Urban Cellular Planning Optimisation of Multi-service Enhanced UMTS Based in Economic Issues. - Orlando Cabral; Fernando J. Velez; Cátia Franco; Ricardo Rei (WWIC, 2006)

COMET - Deploying a New State-of-the-art MT Evaluation Metric in Production. - Craig Stewart; Ricardo Rei; Catarina Farinha; Alon Lavie (AMTA (2), 2020)

COMET: A Neural Framework for MT Evaluation. - Ricardo Rei; Craig Stewart; Ana C. Farinha; Alon Lavie (EMNLP (1), 2020)

Automatic Truecasing of Video Subtitles Using BERT: A Multilingual Adaptable Approach. - Ricardo Rei; Nuno Miguel Guerreiro; Fernando Batista (IPMU (1), 2020)

Unbabel's Participation in the WMT20 Metrics Shared Task. - Ricardo Rei; Craig Stewart; Ana C. Farinha; Alon Lavie (WMT@EMNLP, 2020)

A free web service for fast COVID-19 classification of chest X-Ray images. - Jose David Bermudez Castro; Ricardo Rei; Jose E. Ruiz; Pedro Achanccaray Diaz; Smith W. Arauco Canchumuni; Cristian E. Muñoz Villalobos; Felipe Borges Coelho; Leonardo Forero Mendoza; Marco Aurélio Cavalcanti Pacheco (CoRR, 2020)

Unbabel's Participation in the WMT20 Metrics Shared Task. - Ricardo Rei; Craig Stewart; Catarina Farinha; Alon Lavie (CoRR, 2020)

Online Learning Meets Machine Translation Evaluation: Finding the Best Systems with the Least Human Effort. - Vânia Mendonça; Ricardo Rei; Luísa Coheur; Alberto Sardinha; Ana Lúcia Santos (ACL/IJCNLP (1), 2021)

MT-Telescope: An interactive platform for contrastive evaluation of MT systems. - Ricardo Rei; Ana C. Farinha; Craig Stewart; Luísa Coheur; Alon Lavie (ACL (demo), 2021)

Multilingual Email Zoning. - Bruno Jardim; Ricardo Rei; Mariana S. C. Almeida (EACL (Student Research Workshop), 2021)

Uncertainty-Aware Machine Translation Evaluation. - Taisiya Glushkova; Chrysoula Zerva; Ricardo Rei; André F. T. Martins (EMNLP (Findings), 2021)

IST-Unbabel 2021 Submission for the Explainable Quality Estimation Shared Task. - Marcos V. Treviso; Nuno Miguel Guerreiro; Ricardo Rei; André F. T. Martins (Eval4NLP, 2021)

Multilingual Simultaneous Sentence End and Punctuation Prediction (short paper). - Ricardo Rei; Fernando Batista; Nuno Miguel Guerreiro; Luísa Coheur (SwissText, 2021)

Results of the WMT21 Metrics Shared Task: Evaluating Metrics with Expert-based Human Evaluations on TED and News Domain. - Markus Freitag; Ricardo Rei; Nitika Mathur; Chi-kiu Lo; Craig Stewart; George F. Foster; Alon Lavie; Ondrej Bojar (WMT@EMNLP, 2021)

Are References Really Needed? Unbabel-IST 2021 Submission for the Metrics Shared Task. - Ricardo Rei; Ana C. Farinha; Chrysoula Zerva; Daan van Stigt; Craig Stewart; Pedro G. Ramos; Taisiya Glushkova; André F. T. Martins; Alon Lavie (WMT@EMNLP, 2021)

IST-Unbabel 2021 Submission for the Quality Estimation Shared Task. - Chrysoula Zerva; Daan van Stigt; Ricardo Rei; Ana C. Farinha; Pedro G. Ramos; José G. C. de Souza; Taisiya Glushkova; Miguel Vera; Fábio N. Kepler; André F. T. Martins (WMT@EMNLP, 2021)

Towards better subtitles: A multilingual approach for punctuation restoration of speech transcripts. - Nuno Miguel Guerreiro; Ricardo Rei; Fernando Batista (Expert Syst. Appl., 2021)

Searching for COMETINHO: The Little Metric That Could. - Ricardo Rei; Ana C. Farinha; José G. C. de Souza; Pedro G. Ramos; André F. T. Martins; Luísa Coheur; Alon Lavie (EAMT, 2022)

QUARTZ: Quality-Aware Machine Translation. - José G. C. de Souza; Ricardo Rei; Ana C. Farinha; Helena Moniz; André F. T. Martins (EAMT, 2022)

Disentangling Uncertainty in Machine Translation Evaluation. - Chrysoula Zerva; Taisiya Glushkova; Ricardo Rei; André F. T. Martins (EMNLP, 2022)

Towards a sentiment-aware conversational agent. - Isabel Dias; Ricardo Rei; Patrícia Pereira; Luísa Coheur (IVA, 2022)

Quality-Aware Decoding for Neural Machine Translation. - Patrick Fernandes; António Farinhas; Ricardo Rei; José Guilherme Camargo de Souza; Perez Ogayo; Graham Neubig; André F. T. Martins (NAACL-HLT, 2022)

Robust MT Evaluation with Sentence-level Multilingual Augmentation. - Duarte M. Alves; Ricardo Rei; Ana C. Farinha; José G. C. de Souza; André F. T. Martins (WMT, 2022)

Results of WMT22 Metrics Shared Task: Stop Using BLEU - Neural Metrics Are Better and More Robust. - Markus Freitag; Ricardo Rei; Nitika Mathur; Chi-kiu Lo; Craig Stewart; Eleftherios Avramidis; Tom Kocmi; George F. Foster; Alon Lavie; André F. T. Martins (WMT, 2022)

COMET-22: Unbabel-IST 2022 Submission for the Metrics Shared Task. - Ricardo Rei; José G. C. de Souza; Duarte M. Alves; Chrysoula Zerva; Ana C. Farinha; Taisiya Glushkova; Alon Lavie; Luísa Coheur; André F. T. Martins (WMT, 2022)

CometKiwi: IST-Unbabel 2022 Submission for the Quality Estimation Shared Task. - Ricardo Rei; Marcos V. Treviso; Nuno Miguel Guerreiro; Chrysoula Zerva; Ana C. Farinha; Christine Maroti; José G. C. de Souza; Taisiya Glushkova; Duarte M. Alves; Luísa Coheur; Alon Lavie; André F. T. Martins (WMT, 2022)

Findings of the WMT 2022 Shared Task on Quality Estimation. - Chrysoula Zerva; Frédéric Blain; Ricardo Rei; Piyawat Lertvittayakumjorn; José G. C. de Souza; Steffen Eger; Diptesh Kanojia; Duarte M. Alves; Constantin Orasan; Marina Fomicheva; André F. T. Martins; Lucia Specia (WMT, 2022)

Better Uncertainty Quantification for Machine Translation Evaluation. - Chrysoula Zerva; Taisiya Glushkova; Ricardo Rei; André F. T. Martins (CoRR, 2022)

The Inside Story: Towards Better Understanding of Machine Translation Neural Evaluation Metrics. - Ricardo Rei; Nuno Miguel Guerreiro; Marcos V. Treviso; Luísa Coheur; Alon Lavie; André F. T. Martins (ACL (2), 2023)

Steering Large Language Models for Machine Translation with Finetuning and In-Context Learning. - Duarte M. Alves; Nuno Miguel Guerreiro; João Alves 003; José Pombal; Ricardo Rei; José Guilherme Camargo de Souza; Pierre Colombo; André F. T. Martins (EMNLP (Findings), 2023)

Results of WMT23 Metrics Shared Task: Metrics Might Be Guilty but References Are Not Innocent. - Markus Freitag; Nitika Mathur; Chi-kiu Lo; Eleftherios Avramidis; Ricardo Rei; Brian Thompson 001; Tom Kocmi; Frédéric Blain; Daniel Deutsch; Craig Stewart; Chrysoula Zerva; Sheila Castilho; et al. (WMT, 2023)

Scaling up CometKiwi: Unbabel-IST 2023 Submission for the Quality Estimation Shared Task. - Ricardo Rei; Nuno Miguel Guerreiro; José Pombal; Daan van Stigt; Marcos V. Treviso; Luísa Coheur; José G. C. de Souza; André F. T. Martins (WMT, 2023)

AfriMTE and AfriCOMET: Empowering COMET to Embrace Under-resourced African Languages. - Jiayi Wang; David Ifeoluwa Adelani; Sweta Agrawal; Ricardo Rei; Eleftheria Briakou; Marine Carpuat; Marek Masiak; Xuanli He; Sofia Bourhim; Andiswa Bukula; Muhidin Mohamed; Temitayo Olatoye; et al. (CoRR, 2023)

Onception: Active Learning with Expert Advice for Real World Machine Translation. - Vânia Mendonça; Ricardo Rei; Luísa Coheur; Alberto Sardinha (Comput. Linguistics, 2023)

Can Automatic Metrics Assess High-Quality Translations? - Sweta Agrawal; António Farinhas; Ricardo Rei; André F. T. Martins (EMNLP, 2024)

Modeling User Preferences with Automatic Metrics: Creating a High-Quality Preference Dataset for Machine Translation. - Sweta Agrawal; José Guilherme Camargo de Souza; Ricardo Rei; António Farinhas; Gonçalo Rui Alves Faria; Patrick Fernandes; Nuno Miguel Guerreiro; André F. T. Martins (EMNLP, 2024)

xTower: A Multilingual LLM for Explaining and Correcting Translation Errors. - Marcos V. Treviso; Nuno Miguel Guerreiro; Sweta Agrawal; Ricardo Rei; José Pombal; Tânia Vaz; Helena Wu; Beatriz Silva; Daan van Stigt; André F. T. Martins (EMNLP (Findings), 2024)

AfriMTE and AfriCOMET: Enhancing COMET to Embrace Under-resourced African Languages. - Jiayi Wang; David Ifeoluwa Adelani; Sweta Agrawal; Marek Masiak; Ricardo Rei; Eleftheria Briakou; Marine Carpuat; Xuanli He; Sofia Bourhim; Andiswa Bukula; Muhidin Mohamed; Temitayo Olatoye; et al. (NAACL-HLT, 2024)

QUEST: Quality-Aware Metropolis-Hastings Sampling for Machine Translation. - Gonçalo Rui Alves Faria; Sweta Agrawal; António Farinhas; Ricardo Rei; José Guilherme Camargo de Souza; André F. T. Martins (NeurIPS, 2024)

Are LLMs Breaking MT Metrics? Results of the WMT24 Metrics Shared Task. - Markus Freitag; Nitika Mathur; Daniel Deutsch; Chi-kiu Lo; Eleftherios Avramidis; Ricardo Rei; Brian Thompson 001; Frédéric Blain; Tom Kocmi; Jiayi Wang; David Ifeoluwa Adelani; Marianna Buchicchio; et al. (WMT, 2024)

Is Preference Alignment Always the Best Option to Enhance LLM-Based Translation? An Empirical Analysis. - Hippolyte Gisserot-Boukhlef; Ricardo Rei; Emmanuel Malherbe; Céline Hudelot; Pierre Colombo; Nuno Miguel Guerreiro (WMT, 2024)

Tower v2: Unbabel-IST 2024 Submission for the General MT Shared Task. - Ricardo Rei; José Pombal; Nuno Miguel Guerreiro; João Alves 003; Pedro Henrique Martins; Patrick Fernandes; Helena Wu; Tânia Vaz; Duarte M. Alves; M. Amin Farajian; Sweta Agrawal; António Farinhas; et al. (WMT, 2024)

Findings of the Quality Estimation Shared Task at WMT 2024: Are LLMs Closing the Gap in QE? - Chrysoula Zerva; Frédéric Blain; José Guilherme Camargo de Souza; Diptesh Kanojia; Sourabh Dattatray Deoghare; Nuno Miguel Guerreiro; Giuseppe Attanasio; Ricardo Rei; Constantin Orasan; Matteo Negri; Marco Turchi; Rajen Chatterjee; et al. (WMT, 2024)

Tower: An Open Multilingual Large Language Model for Translation-Related Tasks. - Duarte M. Alves; José Pombal; Nuno Miguel Guerreiro; Pedro Henrique Martins; João Alves 003; M. Amin Farajian; Ben Peters; Ricardo Rei; Patrick Fernandes; Sweta Agrawal; Pierre Colombo; José G. C. de Souza; et al. (CoRR, 2024)

Is Context Helpful for Chat Translation Evaluation? - Sweta Agrawal; M. Amin Farajian; Patrick Fernandes; Ricardo Rei; André F. T. Martins (CoRR, 2024)

EuroLLM: Multilingual Language Models for Europe. - Pedro Henrique Martins; Patrick Fernandes; João Alves 003; Nuno Miguel Guerreiro; Ricardo Rei; Duarte M. Alves; José Pombal; M. Amin Farajian; Manuel Faysse; Mateusz Klimaszewski; Pierre Colombo; Barry Haddow; et al. (CoRR, 2024)

Assessing the Role of Context in Chat Translation Evaluation: Is Context Helpful and Under What Conditions? - Sweta Agrawal; M. Amin Farajian; Patrick Fernandes; Ricardo Rei; André F. T. Martins (Trans. Assoc. Comput. Linguistics, 2024)

xcomet : Transparent Machine Translation Evaluation through Fine-grained Error Detection. - Nuno Miguel Guerreiro; Ricardo Rei; Daan van Stigt; Luísa Coheur; Pierre Colombo; André F. T. Martins (Trans. Assoc. Comput. Linguistics, 2024)

WMT24++: Expanding the Language Coverage of WMT24 to 55 Languages & Dialects. - Daniel Deutsch; Eleftheria Briakou; Isaac Rayburn Caswell; Mara Finkelstein; Rebecca Galor; Juraj Juraska; Geza Kovacs; Alison Lui; Ricardo Rei; Jason Riesa; Shruti Rijhwani; Parker Riley; et al. (ACL (Findings), 2025)

CroissantLLM: A Truly Bilingual French-English Language Model. - Manuel Faysse; Patrick Fernandes; Nuno Miguel Guerreiro; António Loison; Duarte M. Alves; Caio Corro; Nicolas Boizard; João Alves 003; Ricardo Rei; Pedro Henrique Martins; Antoni Bigata Casademunt; François Yvon; et al. (Trans. Mach. Learn. Res., 2025)

Translate Smart, not Hard: Cascaded Translation Systems with Quality-Aware Deferral. - António Farinhas; Nuno Miguel Guerreiro; Sweta Agrawal; Ricardo Rei; André F. T. Martins (CoRR, 2025)

EuroBERT: Scaling Multilingual Encoders for European Languages. - Nicolas Boizard; Hippolyte Gisserot-Boukhlef; Duarte M. Alves; André F. T. Martins; Ayoub Hammal; Caio Corro; Céline Hudelot; Emmanuel Malherbe; Etienne Malaboeuf; Fanny Jourdan; Gabriel Hautreux; João Alves 003; et al. (CoRR, 2025)

Adding Chocolate to Mint: Mitigating Metric Interference in Machine Translation. - José Pombal; Nuno Miguel Guerreiro; Ricardo Rei; André F. T. Martins (CoRR, 2025)

XL-Instruct: Synthetic Data for Cross-Lingual Open-Ended Generation. - Vivek Iyer; Ricardo Rei; Pinzhen Chen; Alexandra Birch (CoRR, 2025)

Zero-shot Benchmarking: A Framework for Flexible and Scalable Automatic Evaluation of Language Models. - José Pombal; Nuno Miguel Guerreiro; Ricardo Rei; André F. T. Martins (CoRR, 2025)

M-Prometheus: A Suite of Open Multilingual LLM Judges. - José Pombal; Dongkeun Yoon; Patrick Fernandes; Ian Wu; Seungone Kim; Ricardo Rei; Graham Neubig; André F. T. Martins (CoRR, 2025)

EuroLLM-9B: Technical Report. - Pedro Henrique Martins; João Alves 003; Patrick Fernandes; Nuno Miguel Guerreiro; Ricardo Rei; M. Amin Farajian; Mateusz Klimaszewski; Duarte M. Alves; José Pombal; Nicolas Boizard; Manuel Faysse; Pierre Colombo; et al. (CoRR, 2025)

Tower+: Bridging Generality and Translation Specialization in Multilingual LLMs. - Ricardo Rei; Nuno Miguel Guerreiro; José Pombal; João Alves 003; Pedro Teixeirinha; M. Amin Farajian; André F. T. Martins (CoRR, 2025)