News Degrees Awards Publications Contacts
Since december 2019, I am Head of Research at Cleverly in Lisbon, Portugal. We drive NLP (Natural Language Processing) and ML (Machine Learning) to make customer support teams more efficient.
Before that I worked as a researcher in industry for 6 years: 4 years at Priberam Labs where I explored ML and NLP methods and 2 years at Feedzai where I worked on ML and deep learning methods for fraud prevention.
Until 2013 I mostly worked on image processing in academia. I was a Postdoc fellow at IT of Lisbon, working on image reconstruction and optimization under the supervision of Mário A. T. Figueiredo. And my PhD was in the field of blind image separation and blind deconvolution, under the supervision of Luís B. Almeida
News
-
Hiring: Cleverly got a european SME Innovation Associate grant to hire a PhD in NLP or a Researcher with equivalent experience for one year. If you are interested, see more details here or contact me!
-
Hiring: Cleverly has opened Internships on ML and NLP projects. If you are interested, please contact me.
-
I am co-organizing LxMLS 2020. This year LxMLS will be a fully on-line school.
-
In december 2019 I joined Cleverly :-) We are building AI-driven solutions that make customer support teams more efficient!
Degrees
-
PhD in Electrical and Computer Engineer (2010) from Instituto Superior Técnico (IST), Universidade de Lisboa (ULisboa).
PhD Thesis: “Blind separation and blind deblurring of natural images,” Instituto Superior Técnico (IST), October, 2010. -
Five year degree in Electrical and Computer Engineer (2005) from Instituto Superior Técnico (IST), Universidade de Lisboa (ULisboa).
Final Project: “Extensions to Denoising Source Separation,” Neural Networks Research Center of the Helsinki University of Technology (HUT; now Aalto University); Instituto Superior Técnico (IST), October, 2005.
Awards
-
Honorable mention at the Portuguese IBM Scientific Prize in 2010, for her work on blind image deblurring.
-
Prémio Prof. Luís Vidigal 2004/2005, for her final project on on extensions to denoising source separation.
Publications
Patents
- National Patent: “Processo de focagem cega de imagens,” BPI: 246/2009, 2009.
Journals
-
Mariana S. C. Almeida and Mário A. T. Figueiredo,
“Deconvolving images with unknown boundaries using the alternating direction method of multipliers,”
IEEE Trans. Image Processing, vol. 22, No. 8, pp. 3074-3086, 2013.
[Abstract and MATLAB code] -
Mariana S. C. Almeida and Mário A. T. Figueiredo,
“Stopping Criteria for Iterative Blind and Non-Blind Image Deblurring Algorithms Based on Residual Whiteness Measures,”
IEEE Trans Image Processing, vol. 22, nº7, pp.2751-63, 2013.
[Abstract and MATLAB code] -
Mariana S. C. Almeida and Luís B. Almeida,
“Nonlinear separation of a show-through mixing model using a physical model trained with ICA,”
Signal Processing, Vol 92, issue 4, pp. 872-884, April, 2012.
[Abstract, Bi-affine separability and data] -
Mariana S. C. Almeida and Luís B. Almeida,
“Blind and Semi-Blind Deblurring of Natural Images,”
IEEE Trans. Image Processing, Vol.19, pp. 36-52, January, 2010.
[Abstract and MATLAB code]
Top 10 most accessed articles of IEEE Trans. Image Processing on March 2010
Top 100 IEEE most accessed articles during the months of January, February and March 2010 -
Mariana S. C. Almeida and Luís B. Almeida,
“Wavelet-based separation of nonlinear show-through and bleed-through image mixtures,”
Neurocomputing, Vol. 72, pp. 57-70, December, 2008.
[Abstract, data and MATLAB code]
Conferences
-
Bruno Jardin, Ricardo Rei, Mariana S. C. Almeida,
“Multilingual Email Zoning,”
Annual Meeting of the European Chapter of the Association for Computational Linguistics (EACL’21) SRW, 2021.
[Cleverly Multilingual Zoning Corpora] -
Bernardo Branco, Pedro Abreu, Ana Sofia Gomes, Mariana S. C. Almeida, João Tiago Ascensão, Pedro Bizarro,
“Interleaved Sequence RNNs for Fraud Detection,”
ACM SIGKDD Conference on Knowledge Discovery and Data Mining 2020, Applied Data Science Track KDD ’20, 2020. -
Afonso Mendes, David Nogueira, Samuel Broscheit, Filipe Aleixo, Pedro Balage, Rui Martins, Sebastião Miranda and Mariana S. C. Almeida,
“SUMMA at TAC Knowledge Base Population Task 2017,”
Proceedings of the Text Analysis Conference (TAC) KBP 2017, National Institute of Standards and Technology, Gaithersburg, Maryland USA, 2018. -
Renars Liepins, Ulrich Germann, Guntis Barzdins, Alexandra Birch, Steve Renals, Susanne Weber, Peggy van der Kreeft, Herve Bourlard, João Prieto, Ondrej Klejch, Peter Bell, Alexandros Lazaridis, Afonso Mendes, Sebastian Riedel, Mariana S. C. Almeida, Pedro Balage, Shay B. Cohen, Tomasz Dwojak, Philip N. Garner, Andreas Giefer, Marcin Junczys-Dowmunt, Hina Imran, David Nogueira, Ahmed Ali, Sebastião Miranda, Andrei Popescu-Belis, Lesly Miculicich Werlen, Nikos Papasarantopoulos, Abiola Obamuyide, Clive Jones, Fahim Dalvi, Andreas Vlachos, Yang Wang, Sibo Tong, Rico Sennrich, Nikolaos Pappas, Shashi Narayan, Marco Damonte, Nadir Durrani, Sameer Khurana, Ahmed Abdelali, Hassan Sajjad, Stephan Vogel, David Sheppey, Chris Hernon,
“The SUMMA Platform Prototype,”
Proceedings of the EACL 2017 Software Demonstrations, Valencia, Spain, April 3-7 2017, pages 116–119. -
Peteris Paikens, Guntis Barzdins, Afonso Mendes, Daniel C. Ferreira, Samuel Broscheit, Mariana S. C. Almeida, Sebastião Miranda, David Nogueira, Pedro Balage, André F. T. Martins,
“SUMMA at TAC Knowledge Base Population Task 2016,”
Proceedings of the Text Analysis Conference (TAC) KBP 2016, National Institute of Standards and Technology, Gaithersburg, Maryland USA, 2017. -
Daniel C. Ferreira, André F. T. Martins, and Mariana S. C. Almeida,
“Jointly Learning to Embed and Predict with Multiple Languages,”
Annual Meeting of the Association for Computational Linguistics (ACL’16), Berlin, Germany, August 2016
[Code] -
Afonso M. A. M. Teodoro, Mariana S. C. Almeida and Mário A. T. Figueiredo,
“Single-frame Image Denoising and Inpainting Using Gaussian Mixtures,”
International Conference on Pattern Recognition Applications and Methods (ICPRAM 2015), Lisbon, Portugal, 2015. -
Mariana S. C. Almeida, Cláudia Pinto, Helena Figueira, Pedro Mendes and André F. T. Martins,
“Aligning Opinions: Cross-Lingual Opinion Mining with Dependencies,”
Annual Meeting of the Association for Computational Linguistics (ACL’15), Beijing, China, July 2015.
[Corpus] -
Mariana S. C. Almeida and André F. T. Martins,
“Lisbon: Evaluating TurboSemanticParser on Multiple Languages and Out-of-Domain Data,”
Proceedings of International Workshop on Semantic Evaluation (SemEval’15), task 18: Broad Coverage Semantic Dependency Parsing, Denver, USA, June 2015.
[Code] -
André F. T. Martins and Mariana S. C. Almeida,
“Priberam: A Turbo Semantic Parser with Second Order Features,”
Proceedings of International Workshop on Semantic Evaluation (SemEval’14), task 8: Broad Coverage Semantic Dependency Parsing, Dublin, Ireland, August 2014.
[Code]
Best system of the shared task -
Mariana S. C. Almeida, Miguel B. Almeida, and André F. T. Martins,
“A Joint Model For Quotation Attribution and Coreference Resolution,”
Annual Meeting of the European Chapter of the Association for Computational Linguistics (EACL’14), Gothenburg, Sweden, April 2014. -
Miguel B. Almeida, Mariana S. C. Almeida, André F. T. Martins, Helena Figueira, Pedro Mendes, and Cláudia Pinto,
“A New Multi-Document Summarization Corpus for European Portuguese,”
Proceedings of the Language Resources and Evaluation Conference (LREC’14), Reykjavik, Iceland, May 2014. -
Mariana S. C. Almeida and Mário A. T. Figueiredo,
“Frame-based image deblurring with unknown boundary conditions using the Alternating Direction Method of Multipliers,”
IEEE International Conf. on Image Processing – ICIP’2013, Melbourne, Australia, September, 2013. -
Mariana S. C. Almeida and Mário A. T. Figueiredo,
“Blind Image Deblurring with Unknown Boundaries Using the Alternating Direction Method of Multipliers,”
IEEE International Conf. on Image Processing – ICIP’2013, Melbourne, Australia, September, 2013.
[Abstract, data and MATLAB code] -
Mariana S. C. Almeida, André Abelha and Luís B. Almeida,
“Multi-resolution approach for blind deblurring of natural images”,
IEEE International Conference on Image Processing – ICIP’2012, 30 Set. – 3 Out., Orlando, Florida, EUA,2012. -
Mariana S. C. Almeida and Mário A. T. Figueiredo,
“New stopping criteria for iterative blind image deblurring based on residual whiteness measures,”
IEEE Workshop on Statistical Signal Processing – SSP’2011, Nice, France, 2011.
[MATLAB code]. -
Mariana S. C. Almeida and Luís B. Almeida,
“Blind deblurring of foreground-background images,”
IEEE International Conference on Image Processing – ICIP’2009, Cairo, Egypt, 2009. [Poster] -
Mariana S. C. Almeida and Luís B. Almeida,
“Blind deblurring of natural images,”
IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP’ 2008, March, Las Vegas, 2008.
[Poster] [MATLAB code] -
Mariana S. C. Almeida and Luís B. Almeida,
“Separating Nonlinear Image Mixtures Using a Physical Model Trained with ICA,”
Proc. IEEE Int. Worksh. Machine Learning for Signal Processing 2006 – MLSP’2006, Maynooth, Ireland, Vol.1, pp. 65 – 70, September, 2006. -
Mariana S. C. Almeida and Luís B. Almeida,
“Wavelet Based Nonlinear Separation of Images,”
Proc. IEEE Int. Worksh. Machine Learning for Signal Processing – MLSP’2006, Maynooth, Ireland, Vol.1, pp. 53 – 58 , September, 2006. -
Mariana S. C. Almeida, Harri Valpola and Jaakko Särelä,
“Separation of a Nonlinear Image Mixtures by Denoising Source Separation,”
Proc. of the 6th International Conference on Independent Component Analysis and Blind Signal Separation – ICA’2006, Charleston, S.C., USA, pp. 8-15, 2006.
[Poster] [Abstract, data and MATLAB code]