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산촌개발사업 조성이후의 마을시설현황에 따른 주민만족도 평가에 관한 연구
이상홍,신용호,서희숙,Lee Sang-Hong,Shin Yong-Ho,Seo Hee-Sook 한국주거학회 2006 한국주거학회 논문집 Vol.17 No.3
The purpose of this study is to grasp effectiveness of Mountain Village Package Development Work. Mountain Village Package Development Work was started for the welfare and economic activation plan of residents of village from 1995. We want to grasp a practical economic and welfare of residents of village through the village that is enforced Mountain Village Package Development Work after two-three years. The process of this study is as follows. First, we select the village that Mountain Village Package Development Work finished. Second, we grasp the status of Mountain Village Package Development Work through a field study on destination village. Third, we investigate the resident satisfaction.
이상홍,Lee, Sang-Hong 한국과학기술정보연구원 2002 지식정보인프라 Vol.9 No.-
세계가 하나의 시장으로 통합되면서 국제표준을 의무적으로 수용할 것을 요구하는 등 어느때 보다는 기술표준의 역할 및 중요성이 부가되고 있는 현실이다. 따라서 세계 각국 및 기업들은 이에 발맞추어 통신시장을 선점하는 전략적 도구로서 표준화 활동을 보다 강화하기 위해 국제표준화기구 혹은 포럼 등에 보다 전략적으로 표준화활동을 하고 있는 실정이다.
KOSPI 예측을 위한 NEWFM 기반의 특징입력 및 퍼지규칙 추출
이상홍 ( Sang-hong Lee ),임준식 ( Joon S. Lim ) 한국인터넷정보학회 2008 인터넷정보학회논문지 Vol.9 No.1
본 논문은 가중 퍼지소속함수 기반 신경망(Neural Network with Weighted Fuzzy Membership Functions, NEWFM)을 사용하여 생성된 퍼지규칙과 비중복면적 분산 측정법에 의해 추출된 최소의 특징입력을 이용하여, 1일 후의 KOSPI 예측을 하는 방안을 제안하고 있다. NEWFM은 KOSPI의 최근 32일 동안의 CPPn,m(Current Price Position of day n for n-1 to n-m days)을 이용하여 1일 후의 KOSPI 상승과 하락을 예측한다. 특징입력으로써 CPPn,m과 최근 32일간의 CPPn,m을 웨이블릿 변환한 38개의 계수들 중 비중복면적 분산 측정법을 적용하여 추출된 5개의 계수가 사용되었다. 제안된 방법으로 1991년부터 1998년까지의 실험군을 사용한 결과 평균 67.62%의 예측율을 나타내었다. This paper presents a methodology to forecast KOSPI index by extracting fuzzy rules based on the neural network with weighted fuzzy membership functions (NEWFM) and the minimized number of input features using the distributed non-overlap area measurement method. NEWFM classifies upward and downward cases of KOSPI using the recent 32 days of CPPn,m (Current Price Position of day n for n-1 to n-m days) of KOSPI. The five most important input features among CPPn,m and 38 wavelet transformed coefficients produced by the recent 32 days of CPPn,m are selected by the non-overlap area distribution measurement method. For the data sets, from 1991 to 1998, the proposed method shows that the average of forecast rate is 67.62%.
이상홍(Sang-Hong Lee),임준식(Joon S. Lim) 한국지능시스템학회 2009 한국지능시스템학회논문지 Vol.19 No.2
본 논문은 가중 퍼지소속함수 기반 신경망(Neural Network with Weighted Fuzzy Membership Functions, NEWFM)기반의 자동 특징 추출기법을 사용하여 1일 후의 주식 예측을 하는 방안을 제안하고 있다. 비중복면적 분산측정법에 의해 중요도가 가장 낮은 특징입력을 자동적으로 하나씩 제거하면서 최소의 특징입력을 선택하였다. 특징입력으로써 CPPn,m (Current Price Position of the day n)과 최근 32일간의 CPPn,m을 웨이블릿 변환한 38개의 계수들 중 비중복면적 분산측정법에 의해서 자동적으로 추출된 2개의 계수가 사용되었다. 제안된 방법으로 1989년부터 1998년까지의 실험군을 사용한 결과로써 60.93%의 예측율을 나타내었다. This paper presents a methodology to 1-day-forecast stock index using the automatic feature extraction method based on the neural network with weighted fuzzy membership functions (NEWFM). The distributed non-overlap area measurement method selects the minimized number of input features by automatically removing the worst input features one by one. CPPn,m (Current Price Position of the day n: percentage of the difference between the price of the day n and the moving average from the day n-1 to the day n-m) and the 2 wavelet transformed coefficients from the recent 32 days of CPPn,m are selected as minimized features using bounded sum of weighted fuzzy membership functions (BSWFMs). For the data sets, from 1989 to 1998, the proposed method shows that the forecast rate is 60.93%.
인공 고관절 전치환술에서 Harris-Galant형 반구 포말형 비구컵의 방사선학적 분석
이상홍 ( Sang Hong Lee ),위윤철 ( Yuen Chul Wee ),표영배 ( Young Bae Pyo ),하상호 ( Sang Ho Ha ),김영철 ( Young Chul Kim ) 대한고관절학회 1996 Hip and Pelvis Vol.8 No.2
The results of fifty-five consecutive primary total hip arthroplasties in which a Harris-Galante porous coated acetabular component had been used were reviewed after a minimum of five years. Areas of gaps between the porous mesh at the periphery of the acetabular component and the bone were seen on the immediate postoperative radiographs of twenty-eight hips(50.9%). At the second year follow up, a radiolucent line was found in twenty-six hips(47.3%). These radiolucent lines were never wider than one milimeter and were most frequently located in zone I[. At the time of last follow-up evaluation, a progressive radiolucent line was identified around eight hips and a discontinous radiolucent line was present in all three zones around eleven. The continous radiolucent line was identified in two hips. A progressive radiolucent line developed around only two of twenty-seven hips that were not associated with an initial peripheral gap, but a progressive radiolucent line developed around six of the twenty-eight hips that were associated with such a gap. An initial peripheral gap will subsequently show a progressive radiolucent line. None of the acetabular components were loose, however, six acetabular component were revised due to dissociation of polyethylene liner, postoperative femoral fractures and revision of femoral stem in two hips each. In six cases of the author's experience with revision, bone ingrowth around the porous surface of acetabular components was well developed. Our experience with Harris-Galante porous coated acetabular components suggests that the tech- nique used for implantation may be important not only for initial fixation and ingrowth of bone, but also, more importantly, for the design of the liner-metal back locking mechanisms.