• Korean Journal of Logic
• /
• v.9 no.1
• /
• pp.63-95
• /
• 2006

노직은 뉴컴의 문제를 뉴컴이 묘사한 상황에서 합리적인 행위를 선택함에 있어 지배의 원리와 기대 효용 극대화의 원리의 적용의 결과가 충돌한다는 것으로 설명하고 있다. 슐레징거와 이병욱은 지배의 원리에 의한 선택이 합당함을 논증하고 있다. 그들의 논증은 원래의 뉴컴 상황과 변형된 뉴컴 상황의 유비에 근거하고 있다. 이 글에서는 그러한 유비가 성립하지 않거나 성립할 경우 뉴컴 문제를 해결하는 데 흡족하지 않음을 보이려 하고 있다. 그리고 뉴컴 상황에서 지배의 원리를 사용해야 하는 독자적인 이유를 제시하고 있다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2010.06b
• /
• pp.53-58
• /
• 2010

코드 난독화 기법 중의 하나인 인라인(Inline)은 코드의 복사를 통하여 함수의 호출 구조를 파괴하여서 코드의 복원과 이해를 어렵게 만든다. 하지만 적절한 전략 없이 인라인 기법을 적용하게 되면, 프로그램 성능이 저하되며 난독화의 결과도 기대 이하일 가능성이 존재한다. 따라서 지나친 성능의 저하를 막으면서 결과적으로 코드의 복원과 이해를 최대한 어렵게 하기 위한 인라인 수행 전략이 필요하다. 이를 위하여 본 논문에서는 정적 함수 호출 그래프를 기반으로 인라인의 적용 여부를 유전 알고리즘을 사용하여 결정하도록 한다. 그리고 인라인 전후의 효용을 보여주기 위하여 정보이론 및 제어 흐름의 복잡도에 기반하여 전체 프로그램의 복잡도를 정의하였다. 마지막으로 해당 기법의 효용을 실험을 통해 보였다.

• Journal of the Korea Society of Computer and Information
• /
• v.25 no.3
• /
• pp.129-143
• /
• 2020

The purpose of this study is to explain users' wearable healthcare device adoption using performance expectancy, effort expectancy, facilitating condition, hedonic motivation and price value of UTAUT2, and to identify the causal relationship between intention to use wearable healthcare device and innovativeness. The research model proposed in this study is based on UTAUT2(Extended Unified Theory of Acceptance and Use of Technology). In specific, performance expectancy, effort expectancy, facilitating condition, hedonic motivation and price value of UTAUT2 and innovativeness are adopted in our research model. To validate the research model, we carry out the analysis of the survey data using Smart PLS 3.0 to test the hypotheses. According to the empirical analysis results, this study confirms that Innovativeness have significant effects on the performance expectancy, effort expectancy, Facilitating condition, Hedonic motivation, and price Value of wearable healthcare devices. It also finds that the performance expectancy, effort expectancy, Facilitating condition, hedonic motivation, and price value affects the intention to use wearable healthcare devices.

• KDI Journal of Economic Policy
• /
• v.35 no.1
• /
• pp.1-32
• /
• 2013

Economic sanctions and inducements are types of 'policy instruments' based on 'economic tools' to influence other international actors. Ongoing debates on sanctions and inducements have exposed drawbacks for relying on individual case studies. There are some studies in the literature that attempt theoretical analysis of sanctions and inducements, but they are mostly based on rational choice theory. In reality, however, there exist so many cases that cannot be explained by rational choice theory. These are called anomalies or exceptions. The literature introduces specific variables to interpret these anomalies and thus sacrifice the universality of the theory. From this point of view, prospect theory would present an effective tool to analyze economic sanctions and inducements. It is a behavioral economic theory that tries to model a decisions making process in reality. The theory says that people make decisions based on subjective value of losses and gains from an individual reference point, and that people evaluate these losses and gains using heuristics. Thus prospect theory could offer a different frame which has greater explanatory range without adding new variables. As a result of this study, target's losses of 'back down' towards economic sanctions loom larger when the reference point level increases, therefore, the effectiveness of sanctions decreases. However, target's losses of 'stand firm' towards economic inducements loom larger under the same condition of reference point, therefore, the effectiveness of inducements increases. The findings of the paper suggest meaningful implications to the economic policy towards North Korea.

• The Journal of the Korea Contents Association
• /
• v.10 no.11
• /
• pp.80-91
• /
• 2010

Typography is very important for the delivery of information and for its aesthetic functions, typography focuses on facilitating faster and easier legibility for audience in modern society. But analysis for pre-studies for typography are limited in trend in the center of Kinetic Typography, dissolution of typography and territory extend as well as its typography analyzed by plastic arts aspects to acutely requiring expressing strategy and study based on typographic theory in working-level are insufficient. This study is to apply systematic theory to typography in order to suggest guidelines for increasing utility of typography for graphic design. It presents case studies, organized by theme, focusing on graphic design artworks featured in world-renowned specialty publications like the Creative 38 Annual Awards during 2008 and 2009. For practical help to designers engaged in various projects, it also suggests practical tactics for development that may enhance creative strategies in the creation of designs adopting typography. This study offers systematic usage methods of typography to the practical graphic designers and expected to contribute to the development of graphic designs that stimulate the visual senses of their audiences.

• 한국경영정보학회:학술대회논문집
• /
• 2008.06a
• /
• pp.454-471
• /
• 2008

This study suggests the dynamic pricing model which reveals the organic relationship between ASP (Application Service Provider) price and the related factors, using system dynamics methodology. Basically, we applied the law of supply and demand for analyzing price changes. Then, we deducted ASP price, focusing on fixed cost and variable cost. We also researched the customer's buying behavior according to version differentiation policy. In the version policy, we set up the proposition about customer's satisfaction and willingness-to-pay, using option system. As a result, this research designed the simulation model which analyzes the changes of the sales according to version differentiations and customer's willingness-to-pay. Through this research, we can find effective version differentiation strategies. This paper also found that the larger the number of package, the greater the demand and customer's willingness-to-pay. The increase of the number of package causes the increase of the sales. The increase of the sale is not exactly relative to the number of package. Drawing S-curve, the sales was increased. This dynamic pricing model suggests the ground that the ASP price changes based on the existing version differentiation theory and the demand of customers can affect the changes of the sales. We expect that this model suggests a clear standard of ASP pricing by combining real cases.

• Journal of Digital Convergence
• /
• v.19 no.1
• /
• pp.389-399
• /
• 2021

The research background of this paper is because the u-convergence information system applying flow theory lacks the measurement of tourist satisfaction. The purpose and research method of this study are as follows. The first is the suggestion of flow relation information display format algorithm. Second, by combining this algorithm and flow theory, a pattern algorithm was created according to the content information quality and the personality type of tourists. The expected effect of this study is to derive the success factors of the u-convergence information system by generating a pattern algorithm according to the flow relationship information display format and the tourist's personality type. The limitations of this paper are limited to one area, and objectivity is poor due to the lack of data and small area. In the future, it is necessary to evaluate the effectiveness through analysis after applying the method presented to other tourist destinations. Future tasks will need to be supplemented with data from expert groups and objectivity in various regions.

• Management & Information Systems Review
• /
• v.32 no.2
• /
• pp.165-191
• /
• 2013

A long debate has been made about whether job satisfaction facilitates or impedes union participation. This study analyzed the moderating effect of union instrumentality in the relationship between job satisfaction and union participation. The data collected from 826 employees of 22 workplaces were empirically evaluated. The result of the research revealed that both positive effect and negative effect were observed in the relationship between job satisfaction and union participation. The positive effect was noticed in the direct influence of job satisfaction on the union participation. However, given the interaction between job satisfaction and union instrumentality, the job satisfaction showed the negative effect on the union participation. Based on this result, we can conclude that the direct influence of job satisfaction on the union participation supports dissonance theory about the union participation and the interaction effect between job satisfaction and union instrumentality confirms the utility theory. The present study indicates that the effect of union participation is more reinforced when job satisfaction and union instrumentality are closely connected than when job satisfaction independently affects union participation. Thus, the result implicates that for the revitalization of the labor union, the organization needs to offer a variety of services to satisfy the expectation of whole union members in practical terms instead of concentrating on the labor movement for the political struggle. This point says a lot for a new direction of labor movement.

• Information Systems Review
• /
• v.21 no.3
• /
• pp.111-129
• /
• 2019

Recently, artificial intelligence (AI)-enabled products and services such as smartphones, smart speakers, chatbots are being released due to advances in AI technology. Thus researchers making effort to reveal that consumers' intention to adopt AI-enabled products. Yet, little is known about the intended adoption of AI-enabled products. Because most of studies has been not consideredthe perceived utility value of consumers for each attribute by classified based on the characteristics of AI-enabled products. Therefore, the purpose of this study is to investigate the difference in importance between attributes that affect the intention to adopt of AI-enabled products. For this, first, identified and classified the attributes of AI-enabled products based on IS Success Model of DeLone and McLean. Second, measured the utility value of each attribute on the adoption of AI-enabled products through conjoint analysis. And we employed construal level theory to see whether there are differences in the relative importance of AI-enabled products attributes depending on the temporal distance. Third, we segmented the market based on the utility value of each respondent through cluster analysis and tried to understand the characteristics and needs of consumers in each segment market. We expect to provide theoretical implications for conceptually structured attributes and factors of AI-enabled products and practical implications for how development efforts of AI-enabled products are needed to reach consumers need for each segment.

• The Journal of the Institute of Internet, Broadcasting and Communication
• /
• v.15 no.5
• /
• pp.69-74
• /
• 2015

In this paper the patterns of information system is reduced so that control rules can guarantee fast response of queries in database. Generally an information system includes many kinds of necessary and unnecessary attribute. In particular, inconsistent information system is less likely to acquire the accuracy of response. Hence we are interested in the simple and understandable rules that can represent useful patterns by means of rough entropy and Bayesian posterior probability. We propose an algorithm which can reduce control rules to a minimum without inadequate patterns such that the implication between condition attributes and decision attributes is measured through the framework of rough entropy. Subsequently the validation of the proposed algorithm is showed through test information system of new employees appointment.