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26 results on '"Lopes, Gabriel Pereira"'

1. Cross-Lingual Word Sense Clustering for Sense Disambiguation

Author

Casteleiro, João, da Silva, Joaquim Ferreira, Lopes, Gabriel Pereira, Goebel, Randy, Series editor, Tanaka, Yuzuru, Series editor, Wahlster, Wolfgang, Series editor, Pereira, Francisco, editor, Machado, Penousal, editor, Costa, Ernesto, editor, and Cardoso, Amílcar, editor

Published
2015
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2. Bilingually Learning Word Senses for Translation

Author

Casteleiro, João, Lopes, Gabriel Pereira, Silva, Joaquim, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Gelbukh, Alexander, editor

Published
2014
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4. A Document Descriptor Extractor Based on Relevant Expressions

Author

da Silva, Joaquim Ferreira, Lopes, Gabriel Pereira, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Lopes, Luís Seabra, editor, Lau, Nuno, editor, Mariano, Pedro, editor, and Rocha, Luís M., editor

Published
2009
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5. Phrase Translation Extraction from Aligned Parallel Corpora Using Suffix Arrays and Related Structures

Author

Aires, José, Lopes, Gabriel Pereira, Gomes, Luis, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Lopes, Luís Seabra, editor, Lau, Nuno, editor, Mariano, Pedro, editor, and Rocha, Luís M., editor

Published
2009
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6. Longest Sorted Sequence Algorithm for Parallel Text Alignment

Author

Ildefonso, Tiago, Lopes, Gabriel Pereira, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Moreno Díaz, Roberto, editor, Pichler, Franz, editor, and Quesada Arencibia, Alexis, editor

Published
2005
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7. Tagging with Small Training Corpora

Author

Marques, Nuno C., Lopes, Gabriel Pereira, Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Hoffmann, Frank, editor, Hand, David J., editor, Adams, Niall, editor, Fisher, Douglas, editor, and Guimaraes, Gabriela, editor

Published
2001
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16. Introduction

Author

Lopes, Gabriel Pereira, primary, da Silva, Joaquim Ferreira, additional, Rocio, Victor, additional, and Quaresma, Paulo, additional

Published
2005
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17. Introduction

Author

Lopes, Gabriel Pereira, da Silva, Joaquim Ferreira, Rocio, Victor, Quaresma, Paulo, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Bento, Carlos, editor, Cardoso, Amílcar, editor, and Dias, Gaël, editor

Published
2005
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21. Extracting Portuguese-Spanish word translations from aligned parallel texts

Author

Ribeiro, António, Lopes, Gabriel Pereira, and Mexia, João Tiago Praça Nunes

Subjects
Portuguese language, Spanish language, Word translations, Aligned parallel texts
Abstract

This paper describes a method for extracting Portuguese–Spanish word translation equivalents from aligned parallel texts. This method uses the standard loglikelihood statistics to measure the similarity between two words. Parallel texts are aligned using a simple method that extends previous work by Pascale Fung & Kathleen McKeown and Melamed. In contrast, the method in this paper does not use statistically unsupported heuristics to filter reliable correspondence points. Instead, it provides the statistical support those authors could not claim by using confidence bands of linear regressions. The points of the linear regression line are generated from the positions of homograph words which occur with the same frequency in parallel text segments. With this alignment method, we are able to extract word translation equivalents (about 90 of the best 100 are correct equivalents). This research was partially supported by a grant from Fundação para a Ciência e Tecnologia / Praxis XXI.

Published
2000

23. Longest Sorted Sequence Algorithm for Parallel Text Alignment.

Author

Moreno Díaz, Roberto, Pichler, Franz, Quesada Arencibia, Alexis, Ildefonso, Tiago, and Lopes, Gabriel Pereira

Abstract

This paper describes a language independent method for aligning parallel texts (texts that are translations of each other, or of a common source text), statistically supported. This new approach is inspired on previous work by Ribeiro et al (2000). The application of the second statistical filter, proposed by Ribeiro et al, based on Confidence Bands (CB), is substituted by the application of the Longest Sorted Sequence algorithm (LSSA). LSSA is described in this paper. As a result, 35% decrease in processing time and 18% increase in the number of aligned segments was obtained, for Portuguese-French alignments. Similar results were obtained regarding Portuguese-English alignments. Both methods are compared and evaluated, over a large parallel corpus made up of Portuguese, English and French parallel texts (approximately 250Mb of text per language). [ABSTRACT FROM AUTHOR]

Published
2005
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26. Introduction.

Author

Bento, Carlos, Cardoso, Amílcar, Dias, Gaël, Lopes, Gabriel Pereira, Silva, Joaquim Ferreira, Rocio, Victor, and Quaresma, Paulo

Abstract

This chapter contains papers presented in the workshop on Text Mining and Applications (TeMA 2005), organized in the framework of the Portuguese Association for Artificial Intelligence conference (EPIA). This workshop is aimed at attracting quality papers and enhancing the knowledge in this area. 27 papers were submitted. From these, 9 papers were selected for publication in this Springer volume. These numbers show current importance of this field in AI and suggest that the organization of equivalent events in future EPIA editions should be pursued. First paper works on bilingual lexical acquisition from non parallel corpora, applicable in Machine Translation. Second paper describes work on Text Summarization. Third uses Transformation Based learning for NP Identification applied to Portuguese.Fourth uses linguistic knowledge for passage retrieval and question answering. Fifth describes the use of weakly supervised learning for extraction of semantic patterns. Sixth paper proposes a method for semantic indexing and evaluates it on traditional Information Retrieval tasks. Seventh works on unsupervised language independent extraction of multi-word terms, applicable in multiple domains and evaluates their results for Slovene and English. Eighth paper presents a variant of a known method for Anaphora resolution, adapted to Portuguese. Last paper proposes a stemmer for Brazilian Portuguese. [ABSTRACT FROM AUTHOR]

Published
2005
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