• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.8
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• pp.3630-3656
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• 2018

Degree distribution can provide basic information for structural characteristics and internal relationship in social network. It is a critical procedure for social network topology analysis. In this paper, based on the mean-field theory, we study a special type of social network with exponential distribution of time intervals. First of all, in order to improve the accuracy of analysis, we propose a spreading coefficient algorithm based on intimate relationship, which determines the number of the joined members through the intimacy among members. Then, simulation show that the degree distribution of follows the power-law distribution and has small-world characteristics. Finally, we compare the performance of our algorithm with the existing algorithms, and find that our algorithm improves the accuracy of degree distribution as well as reducing the time complexity significantly, which can complete 29.04% higher precision and 40.94% lower implementation time.

• Journal of the Korean Home Economics Association
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• v.39 no.6
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• pp.93-108
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• 2001

After-school activities of 817 7th grade children from Kwangju, Busan, and Kumi were studied to determine relations with (a) child, family and contextual variables (b) child's academic achievement and social development. Children were more likely to engage in extracurriculum activites and TV watching than other after-school activities. After-school activities were related to child's, parent's and contextual variables. Child's characteristics related to after-school activities were sex, impulse control, mastery and self-care. family's characteristics related to after-school activities were mother's employment, emotional support, control, monitoring and SES. Region and regional sagy were related to after-school activities. Some of after-school activities were related child's academic achievement and social development. Especially academic activites have a positive and powerful effects on child's academic achievement and social development.

• International Journal of Internet, Broadcasting and Communication
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• v.15 no.4
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• pp.51-60
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• 2023

This study aims to examine factors influencing the intention to continue using the metaverse, focusing on the impact of social norms. Specifically, direct and indirect effects of technical characteristics (perceive quality, interactivity, perceived playfulness), user characteristics (self-efficacy, personal innovativeness), and social influence factors (descriptive norm, injunctive norm, subjective norm) on continuous use intention were examined. The role of perceived ease of use and perceived usefulness as a mediator was also examined. An online survey was conducted with 165 college students attending universities in two large cities in South Korea who had used the metaverse. As a result, perceived playfulness, descriptive norm, and perceived usefulness directly influenced continuous use intention. Perceived playfulness, interactivity, and subjective norm influenced continuous use intention indirectly through perceived usefulness. This study theoretically extends the Technology Acceptance Model by specifying social influence in metaverse contexts. Practical implications are provided in terms of marketing strategy for the metaverse industry to continue to grow and develop.

• Korean Journal of Health Education and Promotion
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• v.22 no.2
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• pp.111-124
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• 2005

Objectives: The purpose of this study is to evaluate the impact of psycho-social factors on smoking especially the impact of a social support and stress on smoking among boy's high school students. Methods: This study was conducted by administering a questionnaire to 442 boys' high school students living in Deajeon, Korea. This data were analyzed with the SPSS statistical package using t-test and logistic regression. Major findings of this study are as follows: Results: 1. Analysis of the relationship of smoking, stress and social support: The relationship between stress and smoking and between friend's support and smoking had a positive correlation. But the relationship between parents' support and smoking and between teacher's support and smoking had a negative correlation. 2. Multiple logistic analysis of the impact of stress, social support and general characteristics on smoking: The relationship between stress and smoking had a positive correlation as social support and general characteristics were controlled. In contrast, the relationship between social support -parents', friend's, teacher's support- and smoking had no significant correlations as stress and general characteristics were controlled. The risk factors of smoking of boy's high school students were smoking friends, drinking, a type of school, pocket money per month, and stress. And the most powerful predictor of smoking was smoking friends(OR=12.35). Conclusions: The results showed that the variables affecting mainly on smoking were the personal background -smoking friends, drinking, a type of school, pocket money per month- and stress. Therefore, these findings give useful information for constructing a program against smoking or educating about smoking.

• The Journal of the Korea Contents Association
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• v.12 no.12
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• pp.212-222
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• 2012

From the social work practicum, social welfare major students learn practical works in the field and cultivates professional ability. Furthermore, he tries to find his fitness and own qualification as a social worker. The purpose of this study is to examine the effects of supervision characteristics of social work practicum on the social welfare major student's career development. For the research, a survey of 212 students having had experience of social work practicum was conducted. The major findings in this study were as follows; Most of supervisors were female, the frequency of the supervision were regular, and supervision was offered mainly in the form of group or group and individual mixed. Students evaluated the relationship between supervisors and student was 3.20/4, supervision satisfaction measurement was 3.03/4, and students showed low level of career identity(5.80/12). By the hierarchical multiple regression, career identity was mostly affected by supervision characteristics, relationship between supervisors and student, and supervision satisfaction. This study finally discussed theoretical implications for future study and practical implications for career identity strategies on the results.

• Fashion & Textile Research Journal
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• v.23 no.1
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• pp.31-43
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• 2021

This study analyzes the characteristics of fashion flex, which have recently spread on social media. The study was conducted with big data analysis that derived flex keywords from news articles and social media as well as case studies that collected 136 posted images on Instagram to analyze the content. The meaning of flex was positively accepted based on big data results. Flex was also a buzzword frequently used on social media as well as a symbolic meaning when discussing luxury goods or fashion brand experiences. The characteristics of fashion flex in social media were largely divided into three categories. First, conspicuous consumption is considered an active expression of individual fashion tastes or self-oriented consumption and emphasizes individuality through consumption. The second characteristic is that the public actively participates in events or fashion flex challenges. People use similar fashion styles or products to participate in playful social interactions with others using various Instagram functions. Finally, acts of pursuing psychological well-being in social media were used as the term flex in a broad sense and were shown to actively explore fashion-related materials and experiences for individual happiness. This study found that the meaning of existing conspicuous consumption is transforming into positive consumption, such as the expression of taste-based identity or the seeking of fun and psychological well-being. It is also meaningful that fashion has become an effective means to express individuality and taste in expressing flex.

• Journal of Information Technology Services
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• v.19 no.1
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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.

• Journal of Korean Biological Nursing Science
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• v.19 no.2
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• pp.98-106
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• 2017

Purpose: This study aimed to analyze the relationships between the factors affecting health levels of the elderly in rural areas. Methods: Subjects were 257 elderly people residing in rural areas of six cities and Gangwon Province. Data was collected through questionnaires (demographic and socioeconomic status, social resources, health behaviors, physical environment, psychological tendency and general health levels) and was analyzed by using multiple regression and Sobel test. Results: The demographic and socioeconomic characteristics of the subjects exerted statistically significant influence on their social resources, health behaviors, physical environment, and psychological tendencies. The demographic and socioeconomic characteristics, social resources, health behaviors, physical environment, and psychological tendencies, in turn, exerted a statistically significant influence on the health level. The social resources had mediating effects on the relationship between income, one of the demographic and socioeconomic characteristics, and health level. The residential environments had mediating effects on the relationship between income and health level. The psychological tendency had mediating effects on the relationship between income and health level. Conclusion: This study suggests that income is an important factor affecting health level among rural elderly people. In addition, social resources, health behaviors, physical environment, and psychological tendencies among them also affect health level, so it is necessary to make strategies to improve these factors.

• Journal of Korea Society of Industrial Information Systems
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• v.18 no.1
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• pp.71-79
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• 2013

In order to enhance the understanding of social commerce which is widely spreading globally in a few years, the characteristics selecting social commerce company are analyzed by using quality function deployment(QFD) that is popular in quality management area. To achieve this purpose, this study investigates the concept, market environment, and major competitors of social commerce and interactive relationship between customer's requirements and service characteristics was uncovered by using the house of quality(HOQ) which is a method of QFD. In addition, this study proposes the conceptual model integrating analytic hierarchy process(AHP) and QFD by quantitatively evaluating the importance of customer's requirements and service characteristics.

• Journal of the Korean Society of Clothing and Textiles
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• v.46 no.5
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• pp.741-759
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• 2022

This study examines the effect of live commerce characteristics on consumption behavior mediated by presence. As contactless shopping has become the new normal, live commerce is emerging as an innovative communication service between consumers and sellers. We examine the role of interaction and streamers' attributes on sharing and purchase intention by mediating social presence and telepresence. A web-based experiment was conducted to test our hypotheses. The data of 267 participants were analyzed using SPSS 23.0 and AMOS 21.0. The results showed that the Streamer-Consumer interaction had a positive effect on social presence and telepresence. By contrast, the Consumer-Consumer interaction had no significant effect on social presence and telepresence. We further found that streamer trustworthiness had a positive effect on both social presence and telepresence, while streamer attractiveness had a positive effect only on telepresence. Thus, social presence and telepresence positively influenced sharing and purchase intention. Overall, these findings illustrate that the Streamer-Consumer interaction and streamer trustworthiness are vital characteristics that lead to higher levels of presence using live commerce. Several academic and managerial implications are suggested based on these results.