impurity
1
7.4
- noun
- /ɪmˈpjʊrɪti/
- Specialized
:
impureza
- It's not a question of ideological purity or impurity; it's a pragmatic necessity, pure and simple.
Examples
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After the cells are sliced, they are doped with impurities such as boron to produce an electric field across each wafer.
Academic text (1994) -
I love the impurities.
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So this is basically using an impurity as a flow, a tracer of the flow.
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The themes here are those of power and loss of power, of purity and impurity, and of collective and individual commitments.
Academic text (1996) -
Adam is one of her victims, for he fathers "many spirits and demons, through the force of the impurity which he had absorbed" from Lilith.
Blog text (23) -
By returning to the primary sources used by Hudson, Churchill shows clearly that the "purity-impurity" model is highly visible in even the earliest European writings, reflecting a long-standing European way of thinking about Native peoples.
Academic text (1996) -
Planar technology is so named because the devices are made by diffusing or ion-implanting impurities into the plane of the silicon wafer, with insulators and wires being deposited in successive layers.
Academic text (1997) -
In machine learning, impurity is calculated to assess how mixed the labels are in a dataset before splitting it.
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To evaluate the effectiveness of the decision tree, we calculated the impurity of the node using Gini impurity.
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Entropy is a common method for measuring impurity when determining the best way to split data in a classification problem.
Synonyms
A state when something has dirty or unwanted things in it
Antonyms
How Mixed
Surface Forms
Morphology
Etymology
Impurity comes from the Latin parts in- 'not' and purus 'pure', and in data work it keeps that idea: it measures how 'not pure' a group is. If every item in the group has the same label it is 'pure', but if labels are mixed the group is 'impure', so impurity tells you how mixed the data is.