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NTIS 바로가기한국건설관리학회논문집 = Korean journal of construction engineering and management, v.20 no.3, 2019년, pp.113 - 121
김준수 (경북대학교 토목공학과) , 김병수
The death rate of industrial accidents per 10,000 people in Korea is two to three times higher than that of major countries. Falling accidents at the construction site happened to have caused the most deaths. Analysis of existing research and measures by national institutions showed that the industr...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
웹크롤러의 정보수집 방법은? | 웹크롤러는 웹서버를 순환하면서 각 홈페이지에 있는 수많은 정보를 수집하는 프로그램으로 사람이 홈페이지의 각 링크를 따라가서 정보를 얻는 반복적인 작업을 대신하여 프로그램이 자동으로 웹페이지의 내용을 분석한 후 URL을 하나씩 접속하여 정보를 수집한다. | |
주성분 분석이란 무엇인가? | 주성분 분석은 상관성이 있는 다변량 데이터를 내포된 정보의 손실을 최소화하여 저차원의 데이터로 축약하는 방법이다. 즉, 복잡한 데이터 프레임을 단순화하는 다변량 통계기법이다. | |
텍스트데이터가 고차원인 이유는? | 텍스트데이터의 가장 큰 특징은 고차원(High-dimensionality)이다. 이는 텍스트의 단락, 문장이 단어로 구성되어 있기 때문이다. 단어는 하나의 차원을 가진다. |
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