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한국어 감정분석 코퍼스를 활용한 양상정보 기반의 감정분석 연구 : Modality-based Sentiment Analysis through the Utilization of the Korean Sentiment Analysis Corpus
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- Authors
- Issue Date
- 2016-04
- Publisher
- 사단법인 한국언어학회
- Citation
- 언어학 No.74, pp.93-114
- Abstract
- This study develops a practical application of language resources from the Korean Sentiment Analysis Corpus (KOSAC) for sentiment analysis research. With this in mind, based on their sentiment properties and the probabilistic factors of annotated expressions from KOSAC, we extracted annotated expressions and refined them to be a sentiment analysis research resource. This study attempted to break away from simple calculation methods dependant on the distribution of lexical polarity items seen in previous research. Additionally, in order to perform more sophisticated sentiment analysis, we attempted to introduce pragmatic information which includes modality. In order to achieve this, we cataloged expressions that include pragmatic information related to the speaker's attitude, based on their relative probability in KOSAC. After doing so, this study shows a practical application of this new language resource to subjectivity analysis research. When using this new resource, this research demonstrates an accuracy improvement of around 6%. This demonstrates very clearly that, in addition to polarity items, there exists a need to include a variety of aspects and lexical information when doing this type of research. Moreover, this extraction of sentiment expressions, depending on their semantic and pragmatic properties, not only shows an additional use of KOSAC, but also establishes a new resource in the field of sentiment analysis.
- ISSN
- 1225-7494
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