• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.742-745
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• 2004

Most of options pricing theory including Black and Scholes continuous model and Cox, Ross, and Rubinstein(CRR)'s binomial lattice model were developed based on the notion that continually revised risk-free hedges involving options and stock should earn the risk-free interest rate. This notion is valid with the assumption that the investor's attitude toward risk is neutral. In reality, this assumption may be frequently violated. Therefore, Hodder, Mello, and Sick proposed the way to value real options using the risk-adjusted interest rate. However, they did not show how to derive the mathematical expression for it. In this paper, we will clearly present how to obtain the mathematical expression for the risk-adjusted interest rate for real options and demonstrate two numerical examples to show its applicability.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1467-1469
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• 2003

Image matching is fundamental process to identify conjugate points on the stereo images. However, standard methods or general solutions for matching problem have not been found yet, in spite of long history. Quality of the matching basically depends on uniqueness of the matching entity and robustness of the algorithm. In this study, conjugate points were extracted by implementing interest operator, then area based matching method was applied to the topographical characteristics of the gray value as the matching entities. The matching entities were utilized based on the concept of the intrinsic image.

• 정보교육학회논문지
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• 제21권2호
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• pp.199-208
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• 2017

이 연구에서는 우리나라의 문제점으로 지적되고 있는 낮은 수학교과 정의적 수준을 신장시킬 수 있는 방안 중 하나로 교육용 프로그래밍 언어의 활용 가능성을 확인해보았다. 중학교 수학교과의 삼각함수와 연계하여 포트리스 게임을 제작하는 과정을 교수 학습으로 설계하고 그 효과성 검증을 하였다. 연구 방법은 이질 사전 사후 실험설계를 하였다. 연구 과정은 4차시 동안은 실험 비교집단 공통적으로 삼각함수의 개념의 이해와 적용관련 수업을 하였다. 이 후 실험집단에는 이 연구에서 설계한 스크래치를 활용한 포트리스 게임 제작 활동을 하도록 하였으며, 비교집단에는 실생활 수학인 삼각비 개념 활용으로 건물의 높이 구하는 과정을 해결할 수 있도록 하였다. 적용 후 t검증 결과 수학교과 흥미와 가치인식 수준은 실험집단이 비교집단에 비해 유의미하게 향상 되었음을 확인하였으나, 두 변인의 사전점수를 공변인으로 공변량 분석을 한 결과 수학교과 가치인식 수준의 향상은 유의미하였으나, 홍미 수준은 사전점수의 영향이 있었음을 확인할 수 있었다.

• 한국학교수학회논문집
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• 제23권1호
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• pp.1-23
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• 2020

본 연구의 목적은 흥미에 관한 교육 연구들에 대한 고찰을 바탕으로 수학 흥미에 대한 이론적 논의의 기초를 세우고 수학교육에서 흥미를 어떻게 발달시킬 수 있는가에 대한 시사점을 도출하는 것이다. 흥미 이론에 관한 Dewey의 이론, 상황적 흥미와 개인적 흥미의 구분, 그리고 수학교육 관련 선행 연구들을 분석함으로써, '수학 흥미'를 개인이 수학적 대상에 대해 더 알아볼 가치가 있다고 느끼는 개인적인 경험의 총체로 정의하고, 흥미 이론에 근거하여 학교교육을 통해서 학생들의 수학 흥미가 발달되도록 해야 한다는 측면에서 수학 흥미를 상황적 흥미와 개인적 흥미로 구분할 필요가 있음을 확인하였다. 그리고 흥미를 구성하는 요소를 정서, 인지, 가치로 구분하고 이를 바탕으로 수학 흥미 함양의 원리로 활동의 원리, 긍정적 정체성의 원리, 그리고 점진적 확장의 원리를 제시하였다. 마지막으로 수학 흥미 함양을 위해서, 수학적 구조와 활동이 유기적으로 조직되어 학습자에게 수학의 가치와 활동의 목적을 제공할 수 있는 좋은 과제 개발을 제안하였다.

• 대한가정학회지
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• 제47권2호
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• pp.97-110
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• 2009

The purpose of this study was to exam the effects of sociocultural attitude toward appearance on perceptual attitudinal body images and clothing behaviors. The research method was survey and the subjects were 447 male and female adolescents in Daejeon. The questionnaire consisted of 4 measuring instruments; sociocultural attitude toward appearance, perceptual and attitudinal body images, clothing behaviors, and subject’s demographic attributions. The data were analyzed by Cronbach's $\alpah$, x$^2$ test, t-test, factor analysis, cluster analysis, using SPSS program. The results were as follows. Adolescents had relatively high level recognition and internalization of sociocultural value toward appearance, and they perceived very thin body type as ideal body and had high interest of their appearance and weight. Sociocultural attitude toward appearance had important effects on adolescents' perceptual and attitudinal body images and clothing behaviors. The adolescents who are receptive to sociocultural value toward appearance had the tendency to distort their body as fat, showed high interest of their appearance and weight, and also showed high clothing interest & psychological dependency, clothing ostentation, and clothing conformity, but low clothing comfort than those who are not receptive to sociocultural value toward appearance.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2007년도 춘계학술대회 논문집
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• pp.248-254
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• 2007

A center of economy, during last 50 years, has been transferred from production into consumption and a new consumption culture has been made by changing from reasonable trend into subjective and psychological trend. In the past, an interest of consumers was to possess things, however, in present, an interest of them is mental value and satisfaction to experience various cultures, to focus value and meaning human's life, and to realize desires. According to this trend, society's interest on interior design has continuously increased. Social phenomenon to make a serious consideration of design management and value is rushing with various brands on the basis of marketing strategy. In this kind of era, interior designers also should try to make interior design area brand through long, objective and systematic marketing plan. Therefore, this research shows differentiation strategy to make interior design brand on the basis of marketing strategy with theoretical background through literature study, and presents an example of spa and cosmetic beauty salon - current new consumption culture - on the basis of marketing strategy.

• 교육철학
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• 제41호
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• pp.473-496
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• 2010

The education will boil from daily life and as doing desirably, Nammyung emphasized. This fact all people importantly from education, to think. But recognizes this problem the center of life and study of oneself and the case which indicates writes. Nammyung led and recognized the importance of daily life from education. The life of the human being becomes more distant from daily life and when being absorbed in being external makes a valuable territory lose from life. When with the same interest of education becomes more distant from daily life of life, the education makes the meaning lose. When meaning the education is embodied from if human life, must have an educational interest in daily life. And works from the daily life which is repeated, meeting, association, dialogue and relationship, introspection etc. must become the interest territory of education, the education must devise is value from daily life the possibility of experiencing in order to be. Because the work which is ordinary, meeting from ordinary, with human relation and association dialogs, reflective etc. to compose a life. When the education excepts a daily life consequently, will not be able to give the value which is important in life. When saying conclusively, the education must escape from the fact that considers seriously a knowledge acquisition and a compensation. And the education must do to make a value the people experience rather from daily life. The resultant education will be able to accomplish the essential function of the education which loses, daily life will be valuable and there is a possibility which to make feel will do. With being like that, education could be reconciled with the people.

• Journal of Information Processing Systems
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• 제19권1호
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• pp.55-66
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• 2023

Community portraits can deeply explore the characteristics of community structures and describe the personalized knowledge needs of community users, which is of great practical significance for improving community recommendation services, as well as the accuracy of resource push. The current community portraits generally have the problems of weak perception of interest characteristics and low degree of integration of topic information. To resolve this problem, the reader community portrait method based on the thematic and timeliness characteristics of interest labels (UIT) is proposed. First, community opinion leaders are identified based on multi-feature calculations, and then the topic features of their texts are identified based on the LDA topic model. On this basis, a semantic mapping including "reader community-opinion leader-text content" was established. Second, the readers' interest similarity of the labels was dynamically updated, and two kinds of tag parameters were integrated, namely, the intensity of interest labels and the stability of interest labels. Finally, the similarity distance between the opinion leader and the topic of interest was calculated to obtain the dynamic interest set of the opinion leaders. Experimental analysis was conducted on real data from the Douban reading community. The experimental results show that the UIT has the highest average F value (0.551) compared to the state-of-the-art approaches, which indicates that the UIT has better performance in the smooth time dimension.

• The Journal of Asian Finance, Economics and Business
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• 제1권4호
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• pp.5-13
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• 2014

This study contributes to addressing the problem of an aging population by providing important information that determines feasible monthly payments for the clients of Chinese reverse mortgage products and by promoting the implementation of reverse mortgages in China. The variables used in this study include mean values obtained from time series data, of the rate of increase of housing prices, and the probability value, interest rate, and mortality rate obtained through the geometric Brownian motion (GBM). For mortality rates, China Life Insurance female mortality rates (2000-2003) were used. This study aims to apply the main variables that affect reverse mortgage products in a monthly payment model based on Chinese financial market conditions, and determine loan values. In this study, Shanghai's reverse mortgage monthly payments, by age levels, were calculated through the loan-to-value (LTV) and payment (PMT) methods to evaluate the value of the reverse mortgages. Based on the optimal combination of the three factors of payment amount, loan interest rates, and the level of acceptance of prices, efforts must be made to extract the best value for the elderly. Only in this way can the interests of both lenders and borrowers be protected, by increasing the market share and economies of scale of the reverse mortgage industry and effectively improving the living standards of the elderly.

• 경영과정보연구
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• 제25권
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• pp.339-370
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• 2008

As the Internet environment develops, Internet has already been being established as important tool of business marketing and branding. In particular, a brand community where customers interact with other customers who have the same interest in brand provides a variety of benefits to customers as well as companies. The brand community makes it possible for company to build, and retain relationships with customers, and capture new market opportunities. Therefore, this study examines the relationship among service quality of brand community, customer value, customer satisfaction, customer trust, and brand community loyalty in online brand communities. The results of empirical analysis can be summarized by the following: First, service quality of brand community had a significant direct effect on customer value. Second, service quality of brand community had a significant direct effect on customer satisfaction. It had also a positive, significant indirect effect on customer satisfaction through customer value and customer trust. Third, service quality of brand community had a significant indirect effect on brand community loyalty through customer satisfaction, customer value, and customer trust. Therefore, These finding will spawn both academic and practitioner interest in brand community and serve as a foundation for further research in this important area.