• Human Ecology Research
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• 제51권5호
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• pp.473-481
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• 2013

The purpose of this study was to investigate the moderating effects of a size of the friendship network and quality of friendship on the associations between mutual antipathy and maladjustment. The subjects were 678 fifth- and sixth-grade primary school children who were recruited from a public school in Bucheon City. The Peer Nomination Inventory was used to assess mutual antipathy, peer victimization, social withdrawal, aggression, and the friendship network. The children were given a classroom roster and asked to nominate up to three classmates who fit each description. Additionally, the children reported the quality of their friendships using the Friendship Quality Scale. Each child was asked to indicate his or her one best friend and rate how accurately a sentence describe done of their best friends on the scale. The results revealed that the friendship network and friendship quality significantly moderated the relationships between mutual antipathy and social withdrawal, and peer victimization. The magnitude of the association between mutual antipathy and social withdrawal was not significant for large friendship networks and high quality friendships. Although mutual antipathy was significantly associated with peer victimization, the association was stronger at lower levels than at higher levels of the friendship network and quality. However, there was no moderating effect of the friendship network and quality on the association between mutual antipathy and aggression. A large friendship network and high quality friendship could be protective factors among those who have mutual antipathy in peer groups.

• 대한임베디드공학회논문지
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• 제7권4호
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• pp.181-186
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• 2012

Obesity is one of the biggest problem in modern society. Smartphone could be a good tool to handle this problem. In this paper, we propose a new smartphone app to recommend diet, to offer a physical practice by motion games. Our Android smartphone application encourages friends to join group fitness programs. It interfaces with social network services and smart-TV.

• 가정과삶의질연구
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• 제11권1호
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• pp.80-92
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• 1993

The purpose of this study is to provide information of the structure of the social support network and life interchange with the social support network which influence the life satisfaction in the rural elderly. The sample of this study was selected from the elderly living in Korea rural areas. 350 out of 363 respondents were finally selected as datum sources. The methodological instrument was the questionnaire. The major findings of this study can be summarized as follows: First most of rural elderly had the relationship all kinds of social support network-family kin neighbors & friend. And the family was the primary source of support network. The com-mon size of the social support network was 1-3 persons. Second the frequency of the contact with the family the neighbors & the friends were almost daily and they were interacting in a near distance. The interchange with the social support network was high. Life satisfaction of the rural elderly was low. Third the interchange with the family and the kin the emotional interchange had the effect upon life satisfaction. Also the economic service support was significant in the kin and the neighbors.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권5호
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• pp.2082-2102
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• 2018

In recent years, social network related applications such as WeChat, Facebook, Twitter and so on, have attracted hundreds of millions of people to share their experience, plan or organize, and attend social events with friends. In these operations, plenty of valuable information is accumulated, which makes an innovative approach to explore users' preference and overcome challenges in traditional recommender systems. Based on the study of the existing social network recommendation methods, we find there is an abundant information that can be incorporated into probability matrix factorization (PMF) model to handle challenges such as data sparsity in many recommender systems. Therefore, the research put forward a unified social network recommendation framework that combine tags, trust between users, ratings with PMF. The uniformed method is based on three existing recommendation models (SoRecUser, SoRecItem and SoRec), and the complexity analysis indicates that our approach has good effectiveness and can be applied to large-scale datasets. Furthermore, experimental results on publicly available Last.fm dataset show that our method outperforms the existing state-of-art social network recommendation approaches, measured by MAE and MRSE in different data sparse conditions.

• Human Ecology Research
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• 제56권2호
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• pp.123-131
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• 2018

This study investigated associations between attachment and friendship. This study also examined the mediating effects of empathy on the association between two variables. Participants consisted of $4^{th}$ to $6^{th}$ grade elementary school children including 173 boys and 141 girls. Two elementary schools were located in Seoul and Bucheon. Children participated in a peer nomination interview. They nominated their three most liked peers. Children's responses to the best friend of the peer nomination identified the children's best friends. A Friendship Quality Scale measured children's positive friendship quality and friendship satisfaction. Children completed the Inventory of the Parent and Peer Attachment Scale that assessed maternal and paternal attachment. In addition, they completed a children's version of the Empathy Quotient that measured empathy. Pearson's correlation and Structural Equation Modeling were used to analyse the data. The results indicated that attachment had a direct influence on friendship network. Children who had the high levels of attachment security had large friendship network. However, attachment did not have a significant effect on friendship quality. Moreover, empathy had mediating effects on the association between attachment and friendship quality as well as the friendship network. The results of this research highlight the importance of attachment and empathy on children's friendship.

• 한국정보시스템학회지:정보시스템연구
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• 제27권1호
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• pp.21-42
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• 2018

Purpose This study investigates that the routes of psychological ownership in Fanpage and the effect of psycholoigical ownership on customer loyalty based on psychological ownership theory. Fans are customers who clicked 'Like' on the fan page. These fans have a lot of friends on Facebook, so the word-of-mouth is more effective than other online communities. Therefore, it is necessary for fans to have psychological ownership, actively responding to the fan pages, and recommending them to friends. However, previous social network service studies have overlooked the importance of psychological ownership. In this study, we examine what factors can increase psychological ownership and show that customer loyalty can be enhanced through psychological ownership. Design/methodology/approach This study was designed to investigate the structural relationship between Fanpage Familiarity, Interaction(Customer-Brand interaction and Customer-customer interaction), Psychological Ownerhisp, and Customer Loyalty. Structural equation modeling with SmartPLS2.0 was used to analyze the relationships in the research model. Findings The results showed that Fanpage Familiarity and Customer-customer interaction is positively related with Psychological Ownership. However, Customer-Brand interaction did not influence Psychological Ownership. Psychological Ownership has a positive impact on Intention to Continue Using Fanpage and Recommend.

• 유통과학연구
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• 제14권8호
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• pp.35-44
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• 2016

Purpose - This study aims to understand the relationship between Chinese local SNS usage and social capital building through Chinese international students in South Korea. A research model that illustrates the relationship between the SNS usage (i.e., intensity, communication and social capital building is proposed. Based on the analysis, this study will provide responses to the question of if SNS really presents the danger of trapping international consumers in their local comfort zone or enhance social capital for the users. Research design, data, and methodology - The survey questionnaire is circulated among the WeChat (a Chinese local SNS) users who are the Chinese international students studying in South Korea. The collected data is analyzed by structural equation method using SPSS and AMOS. Results - Proposed hypotheses of the positive relationships between the attachment of SNS use and both individuals' bridging and bonding social capital are supported. It's also supported that (1) interpersonal communication, (2) interpersonal communication with old friends, and (3) interpersonal communication for making new friends on SNS positively influence individuals' bridging social capital. Conclusions - This paper demonstrates the importance of intensity of WeChat use and interpersonal communication that impact Chinese international students' bridging and bonding social capital on WeChat.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제22권11호
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• pp.619-624
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• 2016

Social-aware video는 자유로운 스토리 전개를 통해 인물들간의 관계뿐만 아니라 경제, 정치, 문화 등 다양한 지식을 사람에게 전달해주고 있다. 특히 장소에 따른 사람들간의 대화 습성과 행동 패턴은 사회관계를 분석하는데 있어서 아주 중요한 정보이다. 하지만 멀티모달과 동적인 특성으로 인해 컴퓨터가 비디오로부터 자동으로 지식을 습득하기에는 아직 많은 어려움이 있다. 이러한 문제점들을 해결하기 위해 기존의 연구에서는 딥하이퍼넷 모델을 사용하여 드라마 등장인물의 시각과 언어 정보를 기반으로 계층적 구조를 사용해 소셜 네트워크를 분석하였다. 하지만 장소 정보를 사용하지 않아 전반적인 스토리로부터 소셜 네트워크를 분석할 수밖에 없었다. 본 논문에서는 기존 연구를 바탕으로 장소 정보를 추가하여 각 장소에서의 인물 특성을 분석해 보았다. 본 논문에서는 총 4400분 분량의 TV드라마 "Friends"를 사용했고 C-RNN모델을 통해 등장인물을 인식하였으며 Bag of Features로 장소를 분류하였다. 그리고 딥하이퍼넷 모델을 통해 자동으로 소셜 네트워크를 생성하였고 각 장소에서의 인물 관계 변화를 분석하였다.

• 서비스연구
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• 제2권1호
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• pp.13-27
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• 2012

개인의 소셜네트워크 서비스 활용의 증가는 기업의 비즈니스 활동에 새로운 기회로 주목 받고 있으며 소셜네트워크 서비스 관련연구 또한 많은 관심을 받고 있다. 본 연구는 사회네트워크분석을 통하여 소셜네트워크 서비스 사용자패턴을 발견하고자 한다. 그리고 사용자의 사용목적에 따른 네트워크의 패턴을 구분하고자 한다. 이를 위해 네트워크분석 도구인 NodeXL을 이용하여 소셜 네트워크 서비스 중 페이스북(Facebook.com)의 사용자를 분석하였다. 그 결과 단일 네트워크로 인식되었던 사용자의 네트워크를 여러 개의 하위그룹으로 구분할 수 있었다. 그리고 개인사용자의 페이스북 친구와 국내 K대학의 페이스북 친구를 비교하여 소셜네트워크 서비스의 사용목적에 따른 네트워크 구조의 차이를 발견하고 노력 하였다.

• 디지털산업정보학회논문지
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• 제14권3호
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• pp.1-10
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• 2018

Social network services allow you to share your thoughts and preferences more easily. They share your views with a large number of people who are friends with you without restriction of time or place. In the IoT environment, the amount of data is massively increasing as social network services spread rapidly. This change in the environment is driving the need for research into new retrieval methods that are different from conventional retrieval methods. In this paper, we propose a progressive retrieval method using the intimacy of social network users in the IoT. The first thing is to extract the user with the highest intimacy by using the property that the number of the owner of the information stored in the IoT environment is small. By accessing information in objects owned by these extracted users, the amount of information retrieved is reduced. It also improves retrieval efficiency by gradually retrieving information according to the user's level of interest. We present a new retrieval method and algorithm. The scenario also illustrates the effectiveness of the proposed method.