Research on the Optimal Aggregation Method of Judgment Matrices Based on Spatial Steiner-Weber Point

Assessing Knowledge Quality Using Fuzzy MCDM Model

“…Quality is defined by the Oxford Dictionary as the degree of excellence of a thing; relative nature or kind or character of a thing; or class or grade of something determined by this [1]. Additionally, qualities need to be described using some attributes.…”

“…Fuzzy theory uses membership functions to express the degree of membership between components and sets. A fuzzy set A can be expressed as Equation (1).…”

“…Past studies mostly used the average value as the final group decision [26,[30][31][32][33]; however, average of opinion cannot accurately reflect the overall judgment. Therefore, Hsu and Chen proposed a similarity aggregation method (SAM) [34,35], and Lee developed an optimal aggregation method (OAM), to help obtain the consistence of fuzzy opinion [1,36]. Because OAM is an effective method for integrating expert opinions, this study adopts OAM to consolidate the opinions of experts.…”

“…(i) Let c = 1.5, m = 2, and u = max(U) − min(U) = 0.7, where the initial aggregated weight is as the weight of the first expert, i.e., W (0) = (1, 0, 0, 0, 0). Then, the aggregated opinion R (1) can be obtained using Equation ( 8), and R i is the opinion of an individual expert.…”

“…Enterprises are facing stiff global competition, and the best way to effectively lead competitors is to develop new products, new services, and new business models [1]. One of the ways to achieve this goal is to promote knowledge management.…”