• Proceedings of the Korean Information Science Society Conference
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• 2002.04a
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• pp.859.2-897
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• 2002

네트워크의 급격한 발전에 따라 컴퓨터의 보안 문제가 계속 대두되고 있다. 이러한 보안관리 시스템으로 이동 에이전트를 이용한 침입탐지 시스템이 계속 연구되어지고 있다. 본 논문에서는 기존의 침입탐지시스템을 고찰하고 작은 에이전트의 그룹으로 구성된 자율성을 가진 이동 에이전트를 기반으로 한 모듈 접근방식의 시스템을 위한 모델링을 제공한다. 제안된 모델은 침입 정보를 동적으로 수집하고 탐지 에이전트를 학습시키고 탐지한다. 이동 에이전트는 통신 비용절감, 로컬자원 사용의 한계에서의 독립, 관리의 편의성 제공. 비동기 연산 등 다양한 이점을 가지고, 분산 연산을 위만 유동성 있는 구조를 제공한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.26 no.3D
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• pp.385-391
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• 2006

It is very important to make a decision for locating public facility site in a objectively way people in general agree with. This is because public facility affects not only daily life of people in there but also a regional development. This paper sets up a site selection model which utilize an accessibility theory and GIS spatial analysis techniques. This model has been applied to all the twelve alternatives of Chungnam Provincial Office (CPO) sites which are well known to the public. On the criterion of average access time from all the other areas in Chungnam Province, CH alternative is found to be the best one followed by CH/AS, AS alternatives. On the basis of total people-travel time CH/AS alternative turns out to be the best one followed by CH, AS alternatives. In conclusion top three best locations for CPO are CH and AS area where transportation facility are in good condition and population density is highest in Chungnam Province. This fact implies that a transportation accessibility and population density are the primary key in determining the location of public facility.

• Journal of Korea Society of Industrial Information Systems
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• v.29 no.2
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• pp.1-14
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• 2024

The study aims to comprehend the health needs of multicultural families, identify relevant policies, and explore ways to enhance health information accessibility through Information and Communication Technology (ICT). Employing a qualitative research method, the health status of multicultural families was analyzed through literature review, followed by in-depth interviews. The findings revealed a lower priority given to health policies for multicultural families compared to other governmental sectors, with limited discussion on leveraging ICT for improved accessibility. In-depth interviews highlighted four main themes: "Early experiences in Korean society," "Language barriers in medical facilities," "Unmet healthcare needs for various reasons," and "High demand for health-related services." To safeguard health rights and enhance information accessibility, we recommend strengthening linguistic support in healthcare institutions, implementing government efforts for multicultural families, and designing user-centered ICT platforms.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.7
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• pp.620-628
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• 2016

The homotopy algorithm provides a robust method for determining optimal control, in some cases the global minimum solution, as a continuation parameter is varied gradually to regulate the contributions of the nonlinear terms. In this paper, the Successive Backward Sweep (SBS) method, which is insensitive to initial guess, augmented with a homotopy algorithm is suggested. This approach is effective for highly nonlinear problems such as low-thrust trajectory optimization. Often, these highly nonlinear problems have multiple local minima. In this case, the SBS-homotopy method enables one to steadily seek a global minimum.

• Proceedings of the KAIS Fall Conference
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• 2009.12a
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• pp.310-313
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• 2009

본 연구의 목적은 환자가 거주지가 아닌 타 지역에서 입원의료를 이용하는 요인을 규명하여 주민들의 의료이용에 대한 지역적 접근성을 향상시킬 수 있는 방안을 제시하는데 있다. 2005년 환자조사 입원자료 523,782건을 연구대상으로 하였으며, 2004년 의료기관평가 자료, 2005년 인구센서스, 2006년 보건의료자원실태조사를 이용하였다. 자료분석은 기술통계, 카이제곱 검정, 로지스틱 회귀분석을 실시하였다. 타 지역 입원의료 이용의 가장 큰 요인은 의료기관 소재지의 의료서비스 수준으로, 인구 10만명당 의료기관평가 점수가 9.5점 이상인 지역이 9.5점 미만인 지역에 비해 타지역 입원의료 이용확률이 8.3배가 높았다. 반면 인구 10만명당 병상수가 910병상 이상인 지역이 910병상 미만인 지역에 비해 타 지역 입원의료 이용확률이 2.0배 높았다. 정부는 지역주민의 의료의 접근성을 높이기 위해 의료공급량의 확충과 분배보다는 지역의료의 질적 수준을 향상시키는 방향으로 정책을 펼쳐야 한다.

• The Korean Journal of Financial Management
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• v.22 no.2
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• pp.71-89
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• 2005

The purpose of this research is to examine X-efficiency of Korean local credit unions in 2001 by employing the stochastic frontier approach. This study uses the intermediation approach in order to define outputs and inputs of the credit unions. We define the outputs as the amounts of loans, and securities. The inputs are labor, deposit and physical capital. The price of labor is estimated by dividing the total wages by the number of employees. The price of deposit equals total interest divided by total deposit, and the price of physical capital is also computed to divide the total sales and administrative expenses by the physical capital. By the result of this study, the average efficiency score is 0.81. This fact indicates that credit unions can reduce their inputs by 19% for the given outputs. If results are arranged into quartiles based on the efficiency, inefficiency of top 25% credit unions is below 9%, and half of them is over 17%. In addition, e result shows that the efficiency is significantly influenced by region and size even if credit unions in Seoul and Daegu showed little difference in efficiency by size. Generally, medium size credit unions are more efficient than large size.

• Journal of Environmental Policy
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• v.8 no.4
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• pp.1-24
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• 2009

As commercial use of genetic resources increases in modern society, calls for fair and equitable sharing of the benefits thereof have become increasingly prominent, particularly from developing countries. As a result, negotiations have been ongoing for the "International Regime on Access and Benefit Sharing (ABS)" for genetic resources as a successor to the non-binding Bonn Guideline. 2010 has been set as the target date for the Agreement. As South Korea is more likely to be a user country of genetic resources, it will be necessary for it to take part in the negotiating process and contribute to creating the International Regime on ABS, to ensure both appropriate access to genetic resources and fair and equitable sharing of the benefits arising there from. To develop appropriate response strategies for South Korea, it is critical not only to closely examine the negotiations within the framework of the CBD but also to engage in discussions within thescope of related international organizations and domestic legislation. To achieve this goal, it is imperative for South Korea to form a comprehensive Government Response System, composed of relevant governmental bodies including the Ministry of Foreign Affairs and Trade, and the Ministry of Environment, etc.

• 재활복지
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• v.20 no.1
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• pp.131-150
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• 2016

This study aims to compare global policies on ICT accessibility and to suggest possible solutions that help to enhance ICT accessibility for socially disadvantaged groups. The results indicated that related laws and standards in Korea are relatively well established than Asian countries' whereas they need improvements when compared to the US or the UK. Particularly, in spite of rapid development in information communication technology industry, incorporating the definition of newly developed technologies into existing laws related to ICT accessibility seemed slow that caused reluctancy of related parties to address accessibility issues the new technologies create. In addition, Korean government seems less effortful to develop policies and standards apart from web and mobile application accessibility. In order to resolve the problems, firstly, the period or process of enacting and amending laws can be shorten. Next, a government affiliated research institute can be established to do research and develop ICT accessibility related to user scenarios so that effective policies and standards could be readily provided. Even though other possible solutions can be suggested, what is more important than that is that any interested parties should sustainably make efforts to provide equal opportunities for the underserved populations.

• Annual Conference of KIPS
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• 2009.11a
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• pp.235-236
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• 2009

비휘발성 나노 저장 소자는 고속의 바이트 단위 접근성과 함께 비휘발성을 동시에 갖고 있다. 이와 같은 특징은 차세대 장치로 주목 받을 만큼 오늘날의 컴퓨터 구조에 큰 변화를 줄 수 있는 잠재력을 갖고 있으며 이를 접목한 시스템적인 개발 역시 활발하게 진행되고 있다. 본 논문에서는 기존의 메인 메모리와 나노 저장 소자가 융합된 스토리지 메모리 클래스(SCM) 환경 하에서 입출력시에 원자성(Atomicity)이 보장되도록 설계, 구현된 새도우 블록 기법을 소개하고, 더불어 캐시를 사용하며 발생할 수 있는 데이터 일관성 처리의 보장을 다루었다. 또한 실제 FRAM이 장착된 하드웨어 환경 하에서 개선된 새도우 블록을 동작하여 측정한 성능 결과를 함께 제공한다.

• Annual Conference of KIPS
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• 2008.05a
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• pp.991-994
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• 2008

네트워크 이동성(Network Mobility: NEMO)은 하나 이상의 서브넷으로 이루어진 전체 네트워크가 인터넷 접속점을 동적으로 변화하여 네트워크 접근성도 변화하는 환경을 말한다. 이러한 환경에서 경로 최적화를 위한 여러 프로토콜들이 존재하지만 그중 Prefix Delegation 기법은 다른 기법들에 비해 다방면에서 우수하다. 그러나 본질적으로 바인딩 갱신 스톰(storm) 문제를 수반하기에 NEMO 환경에서의 바인딩 갱신 비용을 최소화 하기위한 연구가 대두하였다. 본 논문에서는 바인딩 갱신 비용의 최소화를 위하여 바인딩 갱신 시 멀티캐스트 기법을 적용하였으며, 경로 최적화 프로토콜은 Prefix Delegation 기법 중 바인딩 갱신 비용을 효율적으로 고려한 IPD[1]를 가정하였다. 성능평가를 위해서 수학적 모델링을 적용하였으며, 본 모델을 통하여 기존 방법들에 비하여 상당한 비용절감 효과를 얻을 수 있음을 보인다.