Abstract
In recent years there has been an increasing interest in techniques for dealing with the compositionality of meaning. In fact, to derive the meaning of complex expressions (i.e. phrases and sentences) from the meanings of their parts has grabbed the researchers’ attention. In this paper, we examine semantic composition from the perspective of sentiment composition: if the meaning of a sentence is a function of the meanings of its parts, the polarity of a sentence is a function of the polarities of its parts. Basically, we propose a model based on sentential sentiment composition in order to categorise a text review (i.e. an opinion) according to the polarity of the sentences it contains. The experimental results showed that our approach is a plausible alternative to categorise subjective texts.
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Notes
- 1.
Since the sentiment classes are represented by a rank from 0 to 4, the value to be assigned to the threshold must be given in this rank. The best threshold values in our experimentation were: Books (2.60), Computers (2.45), Movies (2.65) and Music (2.75).
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Uribe, D. (2016). Text Categorisation by Using Sentiment Composition. In: Quesada, J., Martín Mateos, FJ., Lopez-Soto, T. (eds) Future and Emergent Trends in Language Technology. FETLT 2015. Lecture Notes in Computer Science(), vol 9577. Springer, Cham. https://doi.org/10.1007/978-3-319-33500-1_8
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DOI: https://doi.org/10.1007/978-3-319-33500-1_8
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