• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.6
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• pp.621-634
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• 2017

This study is a study on the requirements, resources, and role of policy broker in the policy process. Particular attention was paid to two requirements of legitimacy (official authority, political support) and professionalism (information and expertise, skilled leadership) as the requirements of policy broker. This study analyzed the process of transforming the actor conflicts surrounding the media rep legislative process into a cooperative relationship by being mediated by a strong influential policy broker. Policy brokers can mediate opinions among participating actors and play a role in coordinating conflicting interests. In the mediarep policy process, the policy brokers were unable to resolve conflicts due to lack of legitimacy and expertise in the first phase (legislative grace period) and the second phase (legislative loophole). However, the legitimacy of the six subcommittees of the National Assembly (the legislative period) and the expertise of the Korea Communications Commission were able to succeed in policy-making by acting as a successful policy brokers through complementary activities.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2003.05a
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• pp.233-238
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• 2003

인터넷의 급속한 성장과 함께 분산 네트워크 환경 하에서의 정보 검색 문제는 중요한 이슈가 되고 있다. 기하급수적으로 증가하는 정보의 홍수 속에서 사용자가 원하는 정보나 서비스를 효율적으로 찾아주는 방법은 꾸준히 연구되고 있다. 이러한 문제를 해결하기 위해서 멀티에이전트(Multi-agent)환경 하에서 원하는 서비스를 제공하는 에이전트들을 효율적으로 탐색해 주는 에이전트간의 매치메이킹(Matchmaking) 시스템은 좋은 해결방안이 될 수 있다. 본 논문에서 제안한 확장 매치메이킹 알고리즘은 중개 에이전트가 특정 도메이 지식을 효과적으로 이용할 수 있도록 문제에 대한 표현과 추론 과정이 명확한 CSP로 모델링 함으로써 불필요한 탐색 공간을 효율적으로 제거하도록 하였으며, 서비스 요청 에이전트의 요구사항을 만족시키면서 가능한 한 중복되는 에이전트 쌍이 최소화 되도록 일반적인 유사도(Similarity)와 함께 새로운 경쟁도(Competition)를 고려하였다. 본 논문에서 제안한 알고리즘이 기존의 매치메이킹 알고리즘보다 더 효율적인 것을 보이기 위해 온라인 인력 채용박람회를 모델로 하여 중개 에이전트가 직업을 구하는 서비스 요청 에이전트와 인재를 모집하는 서비스 공급 에이전트간의 매치메이킹 문제에 대해 실험 평가하였다.

• Bulletin of Korea Environmental Preservation Association
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• v.17 no.2
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• pp.72-73
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• 1995

• KIISE Transactions on Computing Practices
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• v.20 no.12
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• pp.664-669
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• 2014

As the prevalence of cloud computing increases, various cloud service types have emerged, such as IaaS, PaaS, and SaaS. The growth and diversification of these cloud services has also resulted in the development of technology for cloud service brokers (CSBs), which serve as intermediate cloud services that can assist cloud tenants (users) in deploying services that fit their requirements. In order to broker cloud services, CSBs require the specification of structural models in order to facilitate the analysis and search for cloud services. In this study, we propose a variability-based service analysis model (SAM) that can be used to describe various cloud services. This model is based on the concept of variability in the software product line and represents the commonality and variability of cloud services by binding variants to each variation point that exists in the specification, quality, and pricing of the services. We also propose a virtual cloud bank architecture as a CSB that serves as an intermediate to provides tenants with appropriate cloud services based on the SAM.

• The Journal of the Korea Contents Association
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• v.17 no.12
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• pp.49-63
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• 2017

Interdisciplinary convergence research is widely seen as a collaborative research between different disciplines, which is often driven by common agenda or problems in pursuit of a particular common objective. Thus, the purpose of interdisciplinary cooperation in convergence research is to bring each discipline's unique perspective together with the academic expertise of researchers in order to share common problems that cannot be solved effectively without research partnership. We present empirical evidence on how interdisciplinary research relationships are formed to facilitate research networking in convergence relations. In particular, we used network analysis to investigate how interdisciplinary linkages and convergence research networks has formed over time. We found that the convergence research networks were implemented by the interdisciplinary convergence research support program as intended. We did find that research field with high indegree and outdegree in a network played critical roles on the dynamics and degree of interdisciplinarity. Finally, we could find evidence that the role of liaison brokers triggered relational dynamics in interdisciplinary research collaboration.

• Information Systems Review
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• v.11 no.3
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• pp.83-106
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• 2009

Trust is becoming one of the critical forces that drive consumers into purchases in e-marketplaces, as consumers face uncertainty associated with buying online from unknown sellers. In this paper we propose a consumer trust model specifically designed for an online marketplace. It aims at examining how intermediary and site characteristics of an e-marketplace affect factors of trustworthiness, and understanding the relationship between trustworthiness factors and trust in intermediary. Findings from an empirical analysis indicate that both intermediary and site characteristics are positively associated with factors of trustworthiness - namely, competence, integrity, and benevolence. In addition, all the three factors of trustworthiness were found to have positive relationship with overall trust in intermediary; in particular, integrity had higher association with trust than the other two factors. The paper concludes with suggestions for building consumer trust for the owners of online marketplaces.

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.327-334
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• 2020

Recently, mobile and smart devices are rapidly spreading. As a result, real estate services, which were formerly face-to-face, have now been replaced by mobile environments. This study focuses on the real estate app service and 261 samples were used for the empirical analysis. The results of the hypotheses test using structural equation model are summarized as follows. First, performance expectancy, facilitating conditions, security and aesthetic perceived by users of real estate services have positively influence on positive attitude, but effort expectancy and social influence do not. Second, positive attitude of real estate services have positive effects on service Acceptance. Third, involvement moderated the relationship between positive attitude and service Acceptance. Based on the results of the analysis, it provided meaningful implications for practitioners and researchers in related fields.

• Journal of Information Management
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• v.24 no.4
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• pp.43-57
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• 1993

This paper discusses the basic concept of artificial intelligence(AI) and expert system and a particular technique(fuzzy logic) applied to expert systems. It examines expert system as search intermediaries during the past few years, particularly in terms of the following functions: 1) handling certain classes of questions on a particular database, 2) assisting in decision making for selecting databases or search terms, and 3) offering advice while keeping the end-user in the control of the searching process. The limitations and difficulties involved in developing such expert systems are also presented.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• fall
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• pp.15-17
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• 2021

사물인터넷 등, ICT 기술을 활용하여 현실의 공간으로부터 수집된 정보를 초정밀 가상 공간정보 기술과 융복합하여 제공하는 디지털 트윈 기술이 대두되고 있다. 이러한 디지털 트윈 기술은 제조, 교통, 에너지, 환경, 의료 등 다양한 현실 세계의 문제를 분석하고 해결하기 위한 기술로 확장되고 있다. 본 논문은 재난 안전, 특히 화재 안전분야에서 디지털 트윈 시스템 적용방안을 제시하는 것을 목적으로 한다. 이를 위해 화재 안전과 관련하여 다양한 센서의 수집 및 융복합처리와 디지털 트윈을 위한 표준중개 변환 방법을 제안하였다. 또한, 센서객체 및 공간 객체 모델링을 통하여 디지털 트윈 공간을 구성하고 수집된 다양한 화재안전정보와 맵핑 및 분석을 수행하는 디지털 트윈 화재 안전시스템을 제안하고, 프로토타입을 개발하였다.

• The Journal of the Korea Contents Association
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• v.19 no.10
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• pp.45-58
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• 2019

As modern people's daily lives are becoming more harsh in Korea, the so-called Kidults generation has appeared since a few years ago as adults have come back to their childhood sensibility and are exposed to various cultures online, and there are many people who have a hobby for collecting toys. However, as there is currently no formalized system for individual toy trade online, it is difficult to acquire expertise and share information with each other through a major portal site's $caf{\acute{e}}$, and is exposed to security or fraud while trading toys. In this paper, we design and implementation of a web-based toy trading system. Analyzing the advantages and disadvantages of the various trading and relay systems currently in use, it will provide opportunities for professional toy knowledge and information exchange to many users who have a hobby of collecting toys, and will greatly help vitalize the toy market through a secure and convenient trading environment between individuals.