January 2011
Intermediate to advanced
420 pages
12h 32m
English
Content preview from Practical Applications of Data Mining
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8.4 lInguIStIC varIableS 347
8.4 LINGUISTIC VARIABLES
Linguistic variables are variables whose values are not numbers but words
or phrases, as found in a sentence of natural language. Linguistic variables
are often used to embed fuzzy meaning into fuzzy queries. Since they carry
fuzzy meaning, the interpretation of any linguistic variable requires the iden-
tification and application of a fuzzy membership function such as those dis-
cussed in the previous section.
The specification of a linguistic variable involves primary terms, con-
nectives, negations, and hedges. Primary terms are the labels of a fuzzy set
associated with the meaning ...