• Electronics and Telecommunications Trends
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• v.19 no.1 s.85
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• pp.1-8
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• 2004

무선랜 서비스 지역이 점차 확대되면서, 노트북을 이용하여 언제 어디서나 인터넷을 사용하고자 하는 사용자들의 요구도 차츰 증가하고 있다. 이러한 변화를 수용하기 위해 기차, 버스, 배 등 이동수단에서 인터넷 서비스를 제공할 수 있는 기술이 주목 받고 있다. 이러한 기술 중 하나가 IP 네트워크 이동성 기술인 NEMO(Network Mobility)이다. NEMO는 네트워크 내의 모든 노드들이 이동을 인식하지 않고 인터넷 연결 서비스를 받을 수 있도록 이동라우터에서 서비스해 주는 기술이며, 최근 IETF에서 IPv6를 기반으로 표준화가 시작되었다. NEMO 망은 다른 특성의 망을 거치지 않고 인터넷 망에 직접 연결하여 이동성 서비스를 제공한다. 따라서 다양한 이동 수단뿐 아니라 텔레매틱스, PAN, Ad-hoc 네트워크 등에도 이러한 기술이 적용될 수 있을 것으로 생각된다. 본 고에서는 NEMO 서비스를 소개하고 이 서비스를 위해 필요한 기술 개념과 기술 동향 및 향후 연구분야에 대해 논의하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.532-535
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• 2018

네트워크 커뮤니티 (NC)는 이종의 연결인 물리적 네트워크(PN)와 가상 네트워크(VN)를 망라하여 네트워크 내에서 나의 위치를 파악하고자 하는 분석방법으로서, 사용자가 NC 내에서 다른 노드에 얼마나 영향력이 있는지를 분석할 수 있다. 본 논문에는 NC 모델링 기법을 이용하여 실제 세계를 대변하는 PN과 VN을 방향성 있게 연결하여 '나'의 영향력이 실제로 변화하는 실험적 모델을 제시하였으며, 이 영향력 모델의 수치적 평가를 실험을 통해 제시하였다.

• Korean Journal of Environment and Ecology
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• v.25 no.3
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• pp.412-420
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• 2011

This study was conducted to quantitatively analyze the temporal change of green space network at multi-scales from 1975 to 2006 with the application of graph theory in Seoul, Korea. Remarkable change of connectivity was detected in green space networks at the scale ranging from 1,000 ~ 1,600 m during 30 years. Green spaces and their networks have been restoring after 1990 since forest areas had been fragmented in 1975. In 2006, we identified the important core habitat areas that can sustain diverse wildlife species and stepping stones composed of small patches that can link these core habitat areas. Green spaces showed high correlation with the relative importance value of green space connectivity. So, this study could graphically represent green space networks of Seoul City. Green spaces of core areas distributed at the northern and southern boundary, and those of stepping stones possessing the high value of betweenness centrality consisted at the middle, eastern and western boundary. These results indicate that green space network can be graphically and quantitatively explained by degree centrality, betweenness centrality and relative importance value of connectivity with the application of graph theory.

• 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.

• The KIPS Transactions:PartC
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• v.13C no.7 s.110
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• pp.923-932
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• 2006

For the successful promotion about the NGN (Next Generation Network), centralized network control and management technology is required to guarantee QoS and Traffic Engineering. This paper describes SNMP. Web Services and Network Open Interface based connection management scheme which can be used in centralized server based network in which the control plane is separated from transport plane. We also constructed platforms about each of these connection management schemes and performed comparing and analyzing the performance of connection setup delays.

• Journal of Information Management
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• v.43 no.4
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• pp.31-48
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• 2012

Social network analysis was performed on 545 job descriptions in 32 university libraries in Seoul, and drew the job distribution and their relations. Furthermore, for finding the differences according to scale of libraries, this study performed secondary analysis by dividing them two groups. Results show that large scale library show lower density and loose connectivity than small scale library. And while jobs of small scale library were clustered 3 groups, large scale university cluster 4 groups containing 1 technical job and 3 diverse user services. And the jobs that has high specificity, such as catalog or classification, shows high degree centrality in the case of small scale library. Whereas in large scale library they show lower degree centrality, so it can be said that these jobs were performed somewhat independently in large scale libraries.

• Proceedings of the Korean Society of Computer Information Conference
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• 2014.01a
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• pp.161-163
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• 2014

본 논문에서는 화면들을 이동할 때 이용하는 경로인 메뉴 네비게이션을 설계하기 위하여 사회연결망분석 방법론을 이용하여 정보시스템의 웹 화면메뉴에 적용해 보았다. 사회연결망분석의 대표적인 지수인 연결중심성과 매개중심성 값을 이용하여 효과적으로 다른 웹 화면메뉴들로 이동이 가능하도록 하였으며, 그룹간의 영향력 높은 화면들을 도출하여 이의 활용에 대해 고찰하였다. 웹 화면의 정보이동을 효율적으로 가능하게 하는 메뉴 네비게이션 설계에 대한 연구를 통해 정보시스템을 전략적으로 활용 가능하게 함으로써 정보시스템의 효율을 증대 시킬 수 있을 것으로 기대한다.

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.259-260
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• 2019

이 연구는 텍스트마이닝 및 사회연결망 분석을 통하여 지금까지 축적된 연구주제의 핵심어와 네트워크 지식구조를 확인하여 무용경영 연구의 흐름과 동향을 분석하는데 목적이 있다. 무용경영 연구동향에 관한 텍스트마이닝 분석 결과, 전반적으로 무용경영 연구에서 가장 높은 빈도를 나타낸 특정 토픽으로는 'Performing arts', 'Entrepreneurship', 'Dance', 'Audience development', 'Dance management' 등이 도출되었다. 사회연결망 분석을 실시한 결과, 'Entrepreneurship', 'Dance Marketing', 'Marketing'에서 노드간의 연결성이 높은 것으로 나타났다. 또한 국외에서는 꾸준히 관객개발(audience development)과 공연마케팅(performing arts marketing)이 주요 쟁점으로 다루어져 왔다. 이와 같은 연구동향 및 지식구조 분석을 토대로 이 연구는 보다 확장된 무용경영 연구의 관점을 제안하였다.

• Journal of Korea Entertainment Industry Association
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• v.14 no.4
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• pp.169-186
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• 2020

This study selected 127 powerful Korean film producers, directors, and actors whose stable audience drawing power has been proven over the past seven years from 2013 to 2019, and viewed their network through social network analysis(SNA) to explain their power structure. It also explained the changes compared to the results of previous studies conducted on box office hits from 1998 to 2012. The producers who showed the highest audience drawing power over the past seven years were KANG Hae-jung, JANG Won-seok, LEE Eugene, HAN Jae-duk. BONG Joon-ho, KIM Yong-hwa, and RYOO Seung-wan as directors and SONG Kang-ho, HA Jung-woo, and HWANG Jung-min as actors were confirmed to exhibit the most stable audience drawing power. Meanwhile, the network formed by the 127 leading producers, filmmakers, and actors was analyzed based on closeness/ degree/eigenvector/betwenness centrality, and the result discovered a strong network involving JANG Won-seok, HAN Jae-duk, CHO Jin-woong, Don LEE, and HWANG Jung-min. This study is meaningful in that it included producers, the position which has never been discussed in previous local studies to analyze the network influencing star casting, and selected accurate box office hits by checking whether the concerned films actually reached break-even point rather than simply relying on the number of audiences or total revenue they garnered. Nonetheless, it left a hole to be filled in that it did not include the role of the management companies in the network. Therefore, a relevant follow-up discussion would be needed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.2
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• pp.335-344
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• 2020

This study compared the structures and changes of help network between pre-service secondary teachers and pre-journalists who participated in the class related to network analysis to seek ways to activate a professional learning community. For this study, we used Exponential Random Graph Models (ERGM) based on ties as being interdependent and not conventional regression models requiring assumptions of independence between observations. The analysis subjects were 43 pre-service secondary teachers and 29 pre-journalists who responded both early and late in the help network survey. The main results were as follows. First, full models with network structural terms were better than simple models with no structural terms. Second, the effect of transitivity was not statistically significant in the pre-service secondary teachers' network. However, it was statistically significant in the pre-journalists' network. Third, there were effects of reciprocity, indegree popularity, and outdegree activity in the early help network of pre-service secondary teachers. On the contrary, there were only the positive effects of reciprocity and the negative effect of outdegree activity in the late network. Finally, this study demonstrated the possibility in educational fields' application of network structural effects and provided limitations and directions for future research.