Table 6 Data structure of weight matrix analysis.

From: Optimization design of hump phenomenon of low specific speed centrifugal pump based on CFD and orthogonal test

First layer

Objective function

Second layer

\(A_{1}\)

…

…

\(A_{l}\)

Third layer

\(A_{11}\)

…

\(A_{1m}\)

…

…

\(A_{l1}\)

…

\(A_{lm}\)