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contamination

contamination

3 6.5
Wrong or repeated data added to a dataset that gives wrong results
  • noun
  • /kənˌtæmɪˈneɪʃən/
  • Specialized
translation icon : contaminación de datos
  • With the corrected dataset by removing the source of data contamination, similar performances were observed for RF and SVM (Fig. 10c).
  • cross contamination
  • Hg contamination

And so there's going to be sort of some contamination of political slant with other differences, OK.

Examples

  • The results likely overestimated the occurrence of virus contamination in groundwater as well as the resulting public health risks.

    Academic text (2002)
  • An additional source of contamination can be the required transfer of impinger solutions before and after sampling.

    Academic text (2004)
  • We did that to avoid contamination by socially desirable responses as much as possible.

    Academic text (1999)
  • Such a study would risk contamination from extraneous variables whose effect cannot be removed.

    Academic text (1998)
  • The other three false-positive results were probably due to PCR contamination since they were not confirmed on repeat testing.

    Academic text (1992)
  • Many aspects of Hg contamination have been evaluated during recent decades.

    Academic text (2009)
  • The test of the explosive substance yielded a false positive result due to contamination caused by previous testing.

  • A limitation of in-house control groups is the possibility of control group contamination or treatment diffusion.

    Academic text (2012)
  • According to Mair, an independent, non-Chinese lab determined that the Fudan results were likely a product of contamination and thus invalid.

    Academic text (2009)
  • The study found contamination in the dataset, leading to inaccurate predictions about user behavior.

Synonyms

poisoning
vscontamination
  • Specialized
4 9.3

Deliberately adding false items to training data to make a model learn wrong things

is introduced by accident or error rather than as a planned malicious act

Antonyms

15 4.6

Making something clean by removing unwanted or harmful substances

4 3.9

Making something clean by removing dirt

Compounds

dust contamination
  • Specialized
4.6

Small bits of dust that make a surface dirty or unsafe

How Contaminated

pollution
255 2.7
contamination
  • Specialized
3 6.5
impurity
19 5.1
purity
25 3.1

Surface Forms

contamination singular

Morphology

contamination = contaminate (semi-transparent) = contaminate + ion

Formally derived from 'contaminate' + '-ion', but this sense is a domain-specific metaphorical extension to data and may not be fully predictable to learners unfamiliar with the technical usage.

Etymology

Contamination comes from the Latin contaminare, from con- 'together' and a root meaning 'touch' like in tangible. That's why in data work 'contamination' means the wrong data have been mixed or 'touched' into a dataset, making results wrong.