Garbage in, garbage out: Difference between revisions

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imported>Kvng
 
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{{Redirect|GIGO|the protein subunits|Gi/Go|the Japanese arcade chain GENDA GiGO|Sega World}}
{{Redirect|GIGO|the protein subunits|Gi/Go|the Japanese arcade chain GENDA GiGO|Sega World}}


In [[computer science]], '''garbage in, garbage out''' ('''GIGO''') is the concept that flawed, biased or poor quality ("garbage") information or [[input (computer science)|input]] produces a result or [[input/output|output]] of similar ("garbage") quality. The adage points to the need to improve data quality in, for example, programming. '''Rubbish in, rubbish out''' ('''RIRO''') is an alternate wording.<ref>{{Cite web |last=Demming |first=Anna |date=2019-06-30 |title=Machine learning collaborations accelerate materials discovery |url=https://physicsworld.com/a/machine-learning-collaborations-accelerate-materials-discovery/ |access-date=2019-09-18 |website=Physics World |language=en-GB}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=tb43AAAAQBAJ&q=RIRO&pg=PP1|title=The Art of Creative Thinking: How to be Innovative and Develop Great Ideas|last=Adair|first=John|date=2009-02-03|publisher=Kogan Page Publishers|isbn=9780749460082|language=en|author-link=John Adair (author)}}</ref>
In [[computer science]], '''garbage in, garbage out''' ('''GIGO''') is the concept that flawed, biased or poor quality (''garbage'') information or [[input (computer science)|input]] produces a result or [[input/output|output]] of similar ("garbage") quality. The saying points to the need to improve data quality in, for example, programming. '''Rubbish in, rubbish out''' ('''RIRO''') is an alternate wording.<ref>{{Cite web |last=Demming |first=Anna |date=2019-06-30 |title=Machine learning collaborations accelerate materials discovery |url=https://physicsworld.com/a/machine-learning-collaborations-accelerate-materials-discovery/ |access-date=2019-09-18 |website=Physics World |language=en-GB}}</ref><ref>{{Cite book|url=https://books.google.com/books?id=tb43AAAAQBAJ&q=RIRO&pg=PP1|title=The Art of Creative Thinking: How to be Innovative and Develop Great Ideas|last=Adair|first=John|date=2009-02-03|publisher=Kogan Page Publishers|isbn=9780749460082|language=en|author-link=John Adair (author)}}</ref>


The principle applies to all logical [[Argumentation theory|argumentation]]: [[soundness]] implies [[validity (logic)|validity]], but validity does not imply soundness.
The principle applies to all logical [[Argumentation theory|argumentation]]: [[soundness]] implies [[validity (logic)|validity]], but validity does not imply [[soundness]]. In other words, assumptions matter: even if someone is perfectly logical, when they start with false assumptions, they can get a false result.


==History==
==History==
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|url=https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/508444/HoeghOsaka_Flyer.pdf |archive-url=https://web.archive.org/web/20160325074446/https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/508444/HoeghOsaka_Flyer.pdf |archive-date=2016-03-25 |url-status=live|title=SAFETY FLYER|author=MAIB|date=2016-03-17|publisher=[[Marine Accident Investigation Branch|MAIB]]|access-date=2016-03-19}}</ref>}}
|url=https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/508444/HoeghOsaka_Flyer.pdf |archive-url=https://web.archive.org/web/20160325074446/https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/508444/HoeghOsaka_Flyer.pdf |archive-date=2016-03-25 |url-status=live|title=SAFETY FLYER|author=MAIB|date=2016-03-17|publisher=[[Marine Accident Investigation Branch|MAIB]]|access-date=2016-03-19}}</ref>}}


The term may have been derived from [[LIFO (computing)|last-in, first-out]] (LIFO) or [[first-in, first-out]] (FIFO).<ref name="worldwidewords">{{cite web|url=http://www.worldwidewords.org/qa/qa-gar1.htm|title=Garbage in, garbage out|last=Quinion|first=Michael|date=5 November 2005|work=World Wide Words|access-date=2012-02-26}}</ref>
The term may have been derived from [[LIFO (computing)|last-in, first-out]] (LIFO) or [[FIFO (computing and electronics)|first-in, first-out]] (FIFO).<ref name="worldwidewords">{{cite web|url=http://www.worldwidewords.org/qa/qa-gar1.htm|title=Garbage in, garbage out|last=Quinion|first=Michael|date=5 November 2005|work=World Wide Words|access-date=2012-02-26}}</ref>


==Uses==
==Uses==
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* [[Data processing inequality]]
* [[Data processing inequality]]
* [[FINO]]
* [[FINO]]
* [[Model collapse]]
* [[No free lunch theorem]]
* [[No free lunch theorem]]
* [[Standard error]]
* [[Standard error]]