André F. T. Martins
my picture Contact information:

afm AT CS DOT CMU DOT EDU

Priberam
Alameda D. Afonso Henriques, 41 - 2.º Andar
1000-123 Lisboa - Portugal

Phone: +351 217817260 / +351 919458208
Fax: +351 217817279

Priberam logo


I am a Research Scientist at Priberam Labs in Lisbon, Portugal. I work on natural language processing and machine learning. I am also affiliated with the Instituto de Telecomunicações, at Instituto Superior Técnico.

Until recently, I was a PhD student in the joint CMU-Portugal program in Language Technologies, at Carnegie Mellon University and Instituto Superior Técnico. My advisors were Mário Figueiredo, Noah Smith, Pedro Aguiar and Eric Xing.

News

  • We had two papers accepted at ACL 2013.

  • I received the Portuguese IBM Scientific Prize for my work in structured prediction and "Turbo Parsing."

  • I am co-organizing LxMLS 2013 (Lisbon Machine Learning School). See here for details!

  • I successfully defended my thesis in May 11, 2012, at CMU!

  • I am presenting a tutorial on "Structured Sparsity in NLP" at NAACL. The slides are available here.


Publications


2013

  • André F. T. Martins, Miguel B. Almeida, and Noah A. Smith.
    "Turning on the Turbo: Fast Third-Order Non-Projective Turbo Parsers."
    Annual Meeting of the Association for Computational Linguistics (ACL'13), Sofia, Bulgaria, August 2013.
    [pdf] [code]

  • Miguel B. Almeida and André F. T. Martins.
    "Fast and Robust Compressive Summarization with Dual Decomposition and Multi-Task Learning."
    Annual Meeting of the Association for Computational Linguistics (ACL'13), Sofia, Bulgaria, August 2013.
    [pdf]

  • Dipanjan Das, Desai Chen, André F. T. Martins, Nathan Schneider, and Noah A. Smith.
    "Frame-Semantic Parsing."
    Computational Linguistics.
    [pdf]


2012

  • André F. T. Martins.
    "The Geometry of Constrained Structured Prediction: Applications to Inference and Learning of Natural Language Syntax."
    PhD Thesis, Carnegie Mellon University and Instituto Superior Tecnico.
    Carnegie Mellon SCS Dissertation Award, Honorable Mention.
    [pdf]

  • Dipanjan Das, André F. T. Martins, and Noah A. Smith.
    "An Exact Dual Decomposition Algorithm for Shallow Semantic Parsing with Constraints."
    First Joint Conference on Lexical and Computational Semantics (*SEM 2012), Montreal, Canada.
    [pdf]


2011

  • André F. T. Martins, Noah A. Smith, Mário A. T. Figueiredo, Pedro M. Q. Aguiar.
    "Dual Decomposition With Many Overlapping Components."
    Empirical Methods in Natural Language Processing (EMNLP'11), Edinburgh, UK, July 2011.
    [pdf] [supplementary material pdf]

  • André F. T. Martins, Noah A. Smith, Mário A. T. Figueiredo, Pedro M. Q. Aguiar.
    "Structured Sparsity in Structured Prediction."
    Empirical Methods in Natural Language Processing (EMNLP'11), Edinburgh, UK, July 2011.
    [pdf]

  • André F. T. Martins, Mário A. T. Figueiredo, Pedro M. Q. Aguiar, Noah A. Smith, and Eric P. Xing.
    "An Augmented Lagrangian Approach to Constrained MAP Inference."
    International Conference on Machine Learning (ICML'11), Bellevue, Washington, USA, June 2011.
    [pdf] [supplementary material pdf]

  • André F. T. Martins, Noah A. Smith, Eric P. Xing, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "Online Learning of Structured Predictors with Multiple Kernels."
    International Conference on Artificial Intelligence and Statistics (AISTATS'11), Ft Lauderdale, USA.
    Geoffrey Gordon, David Dunson, and Miroslav Dudík, eds. JMLR W&CP, vol. 15, 2011.
    [pdf]


2010

  • André F. T. Martins, Noah A. Smith, Eric P. Xing, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "Augmented Dual Decomposition for MAP Inference."
    NIPS Workshop in Optimization for Machine Learning, Whistler, Canada, December 2010.
    [pdf]

  • André F. T. Martins, Noah A. Smith, Eric P. Xing, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "Online MKL for Structured Prediction."
    NIPS Workshop in New Directions in Multiple Kernel Learning, Whistler, Canada, December 2010.
    [pdf]

  • André F. T. Martins, Noah A. Smith, Eric P. Xing, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "TurboParsers: Dependency Parsing by Approximate Variational Inference."
    Empirical Methods in Natural Language Processing (EMNLP'10), Boston, USA, October 2010.
    [pdf]   [extended, pdf]   [erratum!, txt]

  • André F. T. Martins, Kevin Gimpel, Noah A. Smith, Eric P. Xing, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "Learning Structured Classifiers with Dual Coordinate Ascent"
    Technical report CMU-ML-10-109.
    [pdf]

  • M. Bicego, A. Perina, V. Murino, A. Martins, P. Aguiar, M. Figueiredo.
    "Combining free energy score spaces with information theoretic kernels: application to scene classification."
    IEEE International Conference on Image Processing (ICIP'10), Hong Kong, 2010.

  • M. Figueiredo, P. Aguiar, A. Martins, V. Murino, M. Bicego.
    "Information theoretical kernels for generative embeddings based on hidden Markov models." Joint IAPR International Workshops on Structural, Syntactic, and Statistical Pattern Recognition (S+SSPR'10), Cesme, Izmir, Turkey, 2010.

  • M. Bicego, A. Martins, V. Murino, P. Aguiar, M. Figueiredo.
    "2D shape recognition using information theoretic kernels."
    IAPR International Conference on Pattern Recognition (ICPR'2010), Istanbul, Turkey, 2010.


2009

  • André F. T. Martins, Noah A. Smith, and Eric P. Xing.
    "Concise Integer Linear Programming Formulations for Dependency Parsing."
    Annual Meeting of the Association for Computational Linguistics (ACL'09), Singapore, August 2009.
    Best Paper Award.
    [pdf]

  • André F. T. Martins, Noah A. Smith, and Eric P. Xing.
    "Polyhedral Outer Approximations with Application to Natural Language Parsing."
    International Conference on Machine Learning (ICML'09), Montreal, Canada, June 2009.
    [pdf]

  • André F. T. Martins, Mário A. T. Figueiredo, Pedro M. Q. Aguiar, Noah A. Smith, and Eric P. Xing.
    "Nonextensive Information Theoretic Kernels on Measures."
    Journal of Machine Learning Research, 2009, vol.10, pp.935-975
    [pdf]

  • André F. T. Martins and Noah A. Smith.
    "Summarization with a Joint Model for Sentence Extraction and Compression."
    NAACL-HLT Workshop on Integer Linear Programming for NLP, Boulder, USA, June 2009.
    [pdf]


2008

  • André F. T. Martins, Dipanjan Das, Noah A. Smith, and Eric P. Xing.
    "Stacking dependency parsers."
    Empirical Methods in Natural Language Processing (EMNLP'08), Honolulu, Hawaii, October 2008.
    [pdf]

  • André F. T. Martins, Mário A. T. Figueiredo, Pedro M. Q. Aguiar, Noah A. Smith, and Eric P. Xing.
    "Nonextensive entropic kernels."
    Technical report CMU-ML-08-106, 2008
    [pdf]

  • André F. T. Martins, Mário A. T. Figueiredo, Pedro M. Q. Aguiar, Noah A. Smith, and Eric P. Xing.
    "Nonextensive entropic kernels."
    International Conference on Machine Learning ICML'08, Helsinki,
    Finland, July 2008.
    [pdf]

  • André F. T. Martins, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo.
    "Nonextensive Generalizations of the Jensen-Shannon Divergence."
    Submitted for publication, 2008.
    [arXiv]

  • André F. T. Martins, Pedro M. Q. Aguiar, and Mário A. T. Figueiredo
    "Tsallis kernels on measures."
    IEEE Information Theory Workshop ITW'08, Porto, Portugal.
    May 2008
    [pdf]


2007

  • Dipanjan Das, André F.T. Martins.
    “A Survey on Automatic Text Summarization.”
    Literature Survey for the Language and Statistics II course at CMU, November, 2007.
    [pdf]

  • C. Amaral, A. Cassan, H. Figueira, A. Martins, A. Mendes, P. Mendes, C. Pinto, D. Vidal.
    "Priberam's Question Answering System in QA@CLEF 2007."
    Working Notes for the Cross Language Evaluation Forum (CLEF), 2007.
    [pdf]

  • André F. T. Martins, Mário A. T. Figueiredo, Pedro M. Q. Aguiar.
    "Kernels and Similarity Measures for Text Classification."
    In Proceedings 6th Conference on Telecommunications, Peniche, Portugal, 2007.
    [pdf]


2006

  • André F. T. Martins.
    "Generative kernels."
    Technical report, Inst. Sup. Técnico, UTL, Lisbon, Portugal.
    [pdf]

  • A. Cassan, H. Figueira, A. Martins, A. Mendes, P. Mendes, C. Pinto and D. Vidal.
    "Priberam's Question Answering System in a Cross-Language Environment."
    CLEF, Lecture Notes in Computer Science, Vol. 4730, pp. 300-309, Springer, 2006.
    Working notes version:     [pdf]


2005

  • C. Amaral, H. Figueira, A. Martins, A. Mendes, P. Mendes, C. Pinto.
    "Priberam's Question Answering System for Portuguese."
    CLEF, Lecture Notes in Computer Science, Vol. 4022, pp. 410-419, Springer, 2005.
    Working notes version:     [pdf]

  • A. Martins.
    "Orientação Automática na Baixa Pombalina: classes de equiprojectividade e estimação sequencial a partir de vídeo."
    Lisbon, 2005 (unpublished manuscript in Portuguese).
    [pdf]

  • A. Martins, P. Aguiar and M. Figueiredo.
    "Orientation in Manhattan: Equiprojective Classes and Sequential Estimation."
    IEEE Trans. on Pattern Analysis and Machine Intelligence (PAMI), vol.
    27, no. 5, pp. 822-827, May 2005.
    [pdf] [movie #1] [movie #2] [movie #3]


2004

  • A. Martins, A. Mendes, C. Amaral, C. Pinto and D. Laurent.
    "Design and Implementation of a Semantic Search Engine for Portuguese."
    Proceedings of 4th International Conference on Language Resources and Evaluation (LREC),
    Lisbon, Portugal, May 2004.
    [pdf]

2003

  • A. Martins, P. Aguiar and M. Figueiredo.
    "Navigating in Manhattan: 3D Orientation From Video Without Correspondences."
    Proceedings of IEEE International Conference on Image Processing (ICIP),
    Barcelona, Spain, September 2003.
    [pdf]