What is classification?

Some articles on classification, classifications:

QAPF Diagram - Usage
... or volcanic rocks if modal mineralogical composition is not determined, instead the TAS classification (Total-Alkali-Silica) is used ... Therefore, provisional or field classifications (Figures 3 and 4) are used, which are simplified versions of Figures 1 and 2 ... This classification is used if rock sample has phaneritic texture (plutonic rocks) Figure 2 ...
Anatomical Therapeutic Chemical Classification System
... The Anatomical Therapeutic Chemical (ATC) Classification System is used for the classification of drugs ...
Naive Bayes Classifier - Introduction
... In 2004, analysis of the Bayesian classification problem has shown that there are some theoretical reasons for the apparently unreasonable efficacy of naive Bayes classifiers ... Still, a comprehensive comparison with other classification methods in 2006 showed that Bayes classification is outperformed by more current approaches, such as boosted trees or random forests ... data to estimate the parameters (means and variances of the variables) necessary for classification ...
Stellar Classification - Variable Star Classification
... There is a variable star classification scheme that encompasses existing stars that are classified in the spectra classification ...
Pterosaur - Evolution and Extinction - Classification
... For more details on this topic, see List of pterosaur classifications ... Classification of pterosaurs has historically been difficult, because there were many gaps in the fossil record ...

More definitions of "classification":

  • (noun): Restriction imposed by the government on documents or weapons that are available only to certain authorized people.