idiom
Garbage In, Garbage Out
GAR-bij in GAR-bij owt
/ˈɡɑːrbɪdʒ ɪn ˈɡɑːrbɪdʒ aʊt/Listen
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Syllable breakdown
garbageingarbageout
Dictionary meaning
Poor quality inputs to a system will inevitably produce poor quality outputs; a computing and data science maxim
History and origin
Coined in the early days of computing; popularised as 'GIGO' in 1960s programming culture
Examples
- The model's poor accuracy was no surprise — garbage in, garbage out applies when training data is mislabelled.
- Garbage in, garbage out is the first principle every data engineer should internalise.
Synonyms: GIGO
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