A Large Opinion Corpus in Portuguese - Tackling Out-Of-Vocabulary Words

  • Hartmann N
  • Avanço L
  • Balage Filho P
  • et al.
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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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APA

Hartmann, N. S., Avanço, L. V., Balage Filho, P. P., Duran, M., Nunes, M. das G. V., Pardo, T. A. S., & Aluísio, S. M. (2014). 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) (pp. 3865–3871). Reykjavik. Retrieved from http://www.lrec-conf.org/proceedings/lrec2014/pdf/413_Paper.pdf

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