Semiotic information theory refers to either the application of the mathematical tools of information theory to the study of semiotics or to alternatives to Claude Shannon's Information Theory based on semiotics.
Semioticians Doede Nauta and Winfried Nöth both see Charles Sanders Pierce as having created a theory of information in his works on semiotics.[1][2] Nauta defined semiotic information theory as the study of "the internal processes of coding, filtering, and information processing." [3]