On-Line Signature Evaluation Using Fuzzy Set Theory

In this paper we propose a novel algorithm for a signature evaluation system using fuzzy set theory. It is possible to obtain an intermediate value of a natural language expression by using fuzzy set theory that allows a state in the middle. Accordingly, it becomes possible to realize an algorithm such that an ambiguity is able to be judged valid or not. The quality of signature verification reference will be able to be improved. It makes the risk of on-line signature verification less.