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정진호(Jung, Jin-Ho),김종협(Kim, Jonghyeob),추재호(Choo, Jae-Ho),이승훈(Lee, Seung-Hoon),현창택(Hyun, Chang-Taek) 대한건축학회 2017 대한건축학회논문집 Vol.33 No.3
As multi-family housing has been chosen as the most popular types of housing in Korea, the maintenance of these facilities has become a key issue for the lives of the residents. The problem concerning the estimation of common maintenances cost is a sensitive issue and one that is currently receiving a lot of interest from the residents. Factors affecting this issue are complex and diverse. Thus, it is difficult to verify if the results of given estimates are adequate or whether or not the costs are high in comparison to other similar facilities. So, based on the historical data of multi-family housing, this study suggests an estimation model for arriving at common maintenance costs by utilizing the random forest method - a technique used in data mining. The multi-family housing data used in the configuration of the model was collected from certain regions in Seoul and, based on this, the random forest method was used to analyze the factors that influence common maintenance costs in order to develop an estimation model. This model is notable as it differed from traditional statistical methods by utilizing data mining -the random forest method- to build an estimation model for common maintenance costs. As a result of the case verification, the random forest based estimation model in this study is considered useful, and it is expected that more precise estimates will be gradually achieved as the data accumulates due to the nature of data mining and machine learning techniques.
秋再鎬 慶南大學校 産業經營硏究所 1987 産業經營 Vol.10 No.-
1. 序 論 2. 敎育財政의 需要 1) 敎育財政의 總量規模 2) 地方敎育財政의 實態 3. 敎育財政의 供給 1) 中央政府의 敎育豫算規模 2) 敎育稅와 財源補完 4. 地方敎育財政의 當面問題 5. 各界의 見解 6. 地方敎育財政의 確保方案
10주간 수중 운동이 60대 여성의 기능적 동작과 기능적 체력에 미치는 영향
최종환, 추재호 忠北大學校 平生體育硏究所 2015 平生體育硏究所 論文集 Vol.27 No.-
The purpose of this study is to the influence of aquatic exercise on functional movement and functional fitness of women in their 60's. 16 women in their 60's were divided into 2 groups and then were allowed to take 10-week aquatic exercise(n=8, 63.50±3.20) and aerobic dance exercise(n=8, 63.87±2.58). All subjects were carried out the functional movement screen and the functional fitness screen over the pre-post exercise for 10 weeks. Data processing was made with paired t-test. The results of the study were as follows. First, regarding lower body strength among the changes in muscle strength, both aquatic exercise group and aerobic dance exercise group showed significant improvements. Second, as for upper body strength among the changes in muscle strength, the only aquatic exercise group showed significant improvements. Third, in cardiovascular endurance, both aquatic exercise group and aerobic dance exercise group showed significant improvements. Finally, in respect of deep squat, active straight leg raise, rotary stability, total score of functional movement screen, aquatic exercise group showed significant improvements. Therefore, this study suggests that the aquatic exercise of considering resistance and environment in exercise is more effective for the improvement in functional movement and functional fitness of women in their 60's.