• Asia pacific journal of information systems
• /
• 제11권3호
• /
• pp.91-104
• /
• 2001

Like other communication networks, the Internet is establishing and reinforcing connections between market participants. By adapting to these networks, market participants are able to obtain the power of network to create new benefits in on-line markets. In this paper, we develop three stage non-cooperative game models to analyze the community related business market in electronic commerce where network externalities are present. It is found that, regardless of its market share, individual firm in a market tends to favor a community network. The analysis also shows there exist some possibilities that these community networks can trap the market in an inferior state when better alternatives are available to yield greater social welfare.

• Journal of Evidence-Based Herbal Medicine
• /
• 제1권2호
• /
• pp.1-6
• /
• 2008

The internet is closely related to the lives of modern people in the 21st Century. Exchanging information with others over the internet in any place through is possible nowadays and such exchanging information has been developed at rapid speed also in the areas of medical care. The internet is an important and rapidly-evolving source of health-related information, and many patients with atopy dermatitis attempt to find information from the internet. This study was performed to investigate the current information available in atopy dermatitis on the internet in Korea. We chose three portal sites and two network communities to analyze the information in which the topic of 'atopy' could be found. Among the 2,024 web sites and 5,613 network communities, 98.2% of the web sites and 71.7% of the communities were related products or service advertisements, and some of them provided incorrect of exaggerated information. There were only 42 web sites and 75 available communities with genuine information, and most of these also presented unattested treatment methods, including alternative therapies. It is quite understandable that patients with atopy dermatitis want to seek information related to their disease and the internet has the potential to be a useful source of information. However, there are no regulations to control the accuracy and quality of information on the internet. We should take an active role in identifying the accuracy and evaluating the quality.

• Journal of Information Science Theory and Practice
• /
• 제11권3호
• /
• pp.29-42
• /
• 2023

This study explored issues related to the library in the COVID-19 era in YouTube videos in Korea. This study performed social network analysis and topic modeling analysis by collecting 479 YouTube videos, 20,545 words, and 8,379 channels related to COVID-19 and the library from 2019 to 2020. The study results confirmed that YouTube, a social media platform, was used as an important medium to connect users and physical libraries and provide/promote online library services. In the study, major topics and keywords such as quarantine, vlog, and library identity during the COVID-19 pandemic, library services and functions, and introductions and user guides of libraries were derived. Additionally, it was identified that videos about COVID-19 and the library are being produced by various actors (news and media channels, libraries, government agencies, librarians, and individual users). However, the study also identified that the actor network is fragmented through the channel network, showing a low density or weak linkage, and that the centrality of the library in the actor network is weak.

• 유통과학연구
• /
• 제22권3호
• /
• pp.105-112
• /
• 2024

Purpose: This study analyzed the relationship between corporate capacity and management performance in the Korean distribution industry during the COVID-19 pandemic. Research design, data and methodology: The data for this study used the 2021 KOTRA GCL Test Data, and multiple regression analysis was performed using SPSS 26. As corporate competency, human capital and related capital of intellectual capital theory were utilized, and the global network level of social network theory was also utilized. As an additional analysis, corporate characteristics factors were used. Results: First, the level of global mindset of human capital acted as a positive factor in management performance, and the level of professional manpower did not achieve significant results. Second, related capital acted as a positive factor in corporate performance. Third, from the perspective of social network theory, the global network level of companies acted as a positive factor in management performance. Finally, the relationship between corporate characteristics and management performance was marginally significant. Conclusions: In order to improve the business performance of a company in a market shock such as the COVID-19 pandemic, it is required to strengthen the level of network construction with customers and increase the level of intellectual capital that a company has.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제6권11호
• /
• pp.2764-2783
• /
• 2012

Network virtualization supports future Internet environments and cloud computing. Virtualization can mitigate many hardware restrictions and provide variable network topologies to support variable cloud services. Owing to several advantages such as low cost, high flexibility, and better manageability, virtualization has been widely adopted for use in network virtualization platforms. Among the many issues related to cloud computing, to achieve a suitable cloud service quality we specifically focus on network and performance isolation schemes, which ensure the integrity and QoS of each virtual cloud network. In this study, we suggest a virtual network platform that uses Xen-based virtualization, and implement multiple virtualized networks to provide variable cloud services on a physical network. In addition, we describe the isolation of virtual networks by assigning a different virtualized network ID (VLAN ID) to each network to ensure the integrity of the service contents. We also provide a method for efficiently isolating the performance of each virtual network in terms of network bandwidth. Our performance isolation method supports multiple virtual networks with different levels of service quality.

• 정보처리학회논문지:소프트웨어 및 데이터공학
• /
• 제3권1호
• /
• pp.31-36
• /
• 2014

트위터와 페이스북 등의 SNS(Social Network Service)는 일반 대중의 관심사나 트렌드 등의 이슈를 탐지하기 좋은 지식원이다. 본 논문에서는 검색 질의어에 관련된 이슈나 화제를 질의어에 대한 연관 어휘로 보고, 이를 트위터에서 추출하기 위한 방법을 제안한다. 제안하는 방법에서는 질의어와 연관성이 높은 단어는 질의어와 가까운 위치에서 자주 발생한다고 가정하고, 단어 간 거리에 반비례하고 공기 빈도에 비례하는 단어 간 인접도의 합으로 단어간 연관도를 구한다. 구해진 연관도 값이 임계치를 넘는 어휘를 연관 어휘로 보고 네트워크의 형태로 관련 이슈를 제시한다. 제안한 방법에서는 네트워크의 특성을 분석하여 복합어를 손쉽게 탐지할 수 있다.

• Asia pacific journal of information systems
• /
• 제29권3호
• /
• pp.489-502
• /
• 2019

The WeChat mini program is an application embedded in WeChat that users can use without downloading and installing. After it was officially released in 2017, many travel enterprises have launched their own mini programs on the WeChat platform. This study applies affordance theory to investigate the WeChat mini program's role in tourism activities through social network analysis using the R programming language. The authors searched the topic of "how do you perceive the travel-related WeChat mini program" and then crawled the 200 comments found; 180 comments were analyzed after data cleansing. The results show that travel-related WeChat mini programs play a very important role in Chinese social network tourism activities. This paper found that WeChat played a more active role in various tourism-related interactions with Chinese social networks. Moreover, the results show how affordance theory is applied to the use of WeChat mini programs.

• 한국통신학회논문지
• /
• 제37권8C호
• /
• pp.703-710
• /
• 2012

2011년 12월 2일 일부개정된 저작권법에는 저작물 이용과정에서의 일시적 복제에 관한 조항이 신설되었다. 최근 In-network Caching 기술에 대한 연구가 Content-Centric Networking 등 활발히 이루어지고 있는 가운데 저작물의 일시적 저장, 즉 일시적 복제가 사용자의 단말에서 뿐 아니라 네트워크 장비인 라우터에서도 발생할 수 있으므로 이에 대한 법적, 제도적 검토가 이루어져야 할 필요성이 있다. 이에 본 논문에서는 최근 개정된 저작권법 및 한미FTA 협정문의 관련 조항을 중심으로 저작물의 일시적 복제에 대해 살펴보고, In-network Caching이 실현가능하려면 어떠한 제도가 뒷받침되어야 하는지 고찰하였다.

• 무역학회지
• /
• 제44권6호
• /
• pp.55-67
• /
• 2019

This study investigate the concept and type of Korea's trade governance by theories related to network governance. Korea's domestic trade policy-building system a 'network trade governance' utilizing Minister for Trade as a network administrative organization. This governance has four major rade stakeholders: G(Government), I(Industry), A(Academia), and C(Civil groups). Korea has five types of committees for internal consultation between domestic stakeholders, all G·I·A·C groups. Korea's trade governance can be if it fixes its administrative redundancy, communication formality, stakeholder exclusiveness. This topic calls for further research such as social network analysis as well as international comparison analysis.

• 한국지진공학회논문집
• /
• 제10권3호
• /
• pp.135-147
• /
• 2006

본 연구에서는 도로교의 지진피해평가체계를 구축하기 위해 필요한 정보항목들을 정의하고 우리나라 실정에 맞는 데이터 베이스 구축방법을 제시하였다. 도로교 지진피해평가를 위한 정보요소는 크게 구조물 관련 정보와 위치관련 정보로 구분하였다. 구조물 관련정보는 도로망에 위치한 교량의 지진피해를 예측하는데 필요한 도로교의 취약도 곡선 정보항목으로 구성하였다. 위치관련 정보항목인 도로망의 데이터구조는 상세한 교차로 모델링이 가능하도록 기존의 GIS 데이터구조를 보다 세분화하여 정의하였다. 고속도로망에 위치한 110개의 교량을 대상으로 시범 시스템을 개발하였으며, 제시된 데이터베이스 구축 방법은 도로망의 신속한 피해복구를 위한 의사결정 지원체계 구축에 효과적으로 활용이 가능함을 보였다.