• Journal of Korea Port Economic Association
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• v.29 no.4
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• pp.73-95
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• 2013

This paper analyzes a competitive shipping market in East Asia in order to explore how container carriers make decisions on ship size, number of ships, service frequency, and service route. A sequential-move game based on non-cooperative game theory is applied to establish the models for the decision-makings involving the transportation volumes, freight rates, costs, and market shares of the service routes from Shanghai or Hong Kong to the ports in Busan, Gwangyang, and Incheon. According to the sub-game perfect Nash equilibrium solutions proposed by these models, carriers' decisions in such a competitive environment vary depending on sailing distance, transport demand, and freight rates. Therefore, carriers are recommended to reflect the optimal equilibrium solutions and a variety of decision factors when formulating strategies for transportation networks and operating fleets. Furthermore, ports should establish management strategies for these factors to provide optimal equilibrium solutions for carriers' transportation networks.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.915-940
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• 2017

본 연구는 산업조직이론과 자원기반관점을 통합하여 사업 다각화에 대한 산업환경요인과 기술역량의 결정요인들로 구성한 통합모형을 설계하고, 제안한 모형을 스마트공장 ICT융합기술(애플리케이션 및 플랫폼 분야) 특허 출원기업 272개사의 6개년(2010년~2015년) 특허 및 재무데이터를 이용하여 실증적으로 분석하였다. 고정효과 패널모형을 분석한 결과, 기업의 사업다각화 의사결정에 영향을 미치는 요인들 가운데 기술경쟁력은 사업다각화 수준을 높이는 긍정적 효과가 검증되었다. 추가적으로 2단계 최소자승 고정모형을 분석한 결과, 출원특허수 보다 특허의 기술융합수준이 기술경쟁력을 증대시키는 유의미한 긍정적 효과가 있음을 검증하였다. 본 연구 결과에 근거하여 기업의 ICT융합기술자원 및 역량을 바탕으로 한 사업 다각화 전략기획방향과 정부 R&D 정책과 관련하여 융합기술자원의 사업화 지원방안에 대한 시사점을 제공하고자 한다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.32 no.2
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• pp.95-107
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• 2014

In general, topographical phenomena are represented graphically by data in the spatial domain, while attributes of the non-spatial domain are expressed by alpha-numeric texts. GIS functions for analysis of attributes in the non-spatial domain remain quite simple, such as search methods and simple statistical analysis. Recently, graph modeling and network analysis of social phenomena are commonly used for understanding various social events and phenomena. In this study, we applied the network analysis functions to the non-spatial domain data of GIS to enhance the overall spatial analysis. For this purpose, a novel design was presented to integrate the spatial database and the graph database, and this design was then implemented into a WebGIS system for better decision makings. The developed WebGIS with underlying synchronized databases, was tested in a simulated application about the selection of water supply households during an epidemic of the foot-and-mouse disease. The results of this test indicate that the developed WebGIS can contribute to improved decisions by taking into account the social proximity factors as well as geospatial factors.

• Journal of the Korea Society for Simulation
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• v.25 no.3
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• pp.85-95
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• 2016

In National Defense field, the importance of M&S and T&E has been increased due to complexity of modern Weapon System. And research reducing time and cost is being conducted continually on using limited resources efficiently. In the existing research, Weapon System's Performance Evaluation System using the Process-based method has been in progress. But, Objective basis or scientific method is insufficient in selecting appropriate function of a target to performance evaluation. Due to this, it's difficult to select functions suitable to the situation in same type. Also, Requirements of user and interrelation of evaluation factors can't be reflected systematically. In this research, it proposes the method to reflecting requirements of user, interrelation of elements in realistic situation for selecting evaluation object in Performance Evaluation Simulation. First, Evaluation Objects is selected using ANP which is multi-criterion decision making method. Second, decision support system is constructed using Programming Language(C#) based on the research result.

• The Journal of the Korea Contents Association
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• v.20 no.2
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• pp.1-14
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• 2020

Leading the fourth industrial revolution era requires science and technology strategies that establish original research directions at the national level. To this end, it is necessary to look at the research and development activities for the fourth industrial revolution of technology-leading countries. In this study, the research programs of the U.S. Intelligence Advanced Research Projects Activity(IARPA), an organization focusing on cutting edge research on science and technology information such as artificial intelligence, are investigated by using network analysis. The findings show that, resolving around the information identification and forecasting, decision making and cybersecurity clusters, IARPA's research programs largely focus on finding hidden information and predicting specific events, supporting decision making by considering changes in and outside organizations or establishing cybersecurity. Also, this study finds that China and Japan, representative technology-leading Asian countries, refer to the research programs of IARPA to establish their science and technology policies. The results of this study suggest implications for Korea's science and technology policies in response to the fourth industrial revolution era.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.12
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• pp.5097-5106
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• 2010

Two perspectives on developing better decision capabilities for a warranty system can be identified: one involving the inclusion of a 'learning' module and the other the inclusion of a 'prioritization' capability. This paper demonstrates how a warning process can be included in a warranty system by coupling with a neural network's learning capabilities. In addition to the neural network, a method is employed for assigning priorities to warning criteria by using the analytic hierarchy process (AHP). Thus, it is possible to construct an integrated system with three components: the warranty system, the AHP module, and the neural network system. A case study is provided to enhance the accuracy of warning/detection judgment in a warranty system for automobile companies, having many factors related to the warranty system.

• Journal of Korea Multimedia Society
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• v.16 no.3
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• pp.354-365
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• 2013

Node deployment is one of the important problems in achieving good quality of service in wireless sensor network. The purpose of this paper is to develop an interactive system that supports user's decision makings in designing sensor fields. The system provides grid-based initial deployment algorithm supporting three types of node deployment pattern, area-fill, path-cover, and barrier-cover deployment pattern. After initial deployment, an iterative refinement algorithm can be applied, which takes care of the irregularity of the deployment area and the heterogeneity of sensors. The proposed system helps users to effectively deploy nodes in the sensor field, analyse the detection performance of the deployment, and perform network simulations. The developed system can be utilized as a part of the development environment of the surveillance sensor network system.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.05a
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• pp.631-632
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• 2020

본 논문에서는 고객추천지수(NPS : Net Promoter Score)를 이용하여 2019년도 이용 고객의 서비스 만족 및 품질에 대하여 모니터링하고 기관의 고객만족 개선 활동에 대한 고객의 의견을 분석하기 위함이다. 한국과학기술정보연구원의 한민족과학기술자네트워크(KOSEN : The Global Network of Korean Scientists & Engineers)는 전 세계 한인 과학기술자들을 하나로 연결하는 네트워크 서비스로 2019년 현재 70여개국 14만여 회원들로 이루어진 거대한 네트워크로 성장하였습니다. 1999년 이래 과학기술부, 교육과학기술부, 미래창조과학부, 과학기술정보통신부 지원 사업으로 한국과학기술정보연구원에서 운영해오고 있습니다. 네트워크를 통한 한인 과학기술자들의 지식 공유가 주목적이며, 연구자들을 위한 다양한 서비스를 무상으로 제공하고 있습니다. 이를 위해 서비스를 경험한 262여 명의 의사결정자를 대상으로 한민족과학기술자네트워크에 대한 고객충성도를 분석하였다. 이와 같은 연구결과는 인터넷 등 정보의 발달로 고객의 긍정적 또는 부정적인 구전이 급속도로 노출되는 환경에서 고객의 만족도를 관리함으로써 핵심고객을 확보하는데 사전 예측자료로 활용될 수 있다.

• 한국벤처창업학회:학술대회논문집
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• 2009.10a
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• pp.293-308
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• 2009

본 연구는 프랜차이즈 가맹본부 실무자를 대상으로 한 교육 과정 개발의 방향을 의미 네트워크분석을 통해 밝히기 위해 프랜차이즈 CEO 그룹, 실무자 그룹을 대상으로 동적집단 면접(DGI)을 실시하였다. 실무자 대상 교육에 있어서 의사결정자인 CEO 그룹과 교육 당사자인 실무자의 교육에 대한 의견을 종합하여 교육의 개발 방향을 종합하였다. 연구결과 프랜차이즈 교육의 개선 방향으로 1) 교육의 전문화와 세분화, 2) 프랜차이즈 내부 노하우의 공유 및 이전, 3) 교육 운영 과정의 현장 지향성의 세 가지가 도출되었다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.13 no.6
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• pp.34-42
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• 2014

This study is a fundamental research to determine the emergency evacuation roads considering road network function and connectivity. First of all, the functional aspects of the road networks are analyzed in the target area, Sejong city, by using degree centrality(DC) and closeness centrality(CC) from GIS based database. Secondly, how network connectivity makes a change in user's travel pattern and travel time and how it affects the whole network are analyzed using TransCAD simulation program. Finally, after performing cluster analysis of index, first and second emergency evacuation roads are determined by judging the characteristics of clusters. The results of this research will be helpful for making a decision to diminish secondary damages when confronting unexpected disasters.