Publication Bibtex

A Large Opinion Corpus in Portuguese: Tackling Out-Of-Vocabulary Words (bibtex)
by Hartmann, Nathan Siegle; Avanço, Lucas Vinicius; Balage Filho, Pedro Paulo; Duran, Magali; Nunes, Maria das Graças Volpe; Pardo, Thiago Alexandre Salgueiro; Aluísio, Sandra Maria
Abstract:
Web 2.0 has allowed a never imagined communication boom. With the widespread use of computational and mobile devices, anyone, in practically any language, may post comments in the web. As such, formal language is not necessarily used. In fact, in these communicative situations, language is marked by the absence of more complex syntactic structures and the presence of internet slang, with missing diacritics, repetitions of vowels, and the use of chat-speak style abbreviations, emoticons and colloquial expressions. Such language use poses severe new challenges for Natural Language Processing (NLP) tools and applications, which, so far, have focused on well-written texts. In this work, we report the construction of a large web corpus of product reviews in Brazilian Portuguese and the analysis of its lexical phenomena, which support the development of a lexical normalization tool for, in future work, subsidizing the use of standard NLP products for web opinion mining and summarization purposes.

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Reference:
N. S. Hartmann, L. V. Avanço, P. P. Balage Filho, M. Duran, M. d. G. V. Nunes, T. A. S. Pardo, S. M. Aluísio, "A Large Opinion Corpus in Portuguese: Tackling Out-Of-Vocabulary Words", in Proceedings of the 9th edition of the Language Resources and Evaluation Conference (LREC), 2014, pp. 3865-3871.
Bibtex Entry:
@InProceedings{Hartmann2014LargeOpinionCorpus,
  Title                    = {A Large Opinion Corpus in Portuguese: Tackling Out-Of-Vocabulary Words},
  Author                   = {Hartmann, Nathan Siegle and Avan\c{c}o, Lucas Vinicius and {Balage Filho}, Pedro Paulo and Duran, Magali and Nunes, Maria das Gra\c{c}as Volpe and Pardo, Thiago Alexandre Salgueiro and Alu\'{\i}sio, Sandra Maria},
  Booktitle                = {Proceedings of the 9th edition of the Language Resources and Evaluation Conference (LREC)},
  Year                     = {2014},

  Address                  = {Reykjavik, Iceland},
  Month                    = {26--31~} # may,
  Pages                    = {3865--3871},

  Abstract                 = {Web 2.0 has allowed a never imagined communication boom. With the widespread use of computational and mobile devices, anyone, in practically any language, may post comments in the web. As such, formal language is not necessarily used. In fact, in these communicative situations, language is marked by the absence of more complex syntactic structures and the presence of internet slang, with missing diacritics, repetitions of vowels, and the use of chat-speak style abbreviations, emoticons and colloquial expressions. Such language use poses severe new challenges for Natural Language Processing (NLP) tools and applications, which, so far, have focused on well-written texts. In this work, we report the construction of a large web corpus of product reviews in Brazilian Portuguese and the analysis of its lexical phenomena, which support the development of a lexical normalization tool for, in future work, subsidizing the use of standard NLP products for web opinion mining and summarization purposes.},
  ISBN                     = {978-2-9517408-8-4},
  PDF                      = {http://www.pedrobalage.com/pubs/Hartmann2014LargeOpinionCorpus.pdf},
  Demo                     = {http://nilc.icmc.usp.br/semanticnlp/LexicalNormalization/}
}
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