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- 저자 : 조영희(Cho, Young Hee) (검색결과 157 건)
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조영희,Cho, Young-Hee 한국지역사회간호학회 1999 지역사회간호학회지 Vol.10 No.2
The purpose of this study was to explore the degree of stress in caregivers caring for CVA patients and the level of daily living performance of CVA patients. The subjects for the study were caregivers of 112 CVA patients who enter a hospital or out-patient-department (OPD) at two Oriental medical hospital in Jeonbuk province. The survey instruments used in this study were Kang's ADL check list for daily living performance of patients and Choi's 4 sore scale for stress of caregivers. The survey was conducted from July 4th to August 30th in 1999. The survey results were analyzed with the Statistical Package for Social Science(SPSS) program and can be summarized as follows: 1. The level of daily living performance for the CVA patients was: 1) complete dependence (M=14.9, 13.1%), 2) complete independence (M=23.6, 20.9%), 3) incomplete independence (M=23.9, 21.0%), 4) incomplete dependence (M=26.6, 25%), 5) dependence and independence (M=23.0, 20.0%). The items for with there was a high level daily living performance were: 1) drinking (M=3.62), 2) eating(M=3.25). 3) position returning (M=3.18) : and the items for which there was a low level of daily living performance were: 1) ascending and descending stairs (M=2.08), 2) walking (M=2.47), 3) dressing and undressing trousers (M=2.55). 2. Degree of caregiver stress was: Mean=2.39 at 40 score. The items for which was a high level caregiver stress were: 1) medical fee (M=3.25), 2) being handicapped or recurrence (M=3.02) : and the items for which there was a low level of caregiver stress were: 1) discontinuity of patient's treatment (M = 1.98). 2) change of home atmosphere caused by patient's disease (M = 1.98), 3) desire of patient's knowing about disease (M= 1.99). 3. There was statistically significant difference in the degree of caregiver stress according to the following caregiver's demographic characteristics: education level (F=3.52, P=0.03). change of caregiver (F=5.41. P=0.02). 4. There was a statistically signifiant difference in the level of daily living performance according to the CVA patients demographic characteristics: patient's paralytic status (F=4.48, P=0.01), duration of disease (t=2.76, P=0.03). 5. There was significant difference in degree of caregiver stress according to the CVA patient's demographic characteristics: CVA status (F=4.75, P=0.01). 6. There was statistically significant difference in the degree of caregiver stress according to the level of daily living performance in CVA patients(r=-0.482, P<0.00).
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은닉 마코프 모델을 이용한 시계열 데이터의 의미기반 패턴 매칭
조영희(Young-Hee Cho),전진호(Jin-Ho Jeon),이계성(Gye-Sung Lee) 한국콘텐츠학회 2008 한국콘텐츠학회논문지 Vol.8 No.5
시계열 데이터에서 패턴을 찾고 검색하는 문제는 여러 분야에서 오랫동안 관심을 가지고 연구되어 왔다. 본 논문은 시간의 흐름에 따라 값의 변화를 나타내는 시계열 형태의 주식 데이터에 적용할 수 있는 새로운 패턴 매칭 방법을 제안한다. 우선, 의미를 기반으로 패턴을 정의하고 정의된 패턴에 일치하는 데이터들을 추출하여 학습모델을 작성한다. 그리고 새로운 질의 시퀀스가 어떤 종류의 패턴과 일치하는가는 각 학습 모델과의 유사도를 측정하여 결정하게 된다. 학습 모델은 시계열을 잘 설명하는 것으로 알려진 은닉 마코프 모델을 사용하여 작성하였다. 실험 결과 은닉 마코프 모델의 특성을 사용하여 생성된 각 학습 모델은 주어진 의미를 잘 나타내는 패턴을 생성하였으며, 새로운 시퀀스가 주어졌을 때 일치하는 패턴에 따라서 시퀀스가 가진 의미를 파악할 수 있었다. Pattern matching and pattern searching in time series data have been active issues in a number of disciplines. This paper suggests a novel pattern matching technology which can be used in the field of stock market analysis as well as in forecasting stock market trend. First, we define conceptual patterns, and extract data forming each pattern from given time series, and then generate learning model using Hidden Markov Model. The results show that the context-based pattern matching makes the matching more accountable and the method would be effectively used in real world applications. This is because the pattern for new data sequence carries not only the matching itself but also a given context in which the data implies.
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