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Language, Individual & Society, Volume 8, 2014

Kong Joo Lee, Jee Eun Kim
Pages: 139-149
Published: 25 Aug 2014
Views: 2,943
Downloads: 704
Abstract: This research aims to classify Korean modal expressions influencing a sentiment value. With frequent and easy access to the web, user-generated online texts are easily created in great quantities and usually contain opinions which express the user’s sentiments. Sentiments are identified from a given opinion and evaluated to determine the final polarity value of an entity occurring in the text. However, the accuracy of evaluating the polarity is not satisfying if the number of sentiment words appearing in the text is simply counted to interpret their semantic orientations. In particular, polarity values are affected by contextual words or expressions, some of which are represented utilizing modality. The modal expressions are constructed with mood or a modal system in Korean. The irrealis in particular convert a sentiment value to a hypothetical or unlikely state, in which interpretation of the sentiment has to be approached differently. Modality affects the polarity value of a sentiment in various ways which include diminishing, intensifying or removing the polarity value at all. Therefore, correctly interpreting modality plays a crucial role in assigning an accurate polarity value. This paper focuses on classifying Korean modal expressions which influence interpreting sentiments. Their structures are also discussed since Korean modality presents a complex predicate, utilizing modal suffixes, auxiliaries, and modal verbs.
Keywords: sentiment analysis, polarity value, modal meaning, mood, modal systems
Cite this article: Kong Joo Lee, Jee Eun Kim. OPINION MINING BASED ON MODAL MEANINGS. Journal of International Scientific Publications: Language, Individual & Society 8, 139-149 (2014).
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