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purity

purity

2 7.5
A measure of how many items in a group belong to the same type
  • noun
  • /ˈpjʊrɪti/
  • Specialized
translation icon : pureza
  • In addition, single crystals have made possible the measurement of single-phase, low-strain, high-purity samples from virtually the onset of research on these compounds.
  • high purity

Examples

  • Lambda Physik's ScanMatePro pulsed dye laser series delivers narrow linewidth and high spectral purity

    Academic text (2006)
  • The analysis showed a high level of purity in the data cluster, indicating that most samples belonged to the same class.

  • So this is high purity silicon, high purity and this is low purity silicon liquid.

  • These range from fifty to ninety percent purity.

  • The purpose of the study was to determine the factorial purity of the newly developed tests, in relation to the other instruments previously utilized.

    Academic text (1992)
  • Manufactures ultra-clean valves and fittings for use in semiconductor process equipment and high-purity gas delivery systems.

    Academic text (1997)
  • An ISO 9002 certified American manufacturer of high-purity materials for sputtering and evaporation.

    Academic text (1997)
  • There, the CFCs are "reclaimed" through a distillation process which restores them to the purity of new CFCs, then packaged and sold.

    Academic text (1996)
  • To achieve the best results, it is important to use a data set with high purity to ensure accurate machine learning outcomes.

  • In machine learning, the purity of the classification affects how well the model performs on new data.

Synonyms

pureness
vspurity
3.7

Being not mixed with anything else

measures how homogeneous a data subset is regarding class labels

Antonyms

348 3.5

A range of different people or things

The presence of different kinds of things or people in a group

impurity
  • Specialized
1 7.4

A number showing how mixed different groups are in a set of data

How Pure

purity
  • Specialized
2 7.5
homogeneity
6 7.6
impurity
  • Specialized
1 7.4

Surface Forms

purity singular
purities plural

Morphology

purity = pure (semi-transparent) = pure + ity

Formally derived from 'pure' meaning 'unmixed', but the technical notion of 'homogeneity with respect to a class label' requires domain knowledge and is not fully predictable for an average learner.

Etymology

Purity comes from the Latin purus 'not mixed', the same root as pure and purify. In data work, a group has high purity when it is almost all one kind and not mixed with other types.