• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.5
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• pp.1168-1173
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• 2013

This paper proposes a new visualization method based on cloud technique which uses internal relationship of user correlation and external relation of social network to visualize user relationship hierarchy. The visualization method of this paper can well represent user-focused relationship hierarchy on social networks by a correlation matrix. The importance of a access node reflects into user relationship hierarchy by exploiting external relation of social network. Users of the method can well understand user relationships on account of representing user relationship hierarchy from social networks. In addition, the method use hadoop and hive for distribution storing and parallel processing which the result of calculation visualizes hierarchy graph using D3.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.771-774
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• 2012

세계적으로 온라인 평판 분석 서비스의 개발 및 SNS 이슈 분석과 영향도 평가 등의 서비스 이용추세가 증가하고 있다. 현재 SNS나 소셜미디어등 온라인을 통해 고객들의 서비스에 대한 정성적인 평가 및 요구사항이 실시간으로 표현되고 있으며, 서비스에 대한 부정적인 여론이 확산되기 전에 능동적으로 대응할 수 있는 시스템의 필요성이 기업들에게 시급히 요구되고 있다. 이러한 시스템 개발을 위해서 선행되어야 할 기술개발 요건으로 B2C 산업의 특성에 기반한 다양한 분석 주제를 설정하고, 이에 맞는 다양한 동일 산업군에 대한 시스템 적용을 위한 분류 표준화가 필수이다. 본 연구에서는 이를 수행하기 위해서 대표 산업군을 선정하여 기존 업무 분류 체계를 기반으로 한 온라인상의 고객 피드백 분류 및 표준화 수립에 대한 방법을 제안한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.21 no.1
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• pp.53-63
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• 2011

An SNS(Social Network Service) enables people to form a social network on online as in the real world. With the rising popularity of the service, side effects of SNSs were issued. Therefore we propose and implement a policy-based privacy protection module and access control policy language for ensuring the right of control of personal information and sharing data among SNSs. The policy language for protecting privacy is based on an attribute-based access control model which grants an access to personal information based on a user's attributes. The policy language and the privacy protection module proposed to give the right of control of personal information to the owner, they can be adopted to other application domains in which privacy protection is needed as well as secure sharing data among SNSs.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.1
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• pp.97-107
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• 2013

The recent increase in smartphone usage has ignited the development of new applications which have changed the way of living in this internet era in the world. Almost all users which have smartphone have used many kinds of applications for lots of part. Especially, Social Network Service is the most popular part for smartphone users. The greater part of smartphone users take messenger service for smartphone. This kinds of applications provide to manage as deactivation of user or change of device. When users take to manage their information, their information would be deleted securely. If secure deletion didn't work correctly and released, their personal information can be easily abused to by others through various means such as internet phishing. In this paper, we analysis that the messenger application's management function keeps on the Personal Information Protection Act and suggest to prevent legally and technically for user's personal information and privacy.

• Journal of Information Technology Services
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• v.10 no.4
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• pp.1-19
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• 2011

Following the growth of e-Business, there has been a recent increase of interest in promoting Social Business (s-Business) based on Social Network Service(SNS). As the introduction of the Internet brought about the increasing number of its users followed by the growing market of e-Commerce, online games, and e-Learning, the increasing number of SNS users has opened the new markets combining the existing industrial fields with SNS, and it developed into a revenue model beyond the mere sharing of information. Despite such industrial and social environments, understanding of new social business technology from the aspect of business has been insufficient, and the empirical study on participation in the social business has been scant as well. Thus, the main purpose of this study is to investigate the s-Business in detail and to study the factors giving influence to the users' participation in s-Business. This study proposes six variables(Self-Empowerment, Job Relevance, Formation of Social Capital, Relative Advantage, Shared Value, Relationship Specified Investment) and the moderating effects of Psychological Contract as influential factors closely related with s-Business. A total of 362 data from a survey were analyzed by using Structural Equation Modeling(SEM). Result showed that all factors with the exception of Job Relevance have meaningful influence on the intention to participate in s-Business. The implication of the findings suggests to compliment limitations of the existing researches, and to prepare the theoretical foundation for promoting s-Business participation in addition to further suggesting directionality from the view point of the users of the social business-relevant studies.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.9
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• pp.603-614
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• 2013

The popularity of mobile devices provides their users with a circumstance that services and information can be accessed wherever and whenever users need. Accordingly, various studies have been proposed personalized methods to improve accessibility of mobile users to information. However, since these personalized methods require users' private information, they gives rise to problems on security. An efficient way to resolve security problems is to estimate user information by using their online and offline behavior. In this paper, for this purpose, it is proposed a novel user information identification system that identifies users' personal and social information by using both his/her behavior on social network services and proximity patterns obtained from GPS data. In the proposed system, personal information of a user like age, gender, and so on is estimated by analyzing SNS texts and POI (Point of Interest) patterns, while social information between a pair of users like family and friend is predicted with proximity patterns between the users. Each identification module is efficiently designed to handle the characteristics of user data like much noise in SNS texts and missing signals in GPS data. In experiments to evaluate the proposed system, our system shows its superiority against ordinary identification methods. This result means that the proposed system can efficiently reflect the characteristics of user data.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.155-156
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• 2015

대중화된 소셜 네트워크 환경에서 사용자가 제작한 콘텐츠를 빠르고 간편하게 공유할 수 있도록 하는 모바일 App을 개발하였다. 기존 사용자 영상 콘텐츠 제작 환경에서는 필요 이상의 소음과 잡음이 혼재하여 영상에서 풍기는 이미지의 감동을 저해하고 있다. 이러한 주의의 소음과 잡음으로부터 영상을 보호하도록 배경음악을 영상과 함께 재생하여 영상의 감동과 느낌을 사용자에게 전달하기 위한 App이다. 또한 소셜 네트워크 환경에 간편하게 업로드 할 수 있도록 페이스북을 통해 다른 사용자와 빠른 공유를 할 수 있다.

• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.3
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• pp.157-169
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• 2012

As of 2006. 3. the twitter offered in the USA has been one of the propaganda instrument used with ads and politics functioning speedy information diffusion on SNS communicated with others through 140 letters of short messages. and while twitter is using propaganda instrument, it keeps on trying to verify how it has an effect on. So, on the paper, I suggest new simulation model of information diffusion based on probability being able to predict the range of proliferation after it analyze the existing influence and the diffusion force on verification methods. It designed algorithm of verification and algorithm of prediction to use twitter's Open API with Python basement. It proved effectiveness on the model through the analysis to operate the twitter of practical local autonomous entity.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.197-198
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• 2019

본 연구는 청소년들의 SNS 이용동기와 이용실태를 알아보고자 하였다. 연구를 위해 부산에 살고 있는 고등학생들을 대상으로 조사를 실시하였으며, 사회적 동기, 유희적 동기, 기능적 동기, 심리적 동기, 정보공유, 탈출욕구, 교우실현, 전문적 혜택 등에 대한 설문문항을 토대로 설문조사를 진행하였다. 설문 결과, 대부분의 학생들이 페이스북을 사용하고 있었으며, 그 다음으로 인스타그램을 많이 이용하는 것으로 나타났다. 그리고 청소년들은 기능적 동기와 유희적 동기와 교유관계 유지를 위한 동기 때문에 SNS를 이용하고 있는 것으로 나타났다. 현재 청소년들이 SNS를 활발히 활용하고 있고 왜 이용하고 있는지에 대한 동기를 파악하여 청소년들의 심리상태를 점검해 볼 수 있다는 차원에서 연구의 의의가 있다고 볼 수 있다.

• International Commerce and Information Review
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• v.15 no.3
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• pp.111-133
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• 2013

The purpose of this study is to evaluate the effect that the utilization motivation of SNS (Social Network Service) marketing affects on the export performance of medium small sized exporting enterprises (MSEE) directly and indirectly. This study is to investigate the effects of the export marketing environment of MSEE onto the motivation of SNS application and then it proposes a model which evaluates the performance of SNS marketing. In this study, for data collection and analysis questionnaire, survey was conducted for MSEE participated in trade exhibitions sponsored by COEX and used TradeSOS consulting services of Korea International Trade Association. The results showed that MSEE utilized SNS for cost reduction.