Question

What is the term used to refer to variables that take non-numerical as input?

(a) String variables

(b) Character variables

(c) Linguistic variables

(d) Morphological variables

This question was posed to me by my school teacher while I was bunking the class.

This is a very interesting question from Techniques topic in division Cognitive Techniques of Cognitive Radio

Answer 1

Correct option is (c) Linguistic variables

For explanation: Linguistic variables are assigned non-numerical values to aid the representation of facts and rules. For example, a linguistic variable may take “hot” and “cold” as input. In order to take advantage of the scale offered by fuzzy logic, additional words such as “rather” or “somewhat” may be used.