Journal of KIISE (정보과학회 논문지)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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Automatic Construction of a Negative/positive Corpus and Emotional Classification using the Internet Emotional Sign

인터넷 감정기호를 이용한 긍정/부정 말뭉치 구축 및 감정분류 자동화

  • 장경애 (서울과학기술대학교 IT정책전문대학원 산업정보시스템) ;
  • 박상현 (연세대학교 컴퓨터과학과) ;
  • 김우제 (서울과학기술대학교 글로벌융합산업공학과)
  • Received : 2014.10.13
  • Accepted : 2015.02.11
  • Published : 2015.04.15
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Abstract

Internet users purchase goods on the Internet and express their positive or negative emotions of the goods in product reviews. Analysis of the product reviews become critical data to both potential consumers and to the decision making of enterprises. Therefore, the importance of opinion mining techniques which derive opinions by analyzing meaningful data from large numbers of Internet reviews. Existing studies were mostly based on comments written in English, yet analysis in Korean has not actively been done. Unlike English, Korean has characteristics of complex adjectives and suffixes. Existing studies did not consider the characteristics of the Internet language. This study proposes an emotional classification method which increases the accuracy of emotional classification by analyzing the characteristics of the Internet language connoting feelings. We can classify positive and negative comments about products automatically using the Internet emoticon. Also we can check the validity of the proposed algorithm through the result of high precision, recall and coverage for the evaluation of this method.

네티즌은 인터넷을 통해서 상품을 구매하고 상품에 대한 감정을 긍정 혹은 부정으로 상품평에 표현한다. 상품평에 대한 분석은 잠재적 소비자뿐만 아니라 기업의 의사결정에 중요한 자료가 된다. 따라서 인터넷의 대량 리뷰에서 의미 있는 정보를 분석하여 의견을 도출하는 오피니언 마이닝 기술의 중요성이 증대되고 있다. 기존의 연구는 대부분이 영어를 기반으로 진행되었고 아직 한글에 대한 상품평 분석은 활발히 이루어 지지 않고 있다. 또한 한글은 영어와 달라 꾸미는 말과 어미가 복잡한 특성을 갖고 있다. 그리고 기존의 연구는 통계적 기법, 사전 기법, 기계학습 기법 등을 사용하여 연구되었으나 인터넷 언어의 특성을 감안하지는 못하였다. 본 연구에서는 감정이 포함된 인터넷 언어의 특성을 분석하여 감정분석의 정확률을 높이는 감정분류 방법을 제안한다. 이를 통해 데이터에 독립적인 인터넷 감정기호를 이용해서 자동으로 긍정 및 부정 상품평을 분류할 수 있었고 높은 정확률, 재현율, Coverage 결과를 통해서 제안 알고리즘의 유효성을 확인할 수 있었다.

Keywords

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