• The Journal of Korean Association of Computer Education
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• v.11 no.3
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• pp.81-89
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• 2008

The failure occurrence of resources in the grid computing is higher than in a tradition parallel computing. Since the failure of resources affects job execution fatally, fault tolerance service is essential in computational grids. And grid services are often expected to meet some minimum levels of quality of service (QoS) for desirable operation. However Globus toolkit does not provide fault tolerance service that supports fault detection service and management service and satisfies QoS requirement. Thus this paper proposes fault tolerance service to satisfy QoS requirement in computational grids. In order to provide fault tolerance service and satisfy QoS requirements, we expand the definition of failure, such as process failure, processor failure, and network failure. And we propose resource scheduling service, fault detection service and fault management service and show implement and experiment results.

• Journal of the Korean Society for Library and Information Science
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• v.55 no.4
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• pp.245-266
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• 2021

In this study, in order to practice the social inclusion of libraries, the related policies currently announced in the 3rd Comprehensive Library Development Plan were examined, and the current status of tasks promoted by central administrative agencies and metropolitan and provincial libraries was examined based on these policies. As a result, first, in terms of active information welfare realization, various programs and services are being implemented to bridge the knowledge and information gap, but it seems that the scope of the target should be expanded in the future, cooperation with related organizations, and infrastructure improvement. Second, in terms of expanding the openness of the space, the expansion of the open space as an open space and the application of universal design are being performed. In the future, it seems that the scope of universal design application should be expanded in consideration of budget investment for continuous space reconstruction and diversity of users. Third, in terms of linking services across boundaries, services and programs are provided to infants and toddlers, children, women, the elderly, the underprivileged, job seekers, and multicultural families. In the future, it seems that the improvement of the service system for the expansion of inclusive services in libraries should precede, and cooperation between related ministries should be made to provide differentiated services. Finally, it is expected that future policy-making tasks for social inclusion should be considered not only for books, programs, and spaces, but also for librarians' education, establishment of cooperative networks with related organizations, and marketing for services and programs.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2003.05a
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• pp.457-466
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• 2003

인터넷과 같은 대량의 정보에 대응할 수 있는 고성능 정보검색시스템을 구축하기 위해서 지금까지는 고가의 중대형 컴퓨터를 주로 활용하여 왔으나, 최근 가격대 성능비가 높은 PC 클러스터 시스템을 활용하는 방안이 경제적인 대안으로 떠오르고 있다. PC 클러스터 시스템에서는 전체 작업을 개별 노드 즉 PC에 가능한 균등하게 분배함으로써 성능을 극대화 하고자 하는데, 하나 또는 그 이상의 노드에 문제가 발생하는 경우 전체시스템의 성능이 매우 저하되거나 정상적인 서비스를 제공하기가 어려워진다. 이러한 상황에서 고장 포용성의 달성은 1년 365일 지속적으로 운영되어야 하는 많은 응용분야에서 반드시 해결해야 하는 문제이다. 본 논문에서는 PC 클러스터를 활용한 병렬정보검색시스템에서 고장 포용성을 극대화하기 위하여 각 노드의 색인어 역파일을 이웃 노드에 효율적으로 중복하여 저장하는 방안과 이를 활용한 효과적인 병렬정보검색 방법을 제안한다. 대규모 말뭉치를 활용한 실험결과 본 논문에서 제시하는 고장 포용성 향상을 위한 색인어 역파일 중복 저장방안이 충분한 효율성과 실용성이 있음을 확인하였다.

• Journal of Korean Library and Information Science Society
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• v.51 no.2
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• pp.295-318
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• 2020

This study was conducted to grasp the changing user needs, especially the changing information needs of the vulnerable groups of knowledge and information. The study analyzed the information needs of the migrants in Area A by introducing a community-based participatory research methodology. The authors cooperated with the local community throughout the entire course of the study and proposed an inclusive library strategy for the underprivileged in the A region. Migrants were in demand for easy writing materials, reading activities programs, leisure culture programs, and literacy programs. In particular, it was analyzed that services should be provided through cooperation with related organizations. As a result of the study, it was suggested to provide experiences of deeply participating in the current library and to provide various information sources (resource guides) and to promote through children.

• Journal of the Korean Regional Science Association
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• v.39 no.3
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• pp.65-83
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• 2023

The purpose of this study is to conceptually define "spatial inclusivity" and empirically examine the impact of disability severity and spatial inclusivity on social participation among individuals experiencing physical discomfort. The social and spatial environment of the residential area is crucial for individuals with disabilities who face limited activity range and complex barriers due to physical constraints. In this study, spatial inclusivity from the perspective of people with disabilities is defined as establishment of equal relationships with non-disabled individuals within the local community, as well as the availability of basic facilities and services in a safe urban space that allows for access and utilization. This concept consists of three dimensions: individual networks, social environment, and physical environment. The physical environment encompasses safety levels, natural environment, living environment, public transportation conditions, medical services in residential areas. We used the 2019 Community Health Survey to examine the relationship between disability severity, spatial inclusivity, and social participation using a two level regression model. The findings are as follows: Firstly, personal relationships at the individual level and the physical environment at the local level have a positive impact on social participation. Secondly, when identifying dividing the physical environment into five sub-factors, no significant influence of individual factors is found. Thirdly, trustworthy and friendly social environment at the local level has a negative impact on social participation. These results provide empirical evidence that spatial inclusivity has an effect on the social participation of individuals with disabilities and suggest implications for urban planning to create and enhance conditions for the social participation of individuals with disabilities.

• Journal of the Korean Institute of Landscape Architecture
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• v.47 no.5
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• pp.28-40
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• 2019

In order to resolve the imbalances in the supply of living SOCs according to socio-economic status, location, and population groups, the discussions on inclusive city policies are expanding. The purpose of this study is to propose an Index of Park Derivation (IPD) as an alternative indicator for the promotion of an inclusive urban park policy that can be applied in the 7 major metropolitan cities to select a region with a relatively high park needs. The main research results are as follows. First, the concept of an inclusive urban park policy is defined as "a policy to supply to manage high-quality park services with priority given to areas with low socio-economic and environmental status, such as a large amount of elderly, children, low-income families, areas vulnerable to disasters, such as heat and fine dust, and population groups." Second, we developed the index of park derivation (IPD), which is a combination of 17 variables including park service level, demographic characteristics, economic and educational level, health level, and environmental vulnerability. The variables that constitute the index of park deprivation (IPD) can be applied to SOC policies outside the parks, such as sports facilities, daycare centers, kindergartens, and public libraries. Third, applying index of park deprivation (IPD) to 1,148 Eup/Myeon/dong areas of the 7 metropolitan cities resulted in areas with relatively high park service needs. This study implies that the central and the local government suggest an alternative index to promote an inclusive urban park policy based on statistical and geographical information and data that can be easily accessed and utilized.

• Journal of the Economic Geographical Society of Korea
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• v.22 no.4
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• pp.539-554
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• 2019

This study suggests a conceptualization model of 'cultural inclusiveness' organically connected to social inclusiveness, by expanding the implications of urban inclusiveness to the domain and relationship. Based on the process of necessity of relation, connection of space, and execution of act, the cultural inclusiveness could be connected to the formation of organic/learning relation, the creation of openness focusing on public space, and the practice of diverse subjects. Concretely, the concept of cultural inclusiveness is applied to the case of 'Hongdae-ap'. The recent Hongdae-ap is showing the value of coexistence such as the establishment of environment that could protect the diversity of individual subjects and groups(artists, residents, government officials, students, cultural activists, citizens, tourists, and etc.), the formation of public space such as 'Hongdae-up playground', 'pedestrian-friendly street', and 'Gyeongui-Line book street', social network service & horizontal network, and access.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2007.02a
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• pp.29-32
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• 2007

지상파 DMB 상용 서비스가 시작된 지 1년이 경과함에 따라 DMB 시청자의 수가 급격히 증가하였다. 그러나 DMB와 융합된 새로운 서비스가 활성화가 활발하지 못하고, 따라서 여러 가지 부가 수익서비스가 창출되지 못하고 있다. 그 이유 중의 하나는 기존에 제안된 양방향 데이터 서비스들은 모바일 홈페이지로의 연결하는 방식이라, 시청자가 DMB 단말기의 작은 화면에서 단말기의 버튼이나 터치스크린을 사용하기 불편하고, 방송시청이 불편하다. 또한, 기존의 방송참여 방식인 ARS, SMS 방식을 포용하지 못한다. 본 논문은 기존의 시청자 참여 방식을 분석하고 기존 방식의 약점을 보안하여 URL 방식 명령을 통한 양방향 서비스를 제안한다. 이 방법은 작은 디스플레이를 통해 홈페이지 방식을 고집하지 않고, 기존의 ARS, SMS를 포용하며, 단순한 동작으로 시청자 참여가 가능하다. 본 논문이 제안하는 방법은 서비스 방식 및 구조에 따라 ARS 서비스를 제공하는 URL방식 명령, SMS 서비스를 제공하는 URL 명령, 서버응용 호출서비스를 위한 URL방식 명령(SERVER-URL), 클라이언트 응용호출 서비스를 위한 URL방식 명령(CLIENT-URL)으로 분류된다. 본 방법들은 사용자의 참여가 단순하게 이루어지도록 방송시 송출되며, 이러한 방법은 ol동 방송에 특히 적합할 것으로 사료되어, 앞으로 보다 실용적인 DMB 기반의 융합 서비스에 사용될 것으로 사료된다.

• Journal of Service Research and Studies
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• v.10 no.3
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• pp.1-22
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• 2020

This study was conducted to derive the new manager model in service economy era. It was logically explained that the modern economic society is different from the existing economic society, the modern organization that is the subject of management is different from the existing organization, and the tasks required by management are different from the existing tasks. It suggested the managerial model required for new managers. According to the proposed manager's model, the tasks required of new managers and essential qualities as managers to perform the tasks were presented. It suggested the role model that managers with required qualities should play. The role of a manager who becomes one with customers, the role of a manager who controls even his irrationality, the role of a manager who combines discernment and indiscriminateness, a flexible leadership role that combines charisma and tenderness, an administrator role that embraces regulations and non-regulations, and vision and non-vision. We derived the role of a manager who manages management, and a manager role model that utilizes both competition and non-competition. The managers engage in two opposing roles and perform management activities in a spiral dialectical cycle that develops while resolving the contradictions of each role. The method of embracing the two opposing parties internally and externally and the dialectical management execution process according to the change of the space-time axis were presented by borrowing the models of The Book of Change. Future research needs an empirical analytical study on this new Model. There is a need for studies that expand this study and develop it into a practical model and verify it in an analytical way.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04b
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• pp.1261-1264
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• 2002

개인 통신 서비스에서 주된 당면 문제중의 하나는 위치를 자주 이동하는 많은 이동 단말기들의 위치를 찾는 것이다. 위치 관리를 성취하기 위하여 많은 네트워크 신호처리 트래픽과 데이터베이스 질의가 요구된다. 다수의 정책들은 이동 단말기의 현재 위치를 저장하기 위하여 위치 레지스터 데이터베이스를 사용하고, 그 위치 레지스터의 고장에 대해 약점을 가지고 있다. 이 논문에서, 우리는 위치 레지스터들의 고장을 포용하는 분산 홈 위치 레지스터를 갖는 결함 포용 전방 포인터 방법을 제안한다. 제안하는 방법의 성공을 분석적 모델로 평가하고, Biaz의 우회 전방 정책, 두개 경로 전방 정책과 성능을 비교한다.