Table 7:

Loss . | y^{ +}
. | y^{−}
. |
---|---|---|

RAMP | arg max_{y} π_{w} (y|x) − α(1 − BLEU_{+1}(y, ȳ)) | arg max_{y} π_{w} (y|x) + α(1 − BLEU_{+1}(y, ȳ)) |

RAMP1 | ŷ | arg max_{y} π_{w} (y|x) + α(1 − BLEU_{+1}(y, ȳ)) |

RAMP2 | arg max_{y} π_{w} (y|x) − α(1 − BLEU_{+1}(y, ȳ)) | ŷ |

PERC1 | ȳ | ŷ |

PERC2 | arg max_{y} BLEU_{+1} (y, ȳ) | ŷ |

Loss . | y^{ +}
. | y^{−}
. |
---|---|---|

RAMP | arg max_{y} π_{w} (y|x) − α(1 − BLEU_{+1}(y, ȳ)) | arg max_{y} π_{w} (y|x) + α(1 − BLEU_{+1}(y, ȳ)) |

RAMP1 | ŷ | arg max_{y} π_{w} (y|x) + α(1 − BLEU_{+1}(y, ȳ)) |

RAMP2 | arg max_{y} π_{w} (y|x) − α(1 − BLEU_{+1}(y, ȳ)) | ŷ |

PERC1 | ȳ | ŷ |

PERC2 | arg max_{y} BLEU_{+1} (y, ȳ) | ŷ |

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