Hedge algebras, the semantics of vague linguistic information and application prospective

Abstract

The report aims to show that hedge algebras model actually the proper qualitative semantics of words of linguistic vanables based on the argument that the inherent qualitative semantics of words should be expressed through the order relationships between the words in their respective variable domains induced by the word semantics, as it is required by decision making of human daily lives. This makes the hedge algebra based approach to the word semantics quite different to the existing approaches and become the only approach that can immediately deal with the natural qualitative semantics of words. We explain clearly and systematically distinguished features and properties of this approach to show that these seem to make the approach to be sound and to ensure its effectiveness in mitial applications tmder consideration. This approach seems to be promising for development of hedge algebra-based method to solve problems in various application fields. For illustration, we will give a short overview of effective results of the initial applications of hedge algebras in the fields of knowledge based systems and of fuzzy control.