http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이용환(Young Hwan Lee) (검색결과 150 건)
- 무료
- 기관 내 무료
- 유료
-
이용환(Lee, Yong-hwan),유영중(Yoo, Young-joong) 글로벌경영학회 2012 글로벌경영학회지 Vol.9 No.2
본 연구는 주가변동성에 영향을 미치는 재무적 요인은 무엇인가를 규명하고, 이러한 재무적 요인이 주가변동성에 영향을 주는 정도가 기업특성에 따라 다르게 나타나고 있는지를 분석하고자 하는 것이다. 분석을 위하여 표본기업을 매출액증가율과 순이익증가율에 따라 4개의 집단으로 분류하였으며, 집단간 변수의 차이를 검증하기 위하여 분산분석을 실시한 바, 자기자본순이익률과 자기자본영업이익률을 제외한 모든 변수가 집단 간 유의적인 차이가 있는 것으로 나타났다. 4개의 집단에 대하여 주가변동률과 재무지표 사이의 회귀분석을 실시한 결과 집단 마다 유의성을 가지는 변수와 그 변수가 가지는 비표준화계수의 부호 및 크기에 차이가 있음을 알 수 있었다. 따라서 기업의 특성에 따라 재무비율이 주가변동율에 미치는 영향은 차이가 있을 것이라는 가설은 지지되고 있는 것으로 해석된다. The motivation of this study is identify financial factors influenced to volatility and analysis the effect of financial factors to volatility that is presumed different by business trait. For this study group sample business into four classes by increase ratio of sales and increase ratio of net profit. As a result of analysis of variance all the variables except ratio of net profit to equity capital and ratio of sales profit to equity capital shows resonable differences between four groups. Then it is expected that financial factors shows resonable relations to volatility at each four groups differently. As a result by regression it shows different resonable variables between four groups. And the size of unstandardized coefficients and symbols of unstandardized coefficients are different between four groups. So it is accepted that the effect of financial factors to volatility are different between four groups.
-
이용환(Lee, Yong-hwan),유영중(Yoo, Young-joong) 글로벌경영학회 2012 글로벌경영학회 학술대회 발표논문집 Vol.2012 No.1
본 연구는 주가변동성에 영향을 미치는 재무적 요인은 무엇인가를 규명하고, 이러한 재무적 요인이 주가변동성에 영향을 주는 정도가 기업특성에 따라 다르게 나타나고 있는지를 분석하고자 하는 것이다. 분석을 위하여 표본기업을 매출액증가율과 순이익증가율에 따라 4개의 집단으로 분류하였으며, 집단 간 변수의 차이를 검증하기 위하여 분산분석을 실시한 바, 자기자본순이익률과 자기자본영업이익 률을 제외한 모든 변수가 집단 간 유의적인 차이가 있는 것으로 나타났다. 4개의 집단에 대하여 주가변동률과 재무지표 사이의 회귀분석을 실시한 결과 집단 마다 유의성을 가지는 변수와 그 변수가 가지는 비표준화계수의 부호 및 크기에 차이가 있음을 알 수 있었다. 따라서 기업의 특성에 따라 재무비율이 주가변동율에 미치는 영향은 차이가 있을 것이라는 가설은 지지되고 있는 것으로 해석된다. The motivation of this study is identify financial factors influenced to volatility and analysis the effect of financial factors to volatility that is presumed different by business trait. For this study group sample business into four classes by increase ratio of sales and increase ratio of net profit. As a result of analysis of variance all the variables except ratio of net profit to equity capital and ratio of sales profit to equity capital shows resonable differences between four groups. Then it is expected that financial factors shows resonable relations to volatility at each four groups differently. As a result by regression it shows different resonable variables between four groups. And the size of unstandardized coefficients and symbols of unstandardized coefficients are different between four groups. So it is a
-
이용환,김영섭,Lee, Yong-Hwan,Kim, Young-Seop 한국반도체디스플레이기술학회 2008 반도체디스플레이기술학회지 Vol.7 No.4
Image retrieval is one of the most exciting and rapidly growing research issues in the field of multimedia technology. This paper proposes a new method that performs search the relevant images by using query-by-example. The proposed method for search and retrieval of images utilizes the location information where the image had been taken. The system associates the photo images with their corresponding GPS coordinates that are used as metadata for searching. Experimental results show that the proposed method demonstrates better performance improving up to 59% of average recall and 49% of average precision. Moreover, we learned from the experimental results geo-location information embedded within the image header is more effective and positive on the search and storage.
-
영상의 위치 정보를 위한 임베디드 지오코딩 시스템 구현
이용환,김영섭,Lee, Yong-Hwan,Kim, Young-Seop 한국반도체디스플레이기술학회 2008 반도체디스플레이기술학회지 Vol.7 No.3
Geo-coding refers to the process of associating data with location information, and the system deals with geographic identifiers expressed as latitude and longitude or street addresses. Although many services have been launched, there still remains a problem for users to create geo-coded photo with manually labeling GPS(Global Positioning System) coordinate or synchronizing with separate devices. In this paper, we design and implement a geo-coding system which utilizes the time and location information embedded in digital photographs in order to automatically categorize a personal photo collection. An included GPS receiver labels a photograph with its corresponding GPS coordinates, and the position of the camera is automatically recorded into the photo image header at the moment of capture. The place and time where the photo was taken allows us to provide context metadata on the management and retrieval of information.
-
이용환,이영수,Lee, Yong-Hwan,Lee, Young-Soo 한국교육녹색환경연구원 2010 교육·녹색환경연구 Vol.9 No.3
The Ministry of educational science and technology is about to conduct its 7th &8th curriculum. However, there are some problems in achieving its goals under the current class model system in both educational and architectural. This study finds the characteristics of the arrangements and architectural planning in the departmental system - designed high schools. As a result, the arrangement was tend to be 'overall type' or 'central type' depending on the teaching-learning efficiency. Liberal arts and science&technology groups were placed close, and foreign languages and general cultural studies were arranged close as well. Importantly, there were supporting facilities such as a gymnasium, a cafeteria, a library, a computer lab, and an all-purpose-room, and this arrangement provided convenience. It is for the better learning effect and the high efficiency. It is worthy noticing that the placement and formation of individual or study space is regarded importantly. In flow planning, it seemed that it was designed to reduce the users' movement to a minimum. However, there are still some problems compared to Japan or the States, who already has an established departmental system. I think that the government should enforce its necessity of planning to schools, relevant divisions, or architects to bring it up. Furthermore, it is urgently needed a practical and future-oriented study that can forecast any changes in architectural spaces within the ever-changing teaching and learning environment in the information-oriented society.
-
모바일 디스플레이에서 TS 알고리즘을 이용한 실시간 얼굴영역 검출
이용환,김영섭,이상범,강정원,박진양,Lee, Yong-Hwan,Kim, Young-Seop,Rhee, Sang-Bum,Kang, Jung-Won,Park, Jin-Yang 한국반도체디스플레이기술학회 2005 반도체디스플레이기술학회지 Vol.4 No.1
This study presents a new algorithm to detect the facial feature in a color image entered from the mobile device with complex backgrounds and undefined distance between camera's location and the face. Since skin color model with Hough transformation spent approximately 90$\%$ of running time to extract the fitting ellipse for detection of the facial feature, we have changed the approach to the simple geometric vector operation, called a TS(Triangle-Square) transformation. As the experimental results, this gives benefit of reduced run time. We have similar ratio of face detection to other methods with fast speed enough to be used on real-time identification system in mobile environments.
-
GIS에서 사용자 정의 함수와 데이터형을 지원하는 질의 처리기의 구현
이용환(Lee Yong-Hwan),조영섭(Cho Young-Seob),김홍연(Kim Hong-Yeon),배해영(Bae Hae-Young) 한국정보과학회 1997 한국정보과학회 학술발표논문집 Vol.24 No.1B
다양한 응용분야를 가지는 지리정보시스템(Geographic Information System, GIS)의 질의어는 사용자의 요구에 따라 새로운 연산의 추가 및 기존의 연산을 확장할 수 있는 기능이 필요하다. 특히, 공간 데이터를 처리하기 위해서는 기존의 공간 연산자를 이용하여 새로운 공간연산자의 정의가 가능하여야 하고, 새로운 공간연산자의 추가도 가능하여야 한다. 본 논문에서는 사용자 정의 함수와 데이터형을 처리할 수 있도록 질의어를 확장하고, 확장된 질의어를 처리하는 질의 처리기를 설계, 구현한다. 따라서, 사용자가 기능의 추가 및 확장을 쉽게 하고 처리의 효율을 높이기 위해서 질의어를 확장하여 사용자 정의 함수나 데이터형의 처리를 지원한다.
-
-
이용환(Yong Hwan Lee),양승규(Seung Kyu Yang),이영세(Young Se Lee) 한국노인복지학회 2001 노인복지연구 Vol.13 No.-
This study has been performed to analyze general perception of college students on helping behaviors of their grandparents. In this study, it was observed that students perceive their grandparents` helping behaviors negatively in general. They feel that their grandparents are not helpful for giving advises on critical decisions, guiding and encouraging daily lives, and offering financial and active assistances when urgently needed. There are also gender differences on perception particularly, male students perceive that their grandparents are not helpful for eating outside together, caring when sick, and giving critical assistances on urgent situations, while females perceive somewhat positive on the same issues. Overall in this study, it is proposed that education for evaluating the image be intensified more onto male students living without their grandparents in the same household.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
