• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.2
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• pp.75-82
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• 2017

In this paper, we consider social network analysis that focuses on community detection. Social networks embed community structure characteristics, i.e., a society can be partitioned into many social groups of individuals, with dense intra-group connections and much sparser inter-group connections. Exploring the community structure allows predicting as well as understanding individual's behaviors and interactions between people. In this paper, based on the interaction information extracted from a real-life Bluetooth contacts, we aim to reveal the social groups in a society of mobile carriers. Focusing on estimating the closeness of relationships between network entities through different similarity measurement methods, we introduce the clustering scheme to determine the underlying social structure. To evaluate our community detection method, we present the evaluation mechanism based on the basic properties of friendship.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.210-212
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• 2018

According to the OECD (Organization for Economic Cooperation and Development) report, the suicide rate of senior citizens has been high since 2009 due to lower social participation compared to their youth and depression. As entering the Information Era, it became easier to form and expand relationships due to the influence of online community sites. However, it is difficult to use these community sites for the elderly because they lack accessiblity for seniors. In this paper, we describe the content of community mobile apps for senior citizens' social solitude and participation in information society. We also, analyze why community sites are difficult to use, and suggest community mobile app interfaces and content considering physical and cognitive conditions, focusing on user scenarios based on PACMAD, one of the user assessment models. This will serve as the basis for encouraging the elderly to participate in the information society.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.41 no.3
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• pp.267-276
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• 2021

Community infrastructure contains national facilities that directly affect the quality of life of citizens. They need to be evenly supplied to every one of citizens. However, the services provided by infrastructure differ by region. In this paper, we propose a method to analyze the current status of the supply of community infrastructure consisting of accessibility and capacity. Accessibility can be evaluated by the time between residence blocks and facilities, which is an indicator of the convenience of citizens. Capacity is assessed by the area supplied for the local population, to assess whether facilities are being sufficiently supplied to the region. The method presented in this paper was applied on a case region to test the applicability. The analysis method of the supply status of community infrastructure in this study is considered to be used as a basic framework for regional supply plan of community infrastructure and urban planning.

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.189.1-189
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.189.2-189
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.196.4-196
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2005.05a
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• pp.199.1-199
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2004.05a
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• pp.21-23
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• 2004

• Proceedings of the Korean Information Science Society Conference
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• 2008.06a
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• pp.51-52
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• 2008

• Proceedings of the Microbiological Society of Korea Conference
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• 2008.05a
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• pp.47-48
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• 2008