Title of paper:
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Pearson's coefficient between intuitionistic fuzzy sets
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Author(s):
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Eulalia Szmidt
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Systems Research Institute - Polish Academy of Sciences, ul. Newelska 6, 01-447 Warsaw, Poland
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szmidt@ibspan.waw.pl
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Janusz Kacprzyk
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Systems Research Institute - Polish Academy of Sciences, ul. Newelska 6, 01-447 Warsaw, Poland
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kacprzyk@ibspan.waw.pl
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Paweł Bujnowski
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Systems Research Institute - Polish Academy of Sciences, ul. Newelska 6, 01-447 Warsaw, Poland
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Presented at:
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15th ICIFS, Burgas, 11-12 May 2011
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Published in:
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Conference proceedings, "Notes on IFS", Volume 17 (2011) Number 2, pages 25—34
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Download:
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PDF (210 Kb, File info)
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Abstract:
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The correlation coefficient (Pearson's [math]\displaystyle{ r }[/math]) is one of the most frequently used tools in statistics. In this paper we discuss a correlation coefficient between Atanassov's intuitionistic fuzzy sets (A-IFSs). We have constructed the coefficient so it provides the strength of the relationship between A-IFSs and also shows if the considered sets are positively or negatively correlated. Next, the proposed correlation coefficient takes into account not only the amount of information related to the A-IFS data (expressed by the membership and non-membership values) but also the reliability of the data expressed by a so-called hesitation margin.
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Keywords:
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Intuitionistic fuzzy sets, Correlation coefficient, Hesitation margin
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AMS Classification:
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03E72
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References:
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- http://archive.ics.uci.edu/ml/machine-learning-databases/iris/iris.data
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