• 가족자원경영과 정책
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• 제21권3호
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• pp.23-42
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• 2017

The purpose of this study was to identify the social networks used by the rural elderly and to analyze the effects of these social networks on the need for life services. The research subjects were 1,000 people aged 65 years and over living in the rural areas of Korea. Among the total 1,000 respondents, 979 elderly who have children were included in this study. The data were analyzed using frequency analysis, descriptive statistics, and multiple regression analysis. The results of this study were as follows. First, the frequency of contact with friends/neighbors was higher than that of children, whereas the social support of children was higher than that of friends/neighbors(excluding physical support). Second, the rate of use of home services and the elderly welfare center was very low. Promotion, a minimum cost burden, convenient transportation (circulation bus operation, etc.), and the provision of visiting services are examples of ways to be using them much more. Third, the elderly who do not live with their children have a higher need for life services. As well unlike the elderly who live with their children, in the case of the elderly who do not live with their children, the necessity for life services was influenced not only by their children but also by the relationship with their friends/neighbors and by home services. This implies that comprehensive social networks are important for the elderly who do not live with their children. Therefore, it is necessary to activate the social support of the community as well as of children and friends/neighbors.

• 인터넷정보학회논문지
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• 제18권4호
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• pp.7-17
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• 2017

Despite various types of online social networks having different topological and functional characteristics, the kinds of online social networks considered in social recommendations are highly restricted. The pervasiveness of social networks has brought scholarly attention to expanding the scope of social recommendations into more diverse and less explored types of online social networks. As a preliminary attempt, this study examined the information-sharing patterns of a new type of online social network - unilateral (directed) network - and assessed the feasibility of the network as a useful information source. Specifically, this study mainly focused on the presence of shared interests in unilateral networks, because the shared information is the inevitable condition for utilizing the networks as a feasible source of personalized recommendations. As the results, we discovered that user pairs with direct and distant links shared significantly more similar information than the other non-connected pairs. Individual users' social properties were also significantly correlated with the degree of their information similarity with social connections. We also found the substitutability of online social networks for the top cohorts anonymously chosen by the collaborative filtering algorithm.

• 한국멀티미디어학회논문지
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• 제14권4호
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• pp.546-553
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• 2011

전 세계적으로 하루 평균 6,000만 통의 이메일이 전송되고 있다. IT 기술의 발전 덕분에 우리는 다양한 방법으로 커뮤니케이션을 할 수 있게 되었고 트위터와 같은 기술은 단순히 우리가 다른 사람들에게 나의 자잘한 일상을 이야기 하는 기회를 주는 것에 그치지 않고 더 큰 일을 하게 하는 강한 잠재력을 지니고 있다. 트위터로 어떤 일을 할 수 있는지 알고 이해한다면 우리의 삶을 타인들과 좀 더 의미 있는 방식으로 교류하고 공유하게 될 것이다. 본 논문에서는 Web과 Social Networks 최근 동향과 디지털 뉴미디어 시대의 미니 블로그와 Twitter 서비스에 대해 살펴본 후, 소셜 미디어 활용전략과 Twiter의 향후 발전방향을 제안하였다.

• 전자공학회논문지CI
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• 제48권3호
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• pp.18-26
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• 2011

최근 급성장하고 있는 소셜 네트워크 서비스는 인적 네트워크를 반영한 온라인 서비스로서 선거 유세, 기업 홍보 마케팅, 교육적 정보 공유, 의학적 지식 및 의견 교환 등 다양한 목적으로 사용되고 있다. 이 서비스는 공동의 관심사를 가진 사람들이 모여 자유롭게 정보와 의견을 교환하면서 친분관계를 형성하도록 하고, 자신의 프로파일과 친분관계에 있는 사람들을 공개함으로써 다른 사람의 인맥을 활용하여 자신의 관계를 확장시켜 나갈 수 있도록 한다. 그러나 정보의 개방과 공유를 기반으로 하는 소셜 네트워크 서비스는 프라이버시 침해나 피싱과 같은 많은 보안상의 문제를 야기 시킨다. 본 논문에서는 키링을 이용하여 소셜 네트워크에서 소규모 그룹의 통신을 보호하기 위한 키 관리 기법 및 프로토콜을 제시하였다.

• 한국정보과학회논문지:컴퓨팅의 실제 및 레터
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• 제16권3호
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• pp.361-365
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• 2010

소셜 네트워크는 관심사가 유사한 사람을 찾거나 정보를 교환하는 주요한 수단으로 최근 각광받고 있다. 특히 페이스북(Facebook) 이나 싸이월드 등과 같이 인터넷상에서 제공되던 소셜 네트워크 서비스는 이제 휴대폰 영역으로 확장되고 있다. 휴대폰은 개인이 향상 소유하고 다니기 때문에 개인정보의 취득이 쉬우며, 센서 기술의 발달로 다양한 종류의 데이터를 함께 수집할 수 있다. 따라서 이를 모바일 소셜 네트워크 서비스에 활용하면 기존의 인터넷기반 소셜 네트워크 서비스와의 차별화를 이룰 수 있다. 이를 위해 본 논문에서는 확률추론 모델인 베이지안 네트워크를 이용하여 사용자와 주변 사람들간의 친밀도나 관계 등의 모바일 소셜 컨텍스투를 추출하는 방법을 제안한다. 이는 모바일 소셜 네트워크 서비스에 중요한 정보로 활용 가능하며, 본 논문에서는 실제 수집한 데이터를 기반으로 그 가능성을 검증하였다.

• 한국IT서비스학회지
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• 제19권1호
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• pp.1-16
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• 2020

Suncheon City Regeneration Project is known as the concept of cultural residents. Through the previous projects, the residents' capabilities have been improved, and the projects have been carried out according to their strategies. For this reason, participants in urban regeneration projects are important. The purpose of this study is to actually identify the 'rescue center' and 'direct relationship' with the analysis utilizing the characteristics of social networks NetMiner solution of the participants, who led the project, Suncheon. Surveys and interviews were conducted for participants, and the characteristics of social networks were analyzed in time series to quantify and visualize the results. As a result of the analysis, social networks were changed among the participants before and after the urban regeneration project. Initially, loose networks were denser over time, and initially networks formed only around participants were expanded over time. Network analysis has revealed that the system is strengthening with urban regeneration projects in the form of public and public-private cooperation. This highlights the need for a city-centered urban regeneration strategy centered on people and shows that a dense network of participants can be a success factor.

• 한국콘텐츠학회논문지
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• 제17권5호
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• pp.479-490
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• 2017

본 연구는 주관적 건강수준에 따른 독거노인의 사회적 관계망이 의료기관 이용에 미치는 영향을 파악하고, 노인복지서비스 참여의 조절효과를 확인하고자 하였다. 이를 위해 한국보건사회연구원의 노인실태조사자료(2014) 중 독거노인 2,344명을 연구대상으로 선정하였고, 기술통계, 카이제곱 검정 및 포아송 회귀분석을 실시하였다. 연구결과, 독거노인들의 사회적 관계망 확대 및 노인복지서비스 참여는 주관적 건강수준이 나쁜 독거노인들의 의료기관 이용에 영향을 주는 것으로 확인되었다. 주관적 건강수준이 나쁜 독거노인들의 경우, 가족과의 왕래 및 평생교육 참여로 인해 의료기관 이용횟수가 감소하였으며, 이웃과의 왕래가 증가하거나 노인일자리사업을 신청할 경우 의료기관 이용이 증가하는 결과를 보였다. 또한 노인복지서비스 참여의 조절효과를 확인한 결과, 친목시설 및 단체에 참여한 독거노인들의 사회적 관계망이 확대 될수록 의료기관 이용횟수가 증가하는 것을 확인할 수 있었다. 본 연구는 이러한 결과에 근거하여 독거노인들의 사회적 관계망을 대체할 수 있는 노인복지서비스 확대를 제시하고, 의료이용 실태 파악을 통하여 실질적인 건강유지증진 및 예방을 지원할 수 있는 정책적 방향성을 모색했다는 점에서 의의가 있겠다.

• 한국IT서비스학회지
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• 제13권2호
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• pp.173-184
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• 2014

As social network services has become one of the most successful web-based business, recommendation in social network sites that assist people to choose various products and services is also widely adopted. Collaborative Filtering is one of the most widely adopted recommendation approaches, but recommendation technique that use explicit or implicit social network information from social networks has become proposed in recent research works. In this paper, we reviewed and compared research works about recommendation using social network analysis and collaborative filtering in social network sites. As the results of the analysis, we suggested the trends and implications for future research of recommendation in SNSs. It is expected that graph-based analysis on the semantic social network and systematic comparative analysis on the performances of social filtering and collaborative filtering are required.

• 보건의료산업학회지
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• 제7권3호
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• pp.177-192
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• 2013

The present study investigated the effect of area-specific social networks on urban workers life satisfaction. For this, 356 adults over age 20 were interviewed from June 17th 2013 to June 29th 2013. The findings are as follows: First, the closeness of family network index demonstrates that participants with higher affective support have higher life satisfaction. In addition, stronger extended family network brings more life satisfaction and so does a bigger friendship network. Secondly, the extended family network explains 17.6% of the variance in social networks follows by family network, other network, and friendship network, respectively. The closeness variable of social networks yields statistical significance on all categories of networks. The affective support level in the closeness variable of social networks shows differences as well; family network positively associates with life satisfaction. The purposes of this research are to investigate the actual conditions of urban workers' life satisfaction and the influence of family, extended family, friendship, and other variables on life satisfaction. If social networks have an influence on life satisfaction, to find the domain of social networks that holds the most influences on life satisfaction is an important ground in the process of implementing regional welfare.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권1호
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• pp.421-433
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• 2015

Recently, there have been fast-growing social network services based on the Internet environment and web technology development, the prevalence of smartphones, etc. Social networks also allow the users to convey the information and news so that they have a great influence on the public opinion formed by social interaction among users as well as the spread of information. On the other hand, these social networks also serve as perfect environments for rampant malware. Malware is rapidly being spread because relationships are formed on trust among the users. In this paper, an effective patch strategy is proposed to deal with malicious worms based on social networks. A graph is formed to analyze the structure of a social network, and subgroups are formed in the graph for the distributed patch strategy. The weighted directions and activities between the nodes are taken into account to select reliable key nodes from the generated subgroups, and the Incremental PageRanking algorithm reflecting dynamic social network features (addition/deletion of users and links) is used for deriving the high influential key nodes. With the patch based on the derived key nodes, the proposed method can prevent worms from spreading over social networks.