• KIPS Transactions on Software and Data Engineering
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• v.7 no.12
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• pp.497-504
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• 2018

This paper studies about the Oriental Medical Expert System, based on Open Source Drools for rule engine processing, which contains scalability, availability, and modifiability. The system is developed with the Spring MVC framework and Ajax for stable services of the Web-based Medical Expert System. The diagnosis and treatment process of this Medical Expert system provides a service that provides the general users to accesses the web with a series of questionnaires. In order to compensate for the asynchronous communication between clients and services, and also for the complicated JDBC weaknesses, we applied the data handling in JSON to reduce the servers' loads, and also the Mybatis framework to improve the performance of the RDBMS, respectively. In addition, as the number of users increases to cope with the maximum available services of the web-based system, the load balancing structure using Nginx has been developed to solve the server traffic problems and the service availability has been increased. The experimental results show the stable services by approving the scalability test.

• Journal of Korean Society of Disaster and Security
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• v.13 no.2
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• pp.1-9
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• 2020

Vietnamese cities have a high risk of flooding under climate change due to their geographical characteristics. In this situation, the urban area is expanding with rapid growth of urban population. However, the risk of flooding is increasing due to the increase in impermeable areas and insufficient infrastructure. This study analyzed the urban expansion trend at the national level in Vietnam for the past 10 years (2007-2017) by using the Urban Expansion Intensity Index. Also, this study selected Hue City as a region with a large impact of climate change and a rapid expansion and found the possibility of flooding in the urban expansion area. The result showed that cities have been expanded around major cities in the Red River Delta, Mekong Delta, and coastal areas. In the case of Hue City, the area with fast expansion rate has a higher expected flood area. It implies that the risk of flood disasters may increase if the urabn expansion is carried out without disaster prevention measures. It is expected that Korean urban disaster prevention policies such as urban climate change disaster vulnerability analysis system will be helpful in establishing urban plans considering climate change in the fast growing regions such as Vietnam.

• The Journal of the Korea Contents Association
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• v.21 no.1
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• pp.292-310
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• 2021

The influence of COVID 19 has a direct impact on the education field. In the situation where non-face-to-face classes are inevitably required, interest in the learning satisfaction and intention to use real-time video conferencing is increasing. This study analyzed the effects of learner-teacher interaction, social presence, availability, self-efficacy and academic engagement as video conferencing characteristics and learner's characteristics on perceived usefulness, perceived ease of use, learning satisfaction and intention to use video conferencing. The results of this study showed that learner-teacher interaction, availability, and self-efficacy had a positive effect on perceived ease of use, and all variables except availability had a positive effect on perceived usefulness. Also, perceived usefulness and ease of use were factors that increased learning satisfaction and video conferencing use intention, and learning satisfaction was identified as variables that increased video conferencing use intention. This study has significance in that it provided various theoretical and practical implications for real-time video conferencing which will be used in many educational fields in the future through empirical analysis.

• 한국노년학
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• v.40 no.4
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• pp.707-727
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• 2020

This study aims to empirically analyze the role that perception of the probability of lonely death among the elderly people living alone plays in the relationship between perceived social support and preference for institutional care based on Andersen's expanded Behavioral Model (2002). The subjects (n=676) of this study were the elderly people living alone, extracted from the "2018 Seoul Aging Survey." With "perceived social support" as an independent variable, "preference for institutional care" as a dependent variable, and "perception of the probability of lonely death" as a mediator variable, we conducted a Binary Logistic Regression to follow the three steps of analyzing mediation effect, as suggested by Baron and Kenny (1986). The results showed that perceived social support has a negative effect on the preference for institutional care and perception of the probability of lonely death among the elderly people living alone; at the same time, perception of the probability of lonely death was found to have a positive effect on their preference for institutional care. Lastly, perception of the probability of lonely death was found to partially mediate the effect of perceived social support among the elderly people living alone in terms of their preference for institutional care. Based on these findings, the practical implications of this study can be summarized as follows. First, various programs and support should be provided to the elderly people living alone in order to enhance the level of perceived social support, a factor that has been confirmed to increase preference for institutional care among the elderly people living alone. Second, as the perception of the probability of lonely death was confirmed to be a psychosocial factor of the preference for institutional care, we need to promote education and support for older people living alone to prepare them for lonely death. These efforts are expected to form a foundations for implementing a community-based integrated care system, "Aging in Place," which is the policy direction required for older people care.

• Korean Journal of Remote Sensing
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• v.28 no.1
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• pp.29-38
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• 2012

Nowadays, most remote sensing image processing systems are on client-based ones. But in the view of information technology, a web-based system is predominant, being closely related to cloud computing and services. The web-based system in remote sensing is somewhat limited in the area of data sharing or dissemination, but it is necessary to extend. This study is to implement a web-based system and its component modules for SAR data processing. First, the previous cases dealt with both web computing and SAR information are investigated. InSAR information processing and concerned modules for a web-based system among SAR research domains are the main points in this work. It is expected that this approach contributes to the first attempt to link web computing technology such as HTML5 and satellite image processing.

• Journal of the Korean Society for information Management
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• v.32 no.1
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• pp.109-134
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• 2015

In the Korean wave 3.0 age, it is needed to prepare how to globalize and hold Korean culture through development of various Korean wave culture contents from existing contents focused on media. The goal of this study is to establish the foundation for developing the various Korean wave culture contents as linking information about other culture contents as well as food culture by extending Korean culture contents service based on LOD. For this purpose, this study established and assorted the concept of food culture through the literature review and case study and analyzed the applicability of the services of food culture contents based on LOD. Futhermore, this study provides the basis on extension of Korean wave culture service and suggests the process of implementation of food culture LOD and service model.

• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.55-62
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• 2007

정보통신 기술과 컴퓨터의 급속한 발달은 과거에 불가능했던 많은 일들을 가능하게 하였다. 디지털 기술의 발전은 기존의 추상적인 것을 구체적으로 체험 가능한 것으로 발전시켰으며, 이를 통해 인간은 경험을 확장 시킬 수 있게 되었다. 즉, 인간의 체험, 인식, 가치, 행위가 가상의 공간으로 무한하게 확장될 수 있기 때문이다. 이러한 배경 속에서 현대 사람들은 체험 공간이 현실 세계와는 다른 비일상적 체험과 욕구실현을 구현할 수 있는 공간이 되기를 원한다. 이에 따라서 체험 공간의 논의가 과거의 시각적 정보전달만을 위한 체험 공간이 아닌 정보와 흥미, 체험을 동시에 줄 수 있는 노력들이 요구, 진행되고 있다. 체험 공간에 있어서 엔터테인먼트 적인 요소가 효과적인 방법론으로 제시되고 있지만, 아직도 시청각적 흥미위주의 직선적인 공간의 이야기로 관람자를 일회적인 관람에서 그치게 하고 있다. 매체를 나열식으로 던져 준다고 해서 사람들이 흥미를 느끼거나 몰입을 경험하지는 못한다. 그러기 위해선 인터렉티브 스토리텔링(Interactive Storytelling)의 인터렉티비티한 요소가 체험 공간에서 효과적일 수 있다. 인터렉티비티는 인터렉티브 스토리텔링의 특징 중 하나로, 이와 같은 인터렉티비티 요소들은 관람자에게 다양한 선택과 통제의 기회를 주기 때문이다. 이에 따라서 체험 공간 속에서 관람자는 스스로 매체와 매체간의 반복과 조합을 통해 관람자 개개인이 새로운 시나리오를 쓸 수 있게 되고 체험 공간은 유동적인 공간이 될 수 있게 된다. 따라서 본 연구는 체험 공간이 관람자 스스로가 만들어가는 공간이 되고, 지각적 체험과 정신적 체험까지 경험할 수 있는 체험의 장이 될 수 있도록 인터렉티브 스토리텔링의 가치를 재해석하고자 하였다. 이러한 인터렉티브 스토리텔링이 공간 속에서 의미를 획득할 수 있는지에 대한 연구를 진행하고자 하였으며, 이를 위해 기존의 체험 공간에 대한 연구와 인터렉티브 스토리텔링의 기존 사례를 선행하였다. 이러한 과정을 통해 인터렉티브 스토리텔링이 체험 공간 안에서 사람들에게 일회적인 경험을 주는 것이 아닌 사람들이 직접 그 공간의 스토리를 만들 수 있는 새로운 체험 공간의 가능성을 가지고 있음을 발견하였다. 이에 따라서 월드컵이 열리는 대표적인 도시인 상암동에 한국 소프트웨어진흥원이 주관하여 건설되는 ‘상암 디지털 파빌리온’을 대상으로 인터렉티브 스토리텔링을 기반으로 한 체험공간 디자인을 작품 형태로 기획 되었으며, 기본적인 시나리오 컨셉을 제시하고 공간의 구조도, 체험 과정(Process)등이 제시된다. 이러한 연구는 기존 체험 공간이 직선적인 내러티브에서 벗어나 체험 공간 속 협업의 가능성을 열어주어 새로운 소통의 장을 마련해 준다는 긍정적인 효과를 기대할 수 있다.

• The Journal of the Korea Contents Association
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• v.16 no.1
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• pp.241-255
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• 2016

This study aims at examining the making and distribution course of performing arts and its converged form with technology and industry in terms of the Contents Promotion Act. Since the 2000s, the inter-area contents making and sharing methods have been changing the making and distribution structure of performing arts. The recent production of performing arts contents live videos extends the areas of arts creation and communication beyond the time and spatial boundaries of performing arts and changes the existing systems. The performing arts which started with nowness and spatio-temporal restriction on the premise is now creating a new platform over the spatio-temporal boundary through the live video. Performing arts, in convergence with the areas of technology and industries, expands universal approaches and shows the public value of cultural fairness at public performing arts centers. In this context, this study aims at seeking the possible extension of performing arts contents by examining how the so-called high-class performing arts such as opera, theatre and classical music combines with the visual industry.

• Journal of Korea Multimedia Society
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• v.9 no.10
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• pp.1344-1353
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• 2006

In terms of the product conforming to a social value of integration of digital and design, the importance of brick toys aiming at the convergence with digital technology in various ways has increased on the strength of expanded base of users and in pursuit of design innovation. Given that previous studies on bricks centered on the role as a tool of flay and education, it is true that studies on other indefinite potentials and expandability in light of multimedia have not been conducted. This study was initiated with a question how the brick system toys, which is gradually gaining popularity, has evolved and is aimed at examining the status of evolvement through study of basic theories and analysis of examples. Based on this, it is intended to explore the possibility of the digital brick system by executing design process utilizing examples of comprehensive brick system with expanded form.

• The Transactions of the Korea Information Processing Society
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• v.7 no.5
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• pp.1464-1473
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• 2000

In this paper, we analyze the cycle property of the (n,k)-star graph that has an attention as an alternative interconnection network topology in recent years. Based on the graph-theoretic properties in (n,k)-star graphs, we show the pancyclic property of the graph and also present the corresponding algorithm. Based on the recursive structure of the graph, we present such top-down approach that the resulting cycle can be constructed by applying series of "dimension expansion" operations to a kind of cycles consisting of sub-graphs. This processing naturally leads to such property that the resulting cycles tend to be integrated compactly within some minimal subset of sub-graphs, and also means its applicability of another classes of the disjoint-style cycle problems. This result means not only the graph-theoretic contribution of analyzing the pancyclic property in the underlying graph model but also the parallel processing applications such a as message routing or resource allocation and scheduling in the multi-computer system with the corresponding interconnection network.