| Notations |
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| Symbol | Definition |
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| ${\mathop{o}\limits^{\wedge }}_{1},{\mathop{o}\limits^{\wedge }}_{2}$ | Convex hull | | ${O}_{1},{O}_{2}$ | Object | | $S$ | Point set | | $P,{P}^{{\prime} }$ | Convex polygon | | ${P}_{1},{P}_{2},{P}_{3},{P}_{4},{P}_{i}$ | Convex hull point | | $N$ | Data size | | $M$ | Solution number | | $\tilde{N},\tilde{M}$ | Sample data size and solutions | | P(x),$\tilde{P}(x)$ | Cumulative distribution function | | ϵ | failure rate | | ${v}_{0},{v}_{1}$ | Coordinate values | | Convex hull point | | $k$ | A copy to store convex hull point values | | ${M}_{p}$ | The number of convex hull point |
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