Looking for a Needle in a Haystack: A Comprehensive Study of Hallucinations in Neural Machine Translation EACL

Nuno M. Guerreiro | Elena Voita | André Martins |

Findings of the WMT 2023 Shared Task on Quality Estimation WMT

Frederic Blain | Chrysoula Zerva | Ricardo Ribeiro | Nuno M. Guerreiro | Diptesh Kanojia | José G. C. de Souza | Beatriz Silva | Tânia Vaz | Yan Jingxuan | Fatemeh Azadi | Constantin Orasan | André Martins |

Scaling up CometKiwi: Unbabel-IST 2023 Submission for the Quality Estimation Shared Task WMT

Ricardo Rei | Nuno M. Guerreiro | José Pombal | Daan van Stigt | Marcos Treviso | Luisa Coheur | José G. C. de Souza | André Martins |

Hallucinations in Large Multilingual Translation Models TACL

Nuno M. Guerreiro | Duarte M. Alves | Jonas Waldendorf | Barry Haddow | Alexandra Birch | Pierre Colombo | André F. T. Martins |

Optimal Transport for Unsupervised Hallucination Detection in Neural Machine Translation ACL

Nuno M. Guerreiro | Pierre Colombo | Pablo Piantanida | André Martins |

CREST: A Joint Framework for Rationalization and Counterfactual Text Generation ACL

Marcos Treviso | Alexis Ross | Nuno M. Guerreiro | André Martins |

The Inside Story: Towards Better Understanding of Machine Translation Neural Evaluation Metrics ACL

Ricardo Rei | Nuno M. Guerreiro | Marcos Treviso | Luisa Coheur | Alon Lavie | André Martins |