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Fuzzy Set Theory

In: The SAGE Encyclopedia of Social Science Research Methods
Edited by: Michael S. Lewis-Beck, Alan Bryman & Tim Futing Liao
Subject:Research Methods
Keywords:set theory; set theory

Fuzzy set theory deals with sets or categories whose boundaries are blurry or “fuzzy.” For instance, an object is not necessarily just red or not red, it can be “reddish” or even a “warm green” (green with a tinge of red ...

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  Lewis-Beck, M. S., Bryman, A., & Liao, T. F. (2004). Fuzzy set theory. In The SAGE encyclopedia of social science research methods (Vol. 1, pp. 409-412). SAGE Publications, Inc., https://dx.doi.org/10.4135/9781412950589.n358
  
  Lewis-Beck, Michael S., Alan Bryman, and Tim F. Liao. "Fuzzy Set Theory." In The SAGE Encyclopedia of Social Science Research Methods, edited by Lewis-Beck, Michael S., Alan Bryman, and Tim F. Liao, 409-12. Thousand Oaks, CA: SAGE Publications, Inc., 2004. https://dx.doi.org/10.4135/9781412950589.n358.
  
  Lewis-Beck, M. S., Bryman, A. and Liao, T. F. 2004. Fuzzy Set Theory. In: Michael S. Lewis-Beck, Alan Bryman and Tim F. Liao Editors, 2004. The SAGE Encyclopedia of Social Science Research Methods, Thousand Oaks, CA: SAGE Publications, Inc. pp. 409-412 Available at: <https://dx.doi.org/10.4135/9781412950589.n358> [Accessed 5 Jul 2022].
  
  Lewis-Beck, Michael S., et al. "Fuzzy Set Theory." The SAGE Encyclopedia of Social Science Research Methods. Edited by Vol. 1. Thousand Oaks: SAGE Publications, Inc., 2004, pp. 409-12. SAGE Knowledge. 5 Jul 2022, doi: https://dx.doi.org/10.4135/9781412950589.n358.
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