본 논문은 빅데이터 기반 의사결정 지원 시스템인 '소셜위즈덤'에 포함된 이벤트 추출 및 이슈 이벤트 검색에 대해서 소개한다. 의사결정 지원 시스템은 경제적, 사회적 중요사항을 결정할 수 있도록 관련 정보와 인사이트(insight)를 제공하는 정보시스템을 이른다. 기존 시스템은 단지 특정 키워드 빈도나 공기하는 키워드들의 관계만을 제공하였다. 그러나 소셜위즈덤은 이벤트로 정의되는 주체(subject), 이벤트 속성(event property), 객체(object)의 트리플 집합인 템플릿을 추출하여 이를 기반으로 이벤트 정보를 제공한다. 본 논문에서는 이벤트 추출 성능 개선과 이슈 이벤트 순위화 모델에 대해서 소개한다. 이벤트 추출 성능 개선을 위해 온톨로지와 이벤트 통합 기술에 기반한 필터링 방법에 대해서 소개하고, 변동계수를 이용한 이슈 이벤트 순위화 모델을 소개한다. 또한, 변동계수가 이슈 이벤트 순위화 성능에 미치는 영향을 분석하였다.
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