Research Article
A Kriging Model-Based Expensive Multiobjective Optimization Algorithm Using R2 Indicator of Expectation Improvement
Table 1
The definition of test functions.
| | Name | Dimension | Boundary | Objective function | Comments on PF |
| | TEST1 | 2 | | | Convex, simple |
| | TEST2 | 2 | | | Convex, disconnected |
| | FON | 3 | | | Nonconvex |
| | ZDT1 | 5 | | | Convex |
| | ZDT2 | 5 | | | Nonconvex |
| | ZDT3 | 5 | | | Convex, disconnected |
| | DTLZ2 | 5 | | | Nonconvex |
| | DTLZ5 | 5 | | | Convex |
| | DTLZ7 | 5 | | | Disconnected |
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