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Classification is the activity of assigning objects to some pre-existing classes or categories. This is distinct from the task of establishing the classes themselves (for example through cluster analysis). [1] Examples include diagnostic tests, identifying spam emails and deciding whether to give someone a driving license.
Pragmatic classification (and functional [40] and teleological classification) is the classification of items which emphasis the goals, purposes, consequences, [41] interests, values and politics of classification. It is, for example, classifying animals into wild animals, pests, domesticated animals and pets.
Categorization is a type of cognition involving conceptual differentiation between characteristics of conscious experience, such as objects, events, or ideas.It involves the abstraction and differentiation of aspects of experience by sorting and distinguishing between groupings, through classification or typification [1] [2] on the basis of traits, features, similarities or other criteria that ...
The former decision is original classification. A great majority of classified documents are created by derivative classification. For example, if one piece of information, taken from a secret document, is put into a document along with 100 pages of unclassified information, the document, as a whole, will be secret.
On 19 July 2011, the National Security (NS) classification marking scheme and the Non-National Security (NNS) classification marking scheme in Australia was unified into one structure. As of 2018, the policy detailing how Australian government entities handle classified information is defined in the Protective Security Policy Framework (PSPF).
Bloom's taxonomy is a framework for categorizing educational goals, developed by a committee of educators chaired by Benjamin Bloom in 1956. It was first introduced in the publication Taxonomy of Educational Objectives: The Classification of Educational Goals.
An example is Lithobates (Aquarana) catesbeianus, which designates a species that belongs to the genus Lithobates and the subgenus Aquarana. [15] A subspecies has a name composed of three parts (a trinomial name or trinomen): generic name + specific name + subspecific name; for example Canis lupus italicus. As there is only one possible rank ...
In binary classification, a better understood task, only two classes are involved, whereas multiclass classification involves assigning an object to one of several classes. [8] Since many classification methods have been developed specifically for binary classification, multiclass classification often requires the combined use of multiple ...