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NTIS 바로가기한국건설관리학회논문집 = Korean journal of construction engineering and management, v.21 no.1, 2020년, pp.50 - 60
정상선 (서울대학교 건축학과) , 박문서 (서울대학교 건축학과) , 이현수 (서울대학교 건축학과) , 윤인석 (서울대학교 건축학과)
Estimates of project costs in the early stages of a construction project have a significant impact on the operator's decision-making in important matters, such as the site's decision or the construction period. However, it is difficult to carry out the initial stage with confidence because informati...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
유전자 알고리즘의 한계는? | 유전자 알고리즘은 선택, 교차, 변이 등을 연산자로 하여 최적화를 수행하게 된다. 하지만 정해진 규칙과 수식에 따라 연산할 뿐, 해당 연산자와 데이터의 특징 사이에는 관련성이 부족하다(Lee et al., 2005). | |
사례기반추론(Case-Based Reasoning, CBR)이란? | 대표적으로 공사비예측을 위해 과거의 사례를 기반으로 현재 문제(예측대상 프로젝트)의 해결책(예측 결과)을 제시 하는 방법인 사례기반추론(Case-Based Reasoning, CBR)을 활용한 연구가 수행되었다(Kolodner, 1993). 사례기반추론은 조회(retrieve), 재사용(reuse), 수정(revise), 저장(retain) 의 네 단계로 구성된다. | |
초기 공사비예측이 어려운 이유는? | 건설공사에서 프로젝트 초기 단계 공사비예측은 프로젝트 예산책정이나 공사 기간산정과 같은 중요한 업무에서 발주자의 의사결정에 큰 영향을 미친다. 초기 공사비예측은 도면과 시방서 등 설계도서가 완전히 갖춰지지 않은 상태에서 개략적인 정보만을 가지고 진행된다. 초기 단계 공사비 예측이 건설 사업의 성패를 결정하는 요인임 에도 불구하고 신뢰도 있게 공사비예측을 수행하는 것에 어려움이 있다 (An and Kang, 2005). |
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