• CDE review
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• v.3 no.2
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• pp.41-44
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• 1997

Web을 위한 에이전트를 구축하거나 구입할 때, 우리는 그 에이전트가 가능한 한 잘 수행하기를 바란다. 이는 점점 에이전트가 Web의 정보 자원들 뿐만 아니라 거기에서 운영되는 다른 에이전트들을 이용할 수 있어야 함을 의미한다. 그리고 멀지 않아 대단히 많은 에이전트들이 존재할 것이다. 정보적으로 혼란한 Web으로부터 진화할 것으로 보이는 계산구조는 사용자, 서비스, 그리고 데이터 자원들을 대표하는 무수한 에이전트들로 구성된다. 이러한 구조에서의 전형적인 사용 패턴으로, 자원 에이전트는 서비스들에 광고하고, 사용자 에이전트는 이러한 서비스를 이용하여 자원 에이전트를 찾아 필요한 정보에 대해 질의하는 것이다. 서로 다른 사용자들을 대표하는 에이전트들이 정보를 찾고 융합하는데 협력할 수도 있으나, 상품과 자원을 위해 경쟁할 수도 있다. 유사하게 서비스 에이전트들은 사용자, 자원, 그리고 다른 서비스 에이전트들과 협력하거나 경쟁할 수 있다. 그들이 협력자이건 경쟁자이건 간에, 에이전트들은 목적을 갖고 상호작용해야만 한다. 대부분의 의도적인 상호작용은 - 정보를 알려주거나, 질의하거나, 또는 속이기 위하여 - 에이전트들이 서로 대화하는 것을 필요로 한다. 그리고 이해 가능한 대화를 위해서는 서로가 이해할 수 있는 언어가 필요하다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.06a
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• pp.144-146
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• 2011

VTS 항해의 특징은 동적복잡계의 특성을 보인다는 점이다. 자율적인 행위자들인 여러 선박이 서로 영향을 끼치며 상호작용하기 때문에 불확실성이 지배하게 된다. 이러한 불확실성으로 인한 위험을 극복하기 위한 방안으로 본 연구에서는 협력항해(co-navigation)이라는 개념을 중심으로 논의를 전개하였다. 본질적으로 협력항해는 수많은 상황판단과 의사결정들의 집합체이기 때문에 우선 개별 선박들의 상황판단이 어떻게 이루어지는가를 연구하는 것으로부터 출발하여야 한다. 따라서 본고에서는 항해에서 있어서의 상황자각이 어떻게 기능하는지 알아보고, 개인적인 상황판단에서 VTS 전체 차원의 최종 의사결정이 이루어지는 전 과정을 6단계로 세분하여 논의를 전개하였다. 이렇게 세분한 각 단계에서 양질의 인지과업이 이루어지도록 돕고, 이때 저지르게 되는 실수를 수정할 수 있도록 여유시간을 확보할 수 있도록 함으로써 궁극적으로 항해위험을 줄일 수 있다는 것을 이번 연구에서 밝히고자 하였다.

• The Journal of Korean Association of Computer Education
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• v.9 no.3
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• pp.47-65
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• 2006

For the purpose of analysis, the supporting methods for inquiry process is divided into 3 types; when CSILE supports low-level of basic inquiry process, when CSILE supports high-level of integrated inquiry process and when CSILE supports both low-level and high-level of inquiry process. Strauss and Corbin's(1998) grounded theory was used to analyze inquiry process of learning groups. 48 elementary school students in 6th grade participated in this study. Those participants were assigned into 3 groups and each group consisted of 16 students. Then, participants studied a retarded unit in science subject cooperatively for 4 weeks using CSILE program. Through this extensive experiment, 3 types of inquiry model was revealed.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.18 no.2
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• pp.49-54
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• 2018

In this paper, we study the secrecy outage probability when using cooperative diversity and jammer in a relay system based on decode-and-forward. MRC method is used in receiver and eavesdroppers to obtain cooperative diversity. To use the MRC technique, direct links between the sender and receiver, and between the sender and the eavesdropper are used, respectively. Jammers are used to generate intentional noise siganls to increase security capacity. Jammers generate intentional noise, degrading the channel quality of the eavesdropper and helping physical layer security be realized. The secrecy outage probability is used to evaluate security performance. Assume that the system is under the Rayleigh fading channel.

• Journal of the Korean Society for Library and Information Science
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• v.45 no.1
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• pp.11-27
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• 2011

This paper aims to seek ways of optimizing the operations of Collaborative Digital Reference Service(CDRS) in Korea. CDRS tries to specialize the reference service through world-wide collaborative service. In this study seven international CDRS services including "QuestionPoint" operated by ALA and one national service, "Ask a Librarian" by the National Library of Korea were surveyed. A focused analysis of CDRS in Korea shows not only a sharp increase in use by the public, but also much application in research and academic activities by university students and workers.

• Proceedings of the KAIS Fall Conference
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• 2010.05b
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• pp.1037-1040
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• 2010

최근 미국의 애플사에서 시작된 스마트폰과 관련된 비즈니스가 국내의 대기업과 중소기업에게 신 수종 사업 모델로서 매우 큰 영향력을 주고 있다. 향 후 10년을 이끌어 갈 수 있는 전략 사업 모델로서 그 중요성에 대한 다각도의 연구와 사례 분석이 진행 되고 있다. 이와 더불어 수십년간 뛰어난 기술력과 품질을 앞세워 세계 시장에서 승승장구하던 일본의 자동차 제조업이 미국을 중심으로 한 해외 시장에서 연이은 품질관련 사고로 인해 고전을 면치 못하고 있으며 이의 한 원인으로 중소기업과의 불공정 거래에 기인한 품질관리에서의 허점에 대한 지적도 있다. 두 가지의 사례가 시사하는 바는 대기업의 일방적인 주도로 인프라 구축에서부터 서비스 제공 및 최종 완성품의 제조와 소비자 납품으로 이어지던 전통적인 제조업 형태의 한계 상황에 대한 일종의 새로운 패러다임의 출현을 예고하는 것은 아닐까 예측할 수 있다. 이와 관련하여 대기업과 중소기업의 상생 협력관계에 대한 연구를 통하여 스마트폰 비즈니스가 새롭게 제시 할 수 있는 상생협력 패러다임에 대해 고찰하여보고자 한다.

• The Journal of Korean Association of Computer Education
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• v.7 no.5
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• pp.57-70
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• 2004

This study is the subsequent study that has the objectives examining the relationships among 'substantive understanding', 'scientific literacy' and 'learning intention' in computer supported intentional learning environments and inquiry ability, variables for affecting knowledge construction derived from the finding out of the former study. As a result, the current study confirmed in CSILE the close correlation between 'the learning intention for scientific inquiry' and 'substantive understanding', between 'the learning intention for scientific inquiry' and 'scientific literacy'. Another result showed that 'scientific literacy' was the most significant predictor on inquiry ability. Base on the result of this study, the present researcher is about to make suggestions to stimulate learners' scientific literacy in CSILE-based inquiry learning.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.23 no.3
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• pp.231-251
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• 2012

The present study was intended to present desirable directions of project learning of curriculum subjects utilizing school libraries. To this end, lesson contents including theme selection policies and selected themes were grasped centering on Chinese project learning conducted in the school library of S academic high school and examples of students' reports were presented. A questionnaire survey was conducted on 117 high school students in the second year who participated in the Chinese project class to analyze their interest in the themes, their perception of school library-assisted instructional processes and how the school library-assisted Instruction helped the students Also, this study analyzed differences in the perception of the help provided by the school library-assisted Instruction among students in the department of liberal arts, those in the department of natural sciences and those in the department of arts. The results of the study indicated that the students' satisfaction of the school library-assisted Instruction was high.

• Information Systems Review
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• v.21 no.3
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• pp.27-47
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• 2019

The purpose of this study is to propose a conceptual model for the tourism application of the block chain consensus construct and to test the intention of technology acceptance of potential consumers. First, we have tried to investigate the security, reliability, functionality was derived. Secondary, structural validation of the proposed model confirmed the factors influencing the acceptance of block chain technology in terms of consumers. Based on this, we apply the Unified Theory of Acceptance and Use of Technology to evaluate. Individual innovation and block-chain technology have a strong causal relationship with the proposed block chain acceptance intentions based on the Hybrid Block Chain Consensus system, which shows strong innovation and strong cognitive status. In addition, the factors directly affecting the acceptance of block-chain are the benefits expected from the block chain, the technical infrastructure required to use the service, the perceived benefits available. The influence of the surrounding environment on the adoption of technology and ease of use on new technology did not affect the acceptance intention significantly.

• The Journal of Society for e-Business Studies
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• v.23 no.1
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• pp.23-36
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• 2018

This study analyzed the causal relationship between cooperation elements and the performance of joint R&D and verified the mediating effect of collaborative efforts. Cooperation elements consist of strategic agreement, complementation of resources, trust and absorption capacity, and influence the intention to participate in the joint R&D. The purpose of this study is to identify the effects of the cooperation elements and collaborative efforts on the short-term and long-term performance of the joint R&D. The results are summarized as follows: First, it is verified that strategic agreement, complementation of resources, trust and absorption capacity constitute the second order factor of cooperation elements, which positively affects the joint R&D performance. Second, it is verified that collaborative effort play a role as a mediating factor in the relationship between joint R&D performance and cooperation elements. Specifically, it was confirmed that positive effects on short-term performance of the joint R&D can be increased through cooperative efforts. However, in the case of long-term performance, the effects of collaborative efforts could not be confirmed.