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Warren, McCain, and Obama Needed Fuzzy Sets at Presidential Forum
Author(s) -
Ashu M. G. Solo
Publication year - 2012
Publication title -
advances in fuzzy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.38
H-Index - 19
eISSN - 1687-711X
pISSN - 1687-7101
DOI - 10.1155/2012/319718
Subject(s) - presidential system , fuzzy logic , set (abstract data type) , fuzzy set , moderation , ask price , sociology , computer science , mathematical economics , epistemology , artificial intelligence , mathematics , political science , law , philosophy , politics , economics , machine learning , economy , programming language
During a presidential forum in the 2008 US presidential campaign, the moderator, Pastor Rick Warren, wanted Senator John McCain and then-Senator Barack Obama to define rich with a specific number. Warren wanted to know at what specific income level a person goes from being not rich to rich. The problem with this question is that there is no specific income at which a person makes the leap from being not rich to being rich. This is because rich is a fuzzy set, not a crisp set, with different incomes having different degrees of membership in the rich fuzzy set. Fuzzy logic is needed to properly ask and answer Warren's question about quantitatively defining rich. An imprecise natural language word like rich should be considered to have qualitative definitions, crisp quantitative definitions, and fuzzy quantitative definitions.

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