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. 2026 Jun 16;6:1808077. doi: 10.3389/frhs.2026.1808077

Figure 5.

Three-dimensional scatter plot displaying data points colored by UHC Coverage Level, with axes labeled UHC Coverage, Equity (one minus Gini), and Resilience Index. Color gradient corresponds to UHC Coverage, increasing from purple to yellow.

Pareto frontier for multi-objective optimization. Source: ε-constraint method with 1,000 iterations. Each point represents a Pareto-optimal solution trading off between UHC coverage, equity, and resilience.