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Automatic alignment of common information in comparable sentences of Portuguese

Published: 26 October 2008 Publication History

Abstract

The ability to recognize distinct word sequences which refer to the same meaning is of extreme relevance for many applications in NLP, such as automatic summarization, question answering, generation, etc. In this paper we describe our first attempt at aligning common information between portuguese similar sentences. We propose a method based on lexical and syntatic information and some paraphrase rules to find different strings with the same meaning. A preliminary experiment suggests that the method has potential for identifying strings which are semantically related but lexically different, as is the case of lexical paraphrases.

References

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Barzilay, R. 2003. Information Fusion for Multidocument Summarization: Paraphrasing and Generation. Phd. Thesis, Columbia University, New York, 221 p.
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Barzilay, R. and McKeown, K. 2005. Sentence Fusion for Multi-document News Summarization. Computational Linguistics, Vol. 31, n° 3, pp. 297--327.
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Bick, Eckhard. 2000. The Parsing System "Palavras" - Automatic Grammatical Analysis of Portuguese in a Constraint Grammar Framework. Aarhus University Press.
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Dias-da-Silva, B. C., Di Felippo, A., and Hasegawa, R. 2006. Methods and Tools for Encoding the WordNet.Br Sentences, Concept Glosses and Conceptual-Semantic Relations. In Proceedings of the 7th Workshop on Computational Processing of the Portuguese Language - Written and Spoken - PROPOR (Lecture Notes in Artificial Intelligence, 3960), pp. 120--130.
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Dras, M. 1999. Tree Adjoining Grammar and the Reluctant Paraphrasing of Text. Phd. Thesis, Macquarie University, Australia, 282 p.
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Hoey, M. 1991. Patterns of Lexis in Text. Oxford: Oxford University Press.
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Marsi, E. and Krahmer, E. 2005. Explorations in Sentence Fusion. In Proceedings of the 10th European Workshop on Natural Language Generation -- ENLG' 2005, pp. 109--117.
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Marsi, E. and Krahmer, E. 2007. Annotating a parallel monolingual treebank with semantic similarity relations. In Proceedings of the Sixth International Workshop on Treebanks and Linguistic Theories -- TLT'07.
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Pang, B., Knight, K., and Marcu, D. 2003. Syntax-based Alignment of Multiple Translations: Extracting Paraphrases and Generating New Sentences. In Proceedings of the Human Language Technology Conference -- HLT/NAACL, pp. 102--109.
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Seno, E. R. M. and Nunes, E. R. M. 2008. Some Experiments on Clustering Similar Sentences of Texts in Brazilian Portuguese. In: Proceedings of the International Conference on Computational Processing of Portuguese Language - PROPOR (Lecture Notes in Artificial Intelligence, 5190), pp. 133--144.
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Shen, S., Radev, D. R., Patel, A., and Erkan, G. 2006. Adding Syntax to Dynamic Programming for Aligning Comparable Texts for the Generation of Paraphrases. In Proceedings of the COLING/ACL 2006, pp. 747--754.

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  1. Automatic alignment of common information in comparable sentences of Portuguese

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    WebMedia '08: Companion Proceedings of the XIV Brazilian Symposium on Multimedia and the Web
    October 2008
    420 pages
    ISBN:9788576691990
    DOI:10.1145/1809980

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    • SBC: Brazilian Computer Society

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 26 October 2008

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    1. common information alignment
    2. comparable sentences
    3. paraphrase rules

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    WebMedia08
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    WebMedia08: 14th Brazilian Symposium on Multimedia and Web Systems
    October 26 - 29, 2008
    Espírito Santo, Vila Velha, Brazil

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