André Filipe Torres Martins

André Martins

Academic position:	Assistant Professor
Joining date:	11-11-2010
Roles in IT:	Senior Researcher
Thematic Line:	Information and Data Sciences
Group:	Pattern and Image Analysis – Lx

Email: Send Email
Address: IT – Lisboa
Instituto Superior Técnico - Torre Norte - Piso 10
Av. Rovisco Pais, 1
1049 - 001 Lisboa
Tel: +351 21 841 84 54

By Authors
By Institutions

27-10-2025

Project Snapshot | NextGenAI: Centre for Responsible AI

Centre for Responsible AI's (CRAI) overall mission is to revolutionize the AI landscape responsibly and to develop the next generation of AI products that are transparent, fair, and trustworthy.

03-10-2025

32 Researchers of Instituto de Telecomunicações on the Top 2% of Stanford-Elsevier Most-cited Scientists Worldwide

The ranking highlights researchers whose publications have had the greatest impact within the academic community and have made significant contributions to global scientific progress.

05-02-2025

NEWS@IT - Latest Issue

In this issue 119, we highlight the latest achievements of our researchers.

15-01-2025

CNN Inovação - Instituto de Telecomunicações

Watch the full episode of CNN Inovação featuring Instituto de Telecomunicações (Lx - Instituto Superior Técnico), highlighting what we do best.

06-12-2024

AMALIA: The First Portuguese-Language LLM

The Portuguese Prime Minister announced at the Web Summit the development of AMALIA – an Automatic Multimodal Language Assistant with Artificial Intelligence, the first Large-Scale Language Model (LLM) designed specifically for the Portuguese language.

15-10-2024

News@IT - Latest issue

In our latest newsletter, Issue 115, we are pleased to feature an exclusive interview with Carlos Salema, a distinguished scientist and one of the founding members of the Instituto de Telecomunicações.

17-01-2024

Project Snapshot | NextGenAI - Center for Responsible AI

Centre for Responsible AI overall mission is to revolutionize the AI landscape responsibly and to develop the next generation of AI products that are transparent, fair, and trustworthy.

24-10-2023

IT Researchers ranked among the Top 2% Scientists Worldwide by Stanford University

A total of thirty IT researchers are among the most-cited scientists worldwide, falling within the top 2% in their respective scientific fields.

12-07-2023

Out now IT NEWS nr. 107

The Issue 107 of our newsletter is out, bringing you IT news highlights for June 2023. Click to find more!

06-07-2023

Center for Responsible AI presents its first outcomes in healthcare sector

The Center for Responsible AI (CRAI) aims to provide regulation for artificial intelligence (AI) technologies.

27-06-2023

Researchers of IT nominated to Academia das Ciências de Lisboa

Members of the Academia das Ciências de Lisboa are chosen from among citizens of Portuguese nationality who have produced scientific or literary works of recognized merit.

18-05-2023

Instituto de Telecomunicações in the consortium of the new Center for Responsible AI

The new Center for Responsible AI aims to define the working method for the development of responsible artificial intelligence in Portugal.

12-04-2023

How cool is your science?

The New IT spods on science and technology. Click here to listen!

31-01-2023

André Martins was awarded an ERC Consolidator Grant to study artificial neural networks applied to natural language processing

With the DECOLLAGE project (DEep COgnition Learning for LAnguage GEneration), André Martins intends to present solutions to some of the fundamental problems of NLP.

03-11-2022

IT researchers among the most-cited scientists worldwide

Twenty-six IT researchers are listed as the most-cited scientists worldwide by University of Stanford and publisher Elsevier.

Scientific Achievements

Degrees

PhD, Instituto Superior Técnico, 01-01-2012

Expertise Topics

Aprendizagem Estatística e Processamento de Linguagem Natural

Academic Activities

20Supervision of PhD theses

As Supervisor

Evaluation of Large Language Models, PhD Student, Beatriz Maria Estevens Canaverde, Expected conclusion 02-2029
Multimodal NLP, PhD Student, Sonal Sannigrahi, Expected conclusion 10-2028
Interpretability for Large Language Models, PhD Student, Emmanouil Zaranis, Expected conclusion 09-2028
Efficient Large Language Models, PhD Student, Pavlo Vasylenko, Expected conclusion 09-2028
Sparse Communication, PhD Student, Sophia Sklaviadis, Expected conclusion 09-2028
Quality-Aware Generation for NLP, PhD Student, Miguel Moura Ramos, Expected conclusion 01-2028
Neural Models for Memories and Attention, PhD Student, Saúl José Rodrigues dos Santos, Expected conclusion 09-2027
Efficient Adaptation of Large Language Models, PhD Student, Duarte Miguel Rodrigues dos Santos Marques Alves, Expected conclusion 02-2027
Context Aware Machine Translation (MAIA project), PhD Student, Patrick Santos Fernandes, Defended 09-2025
Quality-Aware Machine Translation, PhD Student, António José Evaristo Farinhas, Defended 07-2025
Latent Structure Models for Explainability, PhD Student, Nuno Miguel Serrano Guerreiro, Defended 04-2025
Calibration and Confidence Estimation, PhD Student, Taisiya Glushkova, Defended 06-2024
DeepSPIN, PhD Student, Marcos Vinicius Treviso, Defended 07-2023
DeepSPIN, PhD Student, Tsvetomila Borisova Mihaylova, Defended 06-2023
DeepSPIN, PhD Student, Benjamin Paul Oscar Peters, Defended 10-2022
Sparsity and Structure for Attention and Text Generation, PhD Student, Pedro Henrique Alves Martins, Defended 10-2022
DeepSPIN, PhD Student, Gonçalo Migueis Matos Afonso Correia, Defended 06-2022
Method of Moments for Natural Language Processing, PhD Student, Zita Alexandra Magalhaes Marinho, Defended 02-2018

As Co-supervisor

Uncertainty quantification for language models for medical applications, PhD Student, Margarida Gerald Oliveira Moreira de Campos, Expected conclusion 06-2026
Document Wide Neural Machine Translation, PhD Student, Sameen Maruf, Defended 11-2019

5Supervision of MSc theses

As Supervisor

Adaptively Sparse Flash Attention, MSc Student, Nuno Miguel Matos Gonçalves, Concluded 08-2025
Grammar Error Correction for Neural Machine Translation, MSc Student, João Maria Janeiro, Concluded 10-2022
Improving Adequacy in Neural Machine Translation, MSc Student, Pedro Ferreira, Concluded 09-2018

As Co-supervisor

Linear Recurrent Models for Machine Translation, MSc Student, Hugo Henrique Silva Pitorro, Concluded 06-2024
Differential Causal Discovery, MSc Student, Gonçalo Rui Alves Faria, Concluded 05-2022

Publications

1Books

V. Niculae, C. Corro, T. Mihaylova, N. Nangia, A. Martins, Discrete Latent Structure in Neural Networks, Now Publishers, Boston - Delft, 2025,
| BibTex

2Books Chapters

A. Martins, AD3 : A Fast Decoder for Structured Prediction, Chapter in, Advanced Structured Prediction, Sebastian Nowozin, Peter V. Gehler, Jeremy Jancsary and Christoph H. Lampert, MIT Press, 2014
P. Aguiar, M. Bicego, U. Castellani, M. A. T. Figueiredo, A. Martins, V. Murino, A. Perina, A. Ulas, On the combination of information-theoretic kernels with generative embeddings, Chapter in, Similarity-Based Pattern Analysis and Recognition, M. Pelillo, Springer, London, 2013

5Papers in Journals

C Zerva, A. Martins, Conformalizing Machine Translation Evaluation, Transactions of the Association for Computational Linguistics, Vol. 12, No., pp. 1460 - 1478, November, 2024,
| Abstract | BibTex
M. Campos, A. F. Farinhas, C Zerva, M. A. T. Figueiredo, A. Martins, Conformal Prediction for Natural Language Processing: A Survey, Transactions of the Association for Computational Linguistics, Vol. 12, No., pp. 1497 - 1516, July, 2024,
| Abstract | BibTex
A. Martins, M. A. T. Figueiredo, P. Aguiar, N. A. Smith, E. P. Xing, AD3: Alternating Directions Dual Decomposition for MAP Inference in Graphical Models, Journal of Machine Learning Research, Vol. 16, No. Mar, pp. 495 - 545, March, 2015 | BibTex
Das, Chen, A. Martins, Schneider, N. A. Smith, Frame-Semantic Parsing, Computational Linguistics, Vol. 40, No. 1, pp. 9 - 56, October, 2014 | BibTex
A. Martins, N. A. Smith, E. P. Xing, P. Aguiar, M. A. T. Figueiredo, Nonextensive information theoretic kernels on measures, Journal of Machine Learning Research, Vol. 10, No., pp. 937 - 975, April, 2009,
| Abstract | BibTex

96Papers in Conferences

K. Ambilduke, B. Peters, S. S. Sannigrahi, B. G. Gomes, A. Martins, From TOWER to SPIRE: Adding the Speech Modality to a Translation-specialist LLM, Empirical Methods in Language Processing - EMNLP, Suzhou, China, Vol., pp. -, November, 2025,
| Abstract | Full text (PDF 384 KBs) | BibTex
J. Pombal, N. Guerreiro, R. Rei, A. Martins, Zero-shot Benchmarking: A Framework for Flexible and Scalable Automatic Evaluation of Language Models, Conference on Language Modeling COLM, Conference online, October, 2025,
| Abstract | BibTex
N. Boizard, H. Gisserot-Boukhlef, D. A. Alves, A. Martins, A. Hammal, C. Corro, C. Hudelot, E. Malherbe, E. Malaboeuf, F. Jourdan, G. Hautreux, J. Alves, K. El-Haddad, M. Faysse, M. Peyrard, N. Guerreiro, P. Fernandes, R. Rei, P. Colombo, EuroBERT: Scaling Multilingual Encoders for European Languages, Conference on Language Modeling COLM, Montreal, Canada, October, 2025,
| Abstract | BibTex
M. Moura Ramos, P. Fernandes, S. A. Agrawal, A. Martins, Multilingual Contextualization of Large Language Models for Document-Level Machine Translation, Conference on Language Modeling COLM, Montreal, Canada, October, 2025,
| Abstract | BibTex
S. Santos, A. F. Farinhas, D. McNamee, A. Martins, ∞-Video: A Training-Free Approach to Long Video Understanding via Continuous-Time Memory Consolidation, 37th International Conference on Machine Learning ICML, Vancouver, Canada, July, 2025,
| Abstract | BibTex
N. Gonçalves, M. V. T. Treviso, A. Martins, ADASPLASH: Adaptive Sparse Flash Attention, International Conf. on Machine Learning - ICML, Vancouver, Canada, Vol., pp. -, July, 2025 | BibTex
E. Zaranis, G. A. Attanasio, S. A. Agrawal, A. Martins, Watching the Watchers: Exposing Gender Disparities in Machine Translation Quality Estimation, Annual Meeting of the Association for Computational Linguistics - ACL, Vienna, Austria, Vol., pp. -, July, 2025 | BibTex
B. Peters, A. Martins, Did Translation Models Get More Robust Without Anyone Even Noticing?, Annual Meeting of the Association for Computational Linguistics - ACL, Vienna, Austria, Vol., pp. -, July, 2025,
| Abstract | Full text (PDF 328 KBs) | BibTex
M. Campos, J. Calém, S. Sklaviadis, M. A. T. Figueiredo, A. Martins, Sparse Activations as Conformal Predictors, International Conf. on Artificial Intelligence and Statistics - AISTATS, Phuket, Thailand, May, 2025,
| Abstract | BibTex
S. Santos, A. F. Farinhas, D. McNamee, A. Martins, Modern Hopfield Networks with Continuous-Time Memories, International Conference on Learning Representations ICLR, Singapore, Singapore, April, 2025,
| Abstract | BibTex
A. F. Farinhas, H. Li, A. Martins, Reranking Laws for Language Generation: A Communication-Theoretic Perspective, Conference on Neural Information Processing Systems NeurIPS, Vancouver, Canada, Vol., pp. -, December, 2024 | BibTex
G. Faria, S. A. Agrawal, A. F. Farinhas, R. Rei, J. G. de Souza, A. Martins, QUEST: Quality-Aware Metropolis-Hastings Sampling for Machine Translatio, Advances in Neural Information Processing Systems - NIPS, Vancouver, Canada, December, 2024 | Full text (PDF 3 MBs) | BibTex
S. A. Agrawal, A. F. Farinhas, R. Rei, A. Martins, Can Automatic Metrics Assess High-Quality Translations?, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024,
| Abstract | BibTex
J. Pombal, R. Rei, N. Guerreiro, J. Alves, P. H. Martins, P. Fernandes, HW Wu, T. Vaz, D. A. Alves, M. Farajian, S. A. Agrawal, A. F. Farinhas, J. G. de Souza, A. Martins, TOWER-V2: Unbabel-IST 2024 Submission for the General MT Shared Task, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024,
| Abstract | BibTex
E. Zaranis, N. Guerreiro, A. Martins, Analyzing Context Contributions in LLM-based Machine Translation, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024 | BibTex
J. Pombal, S. A. Agrawal, A. Martins, Improving Context Usage for Translating Bilingual Customer Support Chat with Large Language Models, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024,
| Abstract | BibTex
S. A. Agrawal, J. G. de Souza, R. Rei, A. F. Farinhas, G. Faria, P. Fernandes, N. Guerreiro, A. Martins, Modeling User Preferences with Automatic Metrics: Creating a High-Quality Preference Dataset for Machine Translation, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024 | BibTex
M. V. T. Treviso, N. Guerreiro, S. A. Agrawal, R. Rei, J. Pombal, T. Vaz, HW Wu, B. Silva, D. Stigt, A. Martins, xTower: A Multilingual LLM for Explaining and Correcting Translation Errors, Empirical Methods in Language Processing - EMNLP, Miami, United States, November, 2024,
| Abstract | BibTex
M. V. T. Treviso, H. P. Pitorro, P. Vasylenko, A. Martins, How Effective are State Space Models for Machine Translation?, Conference on Machine Translation WMT, Miami, United States, November, 2024,
| Abstract | BibTex
C Zerva, F. Blain, J. G. Sousa, D. Kanojia, S. Deoghar, N. Guerreiro, G. A. Attanasio, R. Rei, C. Orasan, M. Negri, M. Turchi, R. Chatterjee, P. Bhattacharyya, M. Freitag, A. Martins, Findings of the Quality Estimation Shared Task at WMT 2024 Are LLMs Closing the Gap in QE?, Conference on Machine Translation WMT, Miami, United States, Vol., pp. -, November, 2024,
| Abstract | BibTex
N. Guerreiro, D. A. Alves, J. Pombal, P. H. Martins, J. Alves, M. Farajian, B. Peters, R. Rei, P. Fernandes, S. A. Agrawal, P. Colombo, J. G. de Souza, A. Martins, Tower: An Open Multilingual Large Language Model for Translation-Related Tasks, Conference on Language Modeling COLM, Philadelphia, United States, Vol., pp. -, October, 2024,
| Abstract | BibTex
P. Martins, N. Guerreiro, P. Fernandes, J. Alves, R. Rei, D. A. Alves, J. Pombal, M. Farajian, M. Faysse, P. Colombo, B. Haddow, J. G. de Souza, A. Birch, A. Martins, EuroLLM: Multilingual Language Models for Europe, EuroHPC User Day, Amsterdam, Netherlands, Vol., pp. -, October, 2024,
| Abstract | BibTex
N. Guerreiro, R. Rei, D. Stigt, L. C. Coheur, P. Colombo, A. Martins, xCOMET: Transparent Machine Translation Evaluation through Fine-grained Error Detection, Empirical Methods in Language Processing - EMNLP, Bangkok, Thailand, Vol., pp. -, August, 2024,
| Abstract | BibTex
S. Santos, V. Niculae, D. McNamee, A. Martins, Sparse and Structured Hopfield Networks, ICML Forty-first International Conference on Machine Learning, Viena, Austria, July, 2024,
| Abstract | BibTex
A. F. Farinhas, D. Ulmer, C Zerva, A. Martins, Non-Exchangeable Conformal Risk Control, International Conference on Learning Representations ICLR, Vienna, Austria, Vol., pp. -, May, 2024,
| Abstract | BibTex
D. Ulmer, C Zerva, A. Martins, Non-Exchangeable Conformal Language Generation with Nearest Neighbors, EACL: Conference of the European Chapter of the Association for Computational Linguistics EACL, Valetta, Malta, Vol., pp. -, March, 2024,
| Abstract | BibTex
A. F. Farinhas, J. G. de Souza, A. Martins, An Empirical Study of Translation Hypothesis Ensembling with Large Language Models, Empirical Methods in Language Processing - EMNLP, Singapore, Singapore, Vol., pp. -, December, 2023 | BibTex
N. Guerreiro, D. A. Alves, J. Waldendorf, J. Waldendorf, B. Haddow, A. Birch, P. Colombo, A. Martins, Hallucinations in Large Multilingual Translation Models, Empirical Methods in Language Processing - EMNLP, Singapore, Singapore, Vol., pp. -, December, 2023,
| Abstract | BibTex
A. Martins, V. Niculae, D. McNamee, Sparse Modern Hopfield Networks, Advances in Neural Information Processing Systems - NIPS, New Orleans, United States, December, 2023 | BibTex
F. Blain, C Zerva, R. Rei, N. Guerreiro, D. Kanojia, J. G. Sousa, B. Silva, T. Vaz, Y. Jinxuan, F. Azadi, C. Orasan, A. Martins, Findings of the WMT 2023 Shared Task on Quality Estimation, Conference on Machine Translation WMT, Singapore, Singapore, Vol., pp. -, December, 2023,
| Abstract | BibTex
R. Rei, N. Guerreiro, J. Pombal, D. Stigt, M. V. T. Treviso, L. C. Coheur, J. G. de Souza, A. Martins, Scaling up CometKiwi: Unbabel-IST 2023 Submission for the Quality Estimation Shared Task, Conference on Machine Translation WMT, Singapore, Singapore, December, 2023 | BibTex
N. Guerreiro, P. Colombo, P. Piantanida, A. Martins, Optimal Transport for Unsupervised Hallucination Detection in Neural Machine Translation, Annual Meeting of the Association for Computational Linguistics - ACL, Toronto, Canada, Vol., pp. -, July, 2023,
| Abstract | BibTex
M. V. T. Treviso, A. R. Ross, N. Guerreiro, A. Martins, CREST: A Joint Framework for Rationalization and Counterfactual Text Generation, Annual Meeting of the Association for Computational Linguistics - ACL, Toronto, Canada, Vol., pp. -, July, 2023 | BibTex
M. V. T. Treviso, R. Rei, N. Guerreiro, L. C. Coheur, A. Lavie, A. Martins, The Inside Story: Towards Better Understanding of Machine Translation Neural Evaluation Metrics, Annual Meeting of the Association for Computational Linguistics - ACL, Toronto, Canada, July, 2023 | BibTex
T. Glushkova, C Zerva, A. Martins, BLEU Meets COMET: Combining Lexical and Neural Metrics Towards Robust Machine Translation Evaluation, Conference of the European Association for Machine Translation, Tampere, Finland, June, 2023,
| Abstract | Full text (PDF 305 KBs) | BibTex
N. Guerreiro, E. Voita, A. Martins, Looking for a Needle in a Haystack: A Comprehensive Study of Hallucinations in Neural Machine Translation, EACL: Conference of the European Chapter of the Association for Computational Linguistics EACL, Dubrovnik, Croatia, Vol., pp. -, May, 2023,
| Abstract | Full text (PDF 1 MB) | BibTex
C Zerva, T. Glushkova, R. Rei, A. Martins, Disentangling Uncertainty in Machine Translation Evaluation, Empirical Methods in Language Processing - EMNLP, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | Full text (PDF 824 KBs) | BibTex
R. Rei, M. V. T. Treviso, C Zerva, N. Guerreiro, A. C. Farinha, C. M. Maroti, J.M. Sousa, T. Glushkova, D. M. A. Alves, A. Lavie, L. C. Coheur, A. Martins, CometKiwi: IST-Unbabel 2022 Submission for the Quality Estimation Shared Task, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
R. Rei, J. G. Sousa, D. M. A. Alves, C Zerva, A. C. Farinha, T. Glushkova, A. Lavie, L. C. Coheur, A. Martins, COMET-22: Unbabel-IST 2022 submission for the metrics shared task, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
C Zerva, F. Blain, R. Rei, P. Lertvittayakumjorn, J. G. Sousa, S. Eger, D. Kanojia, D. A. Alves, C. Orasan, M. Fomicheva, A. Martins, L. Specia, Findings of the wmt 2022 shared task on quality estimation, Conference on Machine Translation WMT, Abu Dhabi, United Arab Emirates, Vol., pp. -, December, 2022,
| Abstract | BibTex
P. Fernandes, M. V. T. Treviso, D. Pruthi, A. Martins, G. Neubig, Learning to Scaffold: Optimizing Model Explanations for Teaching, Advances in Neural Information Processing Systems - NIPS, New Orleans, United States, Vol., pp. -, November, 2022,
| Abstract | BibTex
P. Fernandes, . ., R. Rei, J. G. de Souza, P O Ogayo, G. Neubig, A. Martins, Quality-Aware Decoding for Neural Machine Translation, Annual Conference of the North American Chapter of the Association for Computational Linguistics NAACL, Seattle, United States, Vol., pp. -, July, 2022,
| Abstract | BibTex
B. Peters, A. Martins, Beyond Characters: Subword-level Morpheme Segmentation, Workshop on Computational Research in Phonetics, Phonology, and Morphology SIGMORPHON, Seattle, United States, Vol., pp. -, July, 2022,
| Abstract | Full text (PDF 245 KBs) | BibTex
T. Mihaylova, V. Niculae, A. Martins, Modeling Structure with Undirected Neural Networks, International Conf. on Machine Learning - ICML, Baltimore, United States, Vol., pp. -, July, 2022 | Full text (PDF 948 KBs) | BibTex
M. Fomicheva, S. Sun, E.F. Fonseca, C Zerva, F. Blain, V. Chaudhary, F. G. Guzmán, N. L. Lopatina, L. Specia, A. Martins, MLQE-PE: A Multilingual Quality Estimation and Post-Editing Dataset, European Language Resources Association (ELRA) International Conference on Language Resources and Evaluation - LREC, Marseille, France, Vol., pp. -, June, 2022,
| Abstract | Full text (PDF 408 KBs) | BibTex
A. Martins, DeepSPIN - Deep Structured Prediction in Natural Language Processing, Conference of the European Association for Machine Translation, Ghent, Belgium, Vol., pp. -, June, 2022 | Full text (PDF 145 KBs) | BibTex
P. H. Martins, Z. Marinho, A. Martins, $infty$-former: Infinite Memory Transformer, Annual Meeting of the Association for Computational Linguistics - ACL, Dublin, Ireland, May, 2022,
| Abstract | BibTex
M. V. T. Treviso, A. Gois, P. Fernandes, E.F. Fonseca, A. Martins, Predicting Attention Sparsity in Transformers, Annual Meeting of the Association for Computational Linguistics - ACL, Dublin, Ireland, May, 2022 | BibTex
A. F. Farinhas, W. Aziz, V. Niculae, A. Martins, Sparse Communication via Mixed Distributions, International Conference on Learning Representations ICLR, Conference online, April, 2022,
| Abstract | BibTex
G. Faria, A. Martins, M. A. T. Figueiredo, Differentiable Causal Discovery Under Latent Interventions, Conference on Causal Learning and Reasoning CLeaR, Eureka, CA, USA, United States, Vol., pp. -, April, 2022,
| Abstract | Full text (PDF 1 MB) | BibTex
T. Glushkova, C Zerva, R. Rei, A. Martins, Uncertainty-Aware Machine Translation Evaluation, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2021,
| Abstract | Full text (PDF 656 KBs) | BibTex
C Zerva, D. Stigt, R. Rei, A. C. Farinha, P. G. Ramos, J. G. de Souza, T. Glushkova, M. Vera, F. Kepler, A. Martins, IST-Unbabel 2021 Submission for the Quality Estimation Shared Task, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 339 KBs) | BibTex
N. Guerreiro, A. Martins, SPECTRA: Sparse Structured Text Rationalization, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2021,
| Abstract | Full text (PDF 1017 KBs) | BibTex
R. Rei, A. C. Farinha, C Zerva, D. Stigt, C. Stuart, P. G. Ramos, T. Glushkova, A. Martins, A. Lavie, Are References Really Needed? Unbabel-IST 2021 Submission for the Metrics Shared Task, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 245 KBs) | BibTex
L. Specia, F. Blain, M. Fomicheva, C Zerva, Z. Li, V. Chaudhary, A. Martins, Findings of the WMT 2021 Shared Task on Quality Estimation, Conference on Machine Translation WMT, Conference online, November, 2021,
| Abstract | Full text (PDF 1 MB) | BibTex
M. V. T. Treviso, N. Guerreiro, R. Rei, A. Martins, IST-Unbabel 2021 Submission for the Explainable Quality Estimation Shared Task, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2021 | BibTex
P. H. Martins, V. Niculae, Z. Marinho, A. Martins, Sparse and Structured Visual Attention, IEEE International Conference on Image Processing ICIP, Anchorage, United States, September, 2021 | Full text (PDF 6 MBs) | BibTex
P. Fernandes, G. Neubig, A. Martins, Measuring and Increasing Context Usage in Context-Aware Machine Translation, Annual Meeting of the Association for Computational Linguistics - ACL, Bangkok, Thailand, August, 2021,
| Abstract | Full text (PDF 353 KBs) | BibTex
K. Yin, P. Fernandes, D. Pruthi, . Chaudhary, A. Martins, G. Neubig, Do Context-Aware Translation Models Pay the Right Attention?, Annual Meeting of the Association for Computational Linguistics - ACL, Bangkok, Thailand, August, 2021,
| Abstract | Full text (PDF 663 KBs) | BibTex
B. Peters, A. Martins, Smoothing and Shrinking the Sparse Seq2Seq Search Space, Association for Computational Linguistics Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies NAACL-HLT, Conference online, June, 2021,
| Abstract | Full text (PDF 499 KBs) | BibTex
G. Correia, V. Niculae, W. Aziz, A. Martins, Efficient Marginalization of Discrete and Structured Latent Variables via Sparsity, Advances in Neural Information Processing Systems - NIPS, Conference online, December, 2020,
| Abstract | Full text (PDF 724 KBs) | BibTex
A. Lopes, M. Farajian, R. Bawden, M. Zhang, A. Martins, Document-level Neural MT: A Systematic Comparison, European Conference of Machine Translation, Lisbon, Portugal, November, 2020 | Full text (PDF 249 KBs) | BibTex
P. H. Martins, Z. Marinho, A. Martins, Sparse Text Generation, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2020 | Full text (PDF 1 MB) | BibTex
A. Martins, T. Mihaylova, V. Niculae, Understanding the Mechanics of SPIGOT: Surrogate Gradients for Latent Structure Learning, Empirical Methods in Language Processing - EMNLP, Punta Cana, Dominican Republic, November, 2020 | Full text (PDF 528 KBs) | BibTex
A. Martins, M. V. T. Treviso, The Explanation Game: Towards Prediction Explainability through Sparse Communication, BlackboxNLP: Analyzing and Interpreting Neural Networks for NLP, Punta Cana, Dominican Republic, November, 2020 | Full text (PDF 642 KBs) | BibTex
A. Martins, A. F. Farinhas, M. V. T. Treviso, V. Niculae, P. Aguiar, M. A. T. Figueiredo, Sparse and Continuous Attention Mechanisms, Conference on Neural Information Processing Systems NeurIPS, Vancouver, Canada, October, 2020 | BibTex
B. Peters, A. Martins, DeepSPIN at SIGMORPHON 2020: One-Size-Fits-All Multilingual Models, Workshop on Computational Research in Phonetics, Phonology, and Morphology SIGMORPHON, Seattle, United States, July, 2020,
| Abstract | Full text (PDF 363 KBs) | BibTex
E.F. Fonseca, A. Martins, Revisiting Higher-Order Dependency Parsers, Annual Meeting of the Association for Computational Linguistics - ACL, Seattle, United States, Vol., pp. 8795 - 8800, July, 2020,
| Abstract | Full text (PDF 677 KBs) | BibTex
V. Niculae, A. Martins, LP-SparseMAP: Differentiable Relaxed Optimization for Sparse Structured Prediction, International Conf. on Machine Learning - ICML, Vienna, Austria, June, 2020 | Full text (PDF 832 KBs) | BibTex
G. Correia, V. Niculae, A. Martins, Adaptively Sparse Transformers, Empirical Methods in Language Processing - EMNLP, Hong Kong, Hong Kong, November, 2019,
| Abstract | Full text (PDF 527 KBs) | BibTex
B. Peters, A. Martins, IT–IST at the SIGMORPHON 2019 Shared Task: Sparse Two-headed Models for Inflection, Workshop on Computational Research in Phonetics, Phonology, and Morphology SIGMORPHON, Florence, Italy, August, 2019,
| Abstract | Full text (PDF 347 KBs) | BibTex
F. Kepler, J. Trénous, M. V. T. Treviso, M. Vera, A. Gois, M. Farajian, A. Lopes, A. Martins, Unbabel's Participation in the WMT19 Translation Quality Estimation Shared Task, Annual Meeting of the Association for Computational Linguistics - ACL, Florence, Italy, August, 2019 | Full text (PDF 264 KBs) | BibTex
F. Kepler, J. Trénous, M. V. T. Treviso, M. Vera, A. Martins, OpenKiwi: An Open Source Framework for Quality Estimation, Annual Meeting of the Association for Computational Linguistics - ACL, Florence, Italy, August, 2019 | Full text (PDF 327 KBs) | BibTex
E.F. Fonseca, L. Y. Yankovskaya, A. Martins, M. F. Fishel, C. F. Federmann, Findings of the WMT 2019 Shared Tasks on Quality Estimation, Conference on Machine Translation WMT, Florence, Italy, Vol., pp. 1 - 10, August, 2019,
| Abstract | Full text (PDF 186 KBs) | BibTex
G. Correia, A. Martins, A Simple and Effective Approach to Automatic Post-Editing with Transfer Learning, Annual Meeting of the Association for Computational Linguistics - ACL, Florence, Italy, July, 2019,
| Abstract | Full text (PDF 352 KBs) | BibTex
A. Lopes, M. Farajian, G. Correia, J. Trénous, A. Martins, Unbabel’s Submission to the WMT2019 APE Shared Task: BERT-Based Encoder-Decoder for Automatic Post-Editing, Conference on Machine Translation WMT, Florence, Italy, July, 2019,
| Abstract | Full text (PDF 320 KBs) | BibTex
B. Peters, V. Niculae, A. Martins, Sparse Sequence-to-Sequence Models, Annual Meeting of the Association for Computational Linguistics - ACL, Florence, Italy, July, 2019,
| Abstract | Full text (PDF 438 KBs) | BibTex
A. Martins, V. Niculae, T. Mihaylova, N. Nangia, Latent Structure Models for Natural Language Processing, Annual Meeting of the Association for Computational Linguistics - ACL, Florence, Italy, July, 2019 | BibTex
B. Peters, V. Niculae, A. Martins, Interpretable Structure Induction via Sparse Attention, BlackboxNLP: Analyzing and Interpreting Neural Networks for NLP, Brussels, Belgium, November, 2018,
| Abstract | Full text (PDF 239 KBs) | BibTex
D. Ferreira, A. Martins, M. Almeida, Jointly Learning to Embed and Predict with Multiple Languages, Annual Meeting of the Association for Computational Linguistics - ACL, Berlin, Germany, Vol. 0, pp. 0 - 0, August, 2016 | BibTex
A. Martins, R. Astudillo, C. Hokamp, F. Kepler, Unbabel's Participation in the WMT16 Word-Level Translation Quality Estimation Shared Task, Conference on Machine Translation WMT, Berlin, Germany, Vol. 0, pp. 0 - 0, August, 2016 | BibTex
A. Martins, R. Astudillo, From Softmax to Sparsemax: A Sparse Model of Attention and Multi-Label Classification, International Conf. on Machine Learning - ICML, New York, United States, Vol. 48, pp. 1614 - 1623, June, 2016 | BibTex
M. Almeida, C. Pinto, H. Figueira, P. Mendes, A. Martins, Aligning Opinions: Cross-Lingual Opinion Mining with Dependencies., Annual Meeting of the Association for Computational Linguistics - ACL, Beijing, China, Vol. -, pp. - - -, July, 2015,
| Abstract | BibTex
A. Martins, F. González, Parsing as Reduction, Annual Meeting of the Association for Computational Linguistics - ACL, Beijing, China, Vol. -, pp. - - -, July, 2015 | BibTex
A. Martins, Transferring Coreference Resolvers with Posterior Regularization, Annual Meeting of the Association for Computational Linguistics - ACL, Beijing, China, Vol. -, pp. - - -, July, 2015 | BibTex
M. Almeida, A. Martins, Lisbon: Evaluating TurboSemanticParser on Multiple Languages and Out-of-Domain Data, International Workshop on Semantic Evaluation - SemEval, Denver, United States, Vol. -, pp. - - -, June, 2015,
| Abstract | BibTex
M. P. Negrinho, A. Martins, Orbit Regularization, Advances in Neural Information Processing Systems - NIPS, Montreal, Canada, Vol. 0, pp. 0 - 0, December, 2014 | BibTex
A. Martins, M. Almeida, Priberam: A Turbo Semantic Parser with Second Order Features, International Workshop on Semantic Evaluation - SemEval, Dublin, Ireland, Vol. 0, pp. 0 - 0, August, 2014 | BibTex
A. Martins, M. Almeida, N. A. Smith, "Turning on the Turbo: Fast Third-Order Non-Projective Turbo Parsers", Annual Meeting of the Association for Computational Linguistics - ACL, Sofia, Bulgaria, Vol. -, pp. 617 - 622, August, 2013 | BibTex
M. Almeida, A. Martins, Fast and Robust Compressive Summarization with Dual Decomposition and Multi-Task Learning, Annual Meeting of the Association for Computational Linguistics - ACL, Sofia, Bulgaria, Vol. 0, pp. 0 - 0, August, 2013,
| Abstract | Full text (PDF 457 KBs) | BibTex
A. Martins, N. A. Smith, P. Aguiar, M. A. T. Figueiredo, Structured sparsity in structured prediction, Empirical Methods in Language Processing - EMNLP, Edinburgh, United Kingdom, July, 2011,
| Abstract | BibTex
A. Martins, N. A. Smith, M. A. T. Figueiredo, P. Aguiar, Dual Decomposition with Many Overlapping Components, Empirical Methods in Language Processing - EMNLP, Edinburgh, United Kingdom, July, 2011,
| Abstract | BibTex
A. Martins, M. A. T. Figueiredo, P. Aguiar, N. A. Smith, E. P. Xing, An Augmented Lagrangian Approach to Constrained MAP Inference, International Conf. on Machine Learning - ICML, Bellevue, WA, United States, Vol., pp. 169 - 176, June, 2011,
| Abstract | BibTex
A. Martins, M. A. T. Figueiredo, P. Aguiar, N. A. Smith, E. P. Xing, Online Learning of Structured Predictors with Multiple Kernels, International Conf. on Artificial Intelligence and Statistics - AISTATS, Fort Lauderdale, United States, Vol. -, pp. - - -, April, 2011,
| Abstract | Full text (PDF 634 KBs) | BibTex
A. Martins, M. A. T. Figueiredo, P. Aguiar, Online MKL for Structured Prediction, NIPS Workshop in Optimization for Machine Learning, Whistler, Canada, Vol. ?, pp. ? - ?, December, 2010,
| Abstract | BibTex
A. Martins, M. A. T. Figueiredo, P. Aguiar, N. A. Smith, E. P. Xing, Augmented Dual Decomposition for MAP Inference, NIPS Workshop in Optimization for Machine Learning, Whistler, Canada, Vol. ?, pp. ? - ?, December, 2010,
| Abstract | BibTex

Projects

Currently running projects3

Acronym	Name	Funding Agency	Start date	Ending date
DECOLLAGE	DECOLLAGE - DEep COgnition Learning for LAnguage GEneration	EU/Horizon Europe	01-08-2023	31-07-2028
NextGenAI	NextGenAI - Center for Responsible AI	IAPMEI	01-10-2021	31-12-2025
Ouvia	A User-Centered Benchmark for Usability Assessment of Speech Translation Systems	European Association for Machine Translation	02-05-2025	02-05-2026

Closed Projects7

Acronym	Name	Funding Agency	Start date	Ending date
DeepSPIN	DeepSPIN	EU/H2020	01-02-2018	01-02-2023
GoLocal	GoLocal -- From Monitoring Global Data Streams to Context-Aware Recommendations	FCT/ CMU	01-03-2016	01-02-2020
HAnDLE	Hardware Accelerated Deep Learning Framework	FCT	12-07-2018	11-07-2021
LearnBIG	Unsupervised and Semi-Supervised Learning from Big Data	FCT/PTDC	01-05-2016	01-06-2018
MAIA	Multilingual Virtual Agents for Customer Service	P2020	01-07-2020	01-07-2023
PRELUNA	Precise and Efficient Learning using Attention Mechanisms	FCT	01-01-2022	31-12-2024
UTTER	Unified Transcription and Translation for Extended Reality	EU	01-10-2022	30-09-2025

Other Scientific Achievements

1Awards

M. V. T. Treviso, F. Kepler, J. Trénous, M. Vera, A. Martins, Best Demo Paper Award ACL 2019, Best Demo Paper Award ACL 2019 for OpenKiwi, 01-07-2019

Related UN SDG

Activities from this researcher fall under the following United Nations Strategic Development Goals (SDGs):

IT Member Profile

André Martins

27-10-2025

Project Snapshot | NextGenAI: Centre for Responsible AI

03-10-2025

32 Researchers of Instituto de Telecomunicações on the Top 2% of Stanford-Elsevier Most-cited Scientists Worldwide

05-02-2025

NEWS@IT - Latest Issue

15-01-2025

CNN Inovação - Instituto de Telecomunicações

06-12-2024

AMALIA: The First Portuguese-Language LLM

15-10-2024

News@IT - Latest issue

17-01-2024

Project Snapshot | NextGenAI - Center for Responsible AI

24-10-2023

IT Researchers ranked among the Top 2% Scientists Worldwide by Stanford University

12-07-2023

Out now IT NEWS nr. 107

06-07-2023

Center for Responsible AI presents its first outcomes in healthcare sector

27-06-2023

Researchers of IT nominated to Academia das Ciências de Lisboa

18-05-2023

Instituto de Telecomunicações in the consortium of the new Center for Responsible AI

12-04-2023

How cool is your science?

31-01-2023

André Martins was awarded an ERC Consolidator Grant to study artificial neural networks applied to natural language processing

03-11-2022

IT researchers among the most-cited scientists worldwide

Scientific Achievements

As Supervisor

As Co-supervisor

As Supervisor

As Co-supervisor

Currently running projects3

Closed Projects7