Difference between revisions of "João Graça"
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João Graça graduated in Informatics and Computer Science Engineering in 2002 from Instituto Superior Técnico (IST), Lisbon. He received a Masters Degree in Informatics and Computer Science Engineering in 2006, also from IST, on artificial intelligence with the development of a framework for integrating natural language tools. He was a teaching assistant in IST from (2003) to (2006) where he taught object oriented programming and compilers. He is also researcher at Spoken Language Systems Lab (L2F). | João Graça graduated in Informatics and Computer Science Engineering in 2002 from Instituto Superior Técnico (IST), Lisbon. He received a Masters Degree in Informatics and Computer Science Engineering in 2006, also from IST, on artificial intelligence with the development of a framework for integrating natural language tools. He was a teaching assistant in IST from (2003) to (2006) where he taught object oriented programming and compilers. He is also researcher at Spoken Language Systems Lab (L2F). | ||
| − | He is currently on the | + | He is currently on the fourth year of his PhD program in collaboration with the University of Pennsylvania where he passed the last years as an invited student. His PhD is focused on machine learning and natural language processing. Currently he has been involved in new learning methods for unsupervised learning with domain specific constraints. |
== Research Interests == | == Research Interests == | ||
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* Word Alignment | * Word Alignment | ||
* Machine Learning | * Machine Learning | ||
| + | * Natural Language Processing | ||
* Software Engineering applied to NLP | * Software Engineering applied to NLP | ||
Revision as of 17:06, 9 November 2009
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João Graça graduated in Informatics and Computer Science Engineering in 2002 from Instituto Superior Técnico (IST), Lisbon. He received a Masters Degree in Informatics and Computer Science Engineering in 2006, also from IST, on artificial intelligence with the development of a framework for integrating natural language tools. He was a teaching assistant in IST from (2003) to (2006) where he taught object oriented programming and compilers. He is also researcher at Spoken Language Systems Lab (L2F).
He is currently on the fourth year of his PhD program in collaboration with the University of Pennsylvania where he passed the last years as an invited student. His PhD is focused on machine learning and natural language processing. Currently he has been involved in new learning methods for unsupervised learning with domain specific constraints.
Research Interests
- Statistical Machine Translation
- Word Alignment
- Machine Learning
- Natural Language Processing
- Software Engineering applied to NLP
Ongoing Projects
- Toolkit for word alignments
- Constrained Alignment Toolkit [1]
- Gold Standard of word alignments
Finished Projects
- A computational framework for a Natural Language course
Publications
Book Chapters
2016
- J. M. Lemos, Ramon Fernandez Astudillo, Angela Costa, André Silva, Hugo Silva, João Graça, Bhiksha Raj, Crowdsourced Video Subtitling with Adaptation Based on User-Corrected Lattices, September 2016
International Journals
2011
- João Graça, Kuzman Ganchev, Luísa Coheur, Fernando Pereira, Ben Taskar, Controlling Complexity in Part-of-Speech Induction, Journal of Artificial Intelligence Research (JAIR), vol. 41, pages 527-551, September 2011
2010
- João Graça, Kuzman Ganchev, Ben Taskar, Learning Tractable Word Alignment Models with Complex Constraints, Computational Linguistics, MIT Press, pages 1-24, July 2010
- Kuzman Ganchev, João Graça, Jennifer Gillenwater, Ben Taskar, Posterior Regularization for Structured Latent Variable Models, Journal of Machine Learning Research, vol. 11, pages 2001−2, July 2010
2009
- João Graça, Kuzman Ganchev, Ben Taskar, PostCat - Posterior Constrained Alignment Toolkit, The Prague Bulletin Of Mathematical Linguistics - Special Issue: Open Source Tools for Machine Translation, Charles University, vol. 91, pages 27-37, Prague, January 2009
International Conferences
2017
- Sharon O'Brien, Chao-Hong Liu, Andy Way, João Graça, André Martins, Helena Moniz, Ellie Kemp, Rebecca Petras, The Interact Project and Crisis MT, In Proceedings of MT Summit XVI, the 16th Machine Translation Summit, Nagoya, Japan, September 2017
2015
- Diogo Miguel Coroas Prista Caetano, Moises Simões Piedade, Jorge Manuel dos Santos Ribeiro Fernandes, Tiago Costa, João Graça, Luís Filipe Soldado Granadeiro Rosado, Live Demonstration: a CMOS ASIC for Precise Reading of a Magnetoresistive Sensor Array for NDT, In IEEE Int. Symp. on Circuits and Systems (ISCAS) 2015, May 2015
2012
- Wang Ling, João Graça, Isabel Trancoso, Alan Black, Entropy-based Pruning for Phrase-based Machine Translation, In 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning, Association for Computational Linguistics, Jeju Island, Korea, July 2012
- Shen Li, João Graça, Wiki-ly Supervised Part-of-Speech Tagging, In 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning, Association for Computational Linguistics, Jeju Island, Korea, July 2012
- Shen Li, João Graça, Ben Taskar, Wiki-ly Supervised Part-of-Speech Tagging, In 2012 Joint Conference on Empirical Methods in Natural Language Processing and Computational Natural Language Learning, Jeju Island, Korea, July 2012
2011
- Wang Ling, João Graça, David Martins de Matos, Isabel Trancoso, Alan Black, Discriminative Phrase-based Lexicalized Reordering Models using Weighted Reordering Graphs, In The 5th International Joint Conference on Natural Language Processing (IJCNLP2011), pages 47-55, Chiang Mai, Thailand, November 2011
- Wang Ling, Tiago Luís, João Graça, Isabel Trancoso, Luísa Coheur, Reordering Modeling using Weighted Alignment Matrices, In Proc. ACL 2011 - The 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies, ACL, pages 450-454, , Portland, Oregon, USA, June 2011
2010
- Wang Ling, Tiago Luís, João Graça, Luísa Coheur, Isabel Trancoso, The INESC-ID Machine Translation System for the IWSLT 2010, In International Workshop on Spoken Language Translation, December 2010
- Wang Ling, Tiago Luís, João Graça, Luísa Coheur, Isabel Trancoso, Towards a General and Extensible Phrase-Extraction Algorithm, In International Workshop on Spoken Language Translation (IWSLT), December 2010
- D. Lambov, Gael Dias, João Graça, Multi-view Learning for Text Subjectivity Classification, In 19th European Conference on Artificial Intelligence Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (ECAI 2010), Lisbon, Portugal, August 2010
- J. Gillenwater, João Graça, K. Ganchev, B. Taskar, Sparsity in Dependency Grammar Induction, In ACL 2010, Association for Computational Linguistics (ACL), Uppsala, Sweden, July 2010
2009
- K. Ganchev, João Graça, B. Taskar, F. Pereira, Posterior vs. Parameter Sparsity in Latent Variable Models, In Neural Information Processing Systems Conference (NIPS), December 2009
2008
- Kuzman Ganchev, João Graça, John Blitzer, Ben Taskar, Multi-View Learning over Structured and Non-Identical Outputs, In Uncertainty in Artificial Intelligence (UAI 2008), Helsinki, Finland, July 2008
- Kuzman Ganchev, João Graça, Ben Taskar, Better Alignments = Better Translations?, In ACL-08: HLT, Association for Computational Linguistics, pages 986-993, , Columbus, Ohio, June 2008
- João Graça, Joana Paulo Pardal, Luísa Coheur, Diamantino António Caseiro, Building a golden collection of parallel Multi-Language Word Alignment, In The 6th International Conference on Language Resources and Evaluation, LREC 2008, Marrakech, Morocco, May 2008
2007
- João Graça, Kuzman Ganchev, Ben Taskar, Expectation Maximization and Posterior Constraints, In Neural Information Processing Systems Conference (NIPS), Vancouver, BC, Canada, December 2007
- João Graça, Diamantino António Caseiro, Luísa Coheur, The INESC-ID IWSLT07 SMT System, In Proceedings of IWSLT International Workshop on Spoken Language Translation, pages 125-130, October 2007
- Mark Dredze, John Blitzer, Pratha Pratim Talukdar, Kuzman Ganchev, João Graça, Fernando Pereira, Frustratingly Hard Domain Adaptation for Parsing, In Conference on Computational Natural Language Learning, Association for Computational Linguistics, Prague, Czech Republic, June 2007
2006
- João Graça, Nuno J. Mamede, João Carlos Serrenho Dias Pereira, A Framework for Integrating Natural Language Tools, In PROPOR'2006 - Computational Processing of the Portuguese Language, Springer Verlag, Berlin / Heidelberg, vol. 3960, series Lecture Notes in Computer Science, pages 110-119, Itatiaia, Brazil, May 2006
- João Graça, Nuno J. Mamede, João Carlos Serrenho Dias Pereira, NLP Tools Integration Using a Multi-Layered Repository, In Merging and Layering Linguistic Information Workshop, a satellite of the 5th Edition of the International Conference on Language Resource and Evaluation, LREC, pages 24-32, Genova, Italy, May 2006
2005
- João Graça, Márcio Duarte Albasini Mourão, Orlando Anunciação, Pedro T. Monteiro, H. Sofia Pinto, Virgilio Loureiro, Ontology building process: the wine domain, In EFITA/WCCA 2005, Vila Real, July 2005
2004
- João Graça, Nuno J. Mamede, João Carlos Serrenho Dias Pereira, A Run-Time Shared Repository for NLP Applications, In Proceedings of the Herramientas y Recursos Linguísticos para el Español y el Portugués workshop, a satelite of the Ninth, pages 257-264, Puebla, Mexico, November 2004
2002
- David Martins de Matos, Alexandre Manuel Fonseca Mateus, João Graça, Nuno J. Mamede, Empowering the User: a Data-oriented Application-building Framework, In Adjunct Proc. UI4ALL'2002 - 7th ERCIM Workshop "User Interfaces for All", Chantilly, France, October 2002
National Journals
2009
- João Graça, Diamantino António Caseiro, Luísa Coheur, Tradução Automática Estatística, 3Ts - Revista de Tradução, Terminologia e Tecnologias, n. 0, pages 91-102, December 2009
Technical Reports
2014
- Anabela Barreiro, Luísa Coheur, Tiago Luís, Angela Costa, Fernando Batista, João Graça, Isabel Trancoso, Multiword and Semantico-Syntactic Unit Alignments, Tech. Rep. 23 / 2014 INESC-ID Lisboa, December 2014
2012
- Anabela Barreiro, Luísa Coheur, Tiago Luís, Angela Costa, João Graça, CLUE Guidelines, Tech. Rep. 17 / 2012 INESC-ID Lisboa, June 2012
2008
- João Graça, Joana Paulo Pardal, Luísa Coheur, Diamantino António Caseiro, Multi-Language Word Alignments Annotation Guidelines, Tech. Rep. 38 / 2008 INESC-ID Lisboa, April 2008
Doctoral Theses
2010
- João Graça, Posterior Regularization Framework: Learning Tractable Models with Intractable Constraints, PhD thesis, Instituto Superior Técnico, Lisboa, July 2010
Masters Theses
2006
- João Graça, A Framework for Integrating Natural Language Tools, MSc thesis, Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisbon, Portugal, April 2006
Graduation Theses
2002
- João Graça, Alexandre Manuel Fonseca Mateus, Creating Resources for Natural Language Students, Graduation thesis, December 2002