Query Language Text Database Yale Face Database
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