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A Korean Document Sentiment Classification System based on Semantic Properties of Sentiment Words  

Hwang, Jae-Won (동아대학교 컴퓨터공학과)
Ko, Young-Joong (동아대학교 컴퓨터공학과)
Publication Information
Journal of KIISE:Software and Applications / v.37, no.4, 2010 , pp. 317-322 More about this Journal
Abstract
This paper proposes how to improve performance of the Korean document sentiment-classification system using semantic properties of the sentiment words. A sentiment word means a word with sentiment, and sentiment features are defined by a set of the sentiment words which are important lexical resource for the sentiment classification. Sentiment feature represents different sentiment intensity in general field and in specific domain. In general field, we can estimate the sentiment intensity using a snippet from a search engine, while in specific domain, training data can be used for this estimation. When the sentiment intensity of the sentiment features are estimated, it is called semantic orientation and is used to estimate the sentiment intensity of the sentences in the text documents. After estimating sentiment intensity of the sentences, we apply that to the weights of sentiment features. In this paper, we evaluate our system in three different cases such as general, domain-specific, and general/domain-specific semantic orientation using support vector machine. Our experimental results show the improved performance in all cases, and, especially in general/domain-specific semantic orientation, our proposed method performs 3.1% better than a baseline system indexed by only content words.
Keywords
Sentiment word; Sentiment Feature; Sentiment Classification; Semantic Orientation;
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Times Cited By KSCI : 2  (Citation Analysis)
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