Rao DISC-based similarity coefficient: a measure of similarity with respect to feature differences
In this paper, I defined a similarity coefficient, called Rao DISC-based similarity coefficient (DbSC), which takes into consideration feature differences as a factor of measuring similarity. Such coefficient was based from Rao dissimilarity coefficient (DISC) and diversity coefficient (DIVC) which are mostly applicable to ecology. The performance of Rao DbSC was compared with the existing similarity coefficients using three different data sets. Principal coordinate analysis (PCoA) and Spearman's rank correlation were made to demonstrate how Rao DbSC differs from other existing similarity coefficients. The obtained results gave emphasis on the relevance of considering the differences among features when comparing samples. Generally, this paper has illustrated the possibility of taking feature differences through some notion of distance as basis for determining similarity between samples.
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Volume (Year): 2 (2010)
Issue (Month): 2 ()
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