This paper establishes a trust model based on fuzzy set. It’s a method based on subject uncertain theory. Adopting the fuzzy comprehensive evaluation, it computes direct trust value more diversiform and flexible. In the calculation of indirect recommended trust value it brings in the similarity coefficient that can find the peers who can provide more valuable information.
Wen, Qi, "A Fuzzy Set Based Network Trust Model in P2P Environment" (2013). WHICEB 2013 Proceedings. 60.