Symbol | Meaning |

${u}_{i}$ | Evaluation index |

${h}_{i}$ | Evaluation level |

$R$ | Fuzzy matrix |

$A$ | Weight vector |

$F$ | Ultimate weight vector |

$D$ | Judgement matrix |

${m}_{i}$ | Factor in normalized F |

${C}_{p}$ | Cohesion point |

${E}_{p}$ | Economy point |

${P}_{p}$ | Politics point |

${S}_{p}$ | Social point |

UE | Ultimate Evaluation |

${g}_{1}$ | Tipping point 1 |

${g}_{2}$ | Tipping point 2 |

$\widehat{{y}_{t+1}}$ | The average of ${y}_{t}~{y}_{t-3}$ |

${y}_{t}$ | The time series variable |

S | The prediction standard deviation |

a% | The contribution rate of GDP |

W | The Somalia’s cost of intervention |