• 한국지능정보시스템학회:학술대회논문집
• /
• 한국지능정보시스템학회 2006년도 춘계학술대회
• /
• pp.344-353
• /
• 2006

Nowadays many people participate in online communities for information sharing. But most recommender systems are designed for personalization of individual user, so it is necessary to develop a recommendation procedure for group users, such as participants in online communities. This paper proposes a group recommender system to recommend books for group users in online communities. For such a purpose, we suggest a group recommendation procedure consisting of two phases. The first phase is to generate recommendation list for 'big user' using collaborative filtering, and the second phase is to remove irrelevant books among previous list reflecting the preference of each individual user. The procedure is explained step by step with an illustrative example. And this procedure can potentially be applied to other domains, such as music, movies and etc.

• 한국문헌정보학회지
• /
• 제43권3호
• /
• pp.297-312
• /
• 2009

본 연구에서는 온라인 지식 커뮤니티에서의 지식기여에 대한 태도와 지식기여 의도에 영향을 미치는 내재적 및 외재적 동기요인의 통합모형을 분석하였다. 온라인 지식 커뮤니티에서의 지식기여에 대한 태도에 영향을 미치는 내재적 동기요인으로는 즐거움, 지식 자기역능감, 책임감을, 외재적 동기요인으로는 기대 상호이익, 이미지, 주관적 규범을 도출하고, 이 요인들 간의 구조적 관계가 지식기여에 대한 태도와 나아가 지식기여 의도에 미치는 영향을 분석하였다. 분석 결과, 내재적 동기요인 중 즐거움과 지식 자기역능감이 지식기여에 대한 태도에 유의한 영향을 미치는 것으로 나타났으며, 책임감은 유의한 영향을 주지 않는 것으로 나타났다. 외재적 동기요인 중 기대 상호이익은 지식기여에 대한 태도에 유의한 영향을 미치는 것으로 나타났으나, 이미지와 주관적 규범은 유의한 영향을 미치지 않는 것으로 나타났다.

• 디자인학연구
• /
• 제19권3호
• /
• pp.131-142
• /
• 2006

The purpose of this study is to develop an online community construct, which proposes an inclusive illustration of the structure of online communities, for online community designers. This study reviewed researches from psychology, sociology, management engineering, and practical reports to understand the characteristics and dynamics of online communities. The proposed online community construct visualizes the cognitive, affective, and behavioral aspects of online community. As the notion of community originates from geographical groups, and with the assumption that geographical community shares identical characteristics with online community, this study reviewed researches about geographical communities as a starting-point. Then the study went through three main perspectives (1) online community attributes, (2) sense of online community and (3) challenges of online community. Then this study proposed an online community construct that encompasses the reviewed frameworks. The online community can be seen as a congregation of members from two sources. One is from the 'Shared Goal' that meets the personal needs. Given the shared goal, members gather into the community without personal relationship and have more chances to feel the sense of belonging to their needs fulfillment or benefit. This befitting tendency leads to strengthening of membership. Public online forums fall under this classification. The other source is from the emotional connections that are already initiated by personal and casual contacts in the real world. The network of emotional connection can evolve into an online congregation of people under faint boundaries. Although there is no (or weak) shared goal, members are strongly bound to other members. Personal homepage or web log (blog) can be classified as an example of relationship-oriented community.

• 한국정보시스템학회지:정보시스템연구
• /
• 제33권1호
• /
• pp.45-68
• /
• 2024

Purpose This paper examines the role of local market-based communities in driving regional revitalization, using detailed analysis of online networks. We aim to dissect a local community's communication network, highlighting members with high engagement levels and exploring their characteristics. Our goal is to identify the conditions that allow local community networks to grow independently and to demonstrate how the activation of these networks contributes to regional revitalization. Design/methodology/approach We employ a mixed-methods approach, combining social network analysis with statistical techniques to investigate the structure of online communication networks. Specifically, we use ANOVA to determine the statistical significance of our findings, ensuring their reliability. To complement our quantitative data, we include qualitative insights from interviews, adding depth and context to our analysis. Findings Our results show that individuals with high centrality in the online network are crucial for maintaining active local communities. We find that leveraging local resources to create a supportive and adaptable environment is essential for the communities' sustainability and expansion. Importantly, our research draws a direct connection between the vitality of local community networks and the broader process of regional revitalization. We argue that energizing local communities is an effective way to address the risk of regional decline. By integrating quantitative analysis with qualitative feedback, this study contributes to the understanding of local market-based communities as key drivers of regional development. It emphasizes the importance of building vibrant, resourceful community networks to revitalize areas experiencing socio-economic challenges.

• 경영정보학연구
• /
• 제19권2호
• /
• pp.115-136
• /
• 2017

온라인 커뮤니티는 우리 일상생활에서 큰 비중을 차지하고 있다. 수없이 많은 온라인 커뮤니티가 존재하지만, 그 가운데 소수의 커뮤니티만이 다수의 사용자를 끌어들이는 데 성공하고 압도적인 대다수의 커뮤니티는 생존하기 위해 분투하는 롱테일 현상(long tail phenomenon)이 나타나고 있다. 다양한 온라인 커뮤니티가 공존할 수 있고, 실제로 공존하게 하기 위해서는 사용자를 지속적으로 끌어들이고 커뮤니티를 성공시키는 데 중요한 역할을 하는 요인이 무엇인지 이해할 필요가 있다. 공존 문제는 조직생태학 관련 문헌에서 심도 있게 다뤄져 왔다. 그러나 온라인 커뮤니티와 전통적인 조직 사이에 유사점과 함께 차이점도 있다는 점을 감안해 조직 이론을 온라인 세계에 직접 적용할때 유의해야 한다. 본 연구는 Davids et al.(2007)이 제시한 로드맵에 따라 에이전트 기반 모델링 및 시뮬레이션을 실시하여, 선행 연구를 토대로 새로운 이론을 개발하고자 한다. 서로 공존하는 커뮤니티 두 곳을 설정하여 연구를 실시한 결과, 커뮤니티의 규모와 참여 비용이 커뮤니티 발전에 상당한 영향을 미친다는 사실을 알 수 있었다. 커뮤니티가 클수록 자주 접속하는 적극적인 사용자가 더 많이 유입될 수 있다. 한편 참여 비용이 낮을수록 가입자들이 게시물을 읽고 게재하는 활동이 활성화된다. 이와 함께 관심사 분포가 커뮤니티의 주제 트렌드에 중요한 영향을 미친다는 사실도 발견했다. 단일 주제에 집중하는 집단의 경우, 주제가 초기에 광범위했는지 협소했는지 여부와 무관하게 커뮤니티는 신속하게 해당 주제 쪽으로 모여들 수 있다. 이 같은 시뮬레이션 모델은 연구문헌에 이론적인 시사점을 제시하는 동시에, 온라인 커뮤니티 운영자들에게도 실질적인 지침을 제공해 준다.

• 대한가정학회지
• /
• 제45권10호
• /
• pp.21-31
• /
• 2007

The purpose of this study was to clarify the factors that characterize the fashion brand online communities that have a high participation rate among high school students, and to determine the impact of those factors on the high school students' commitment to the community, especially in relation to their demographics. The study was implemented through a descriptive survey method using an online questionnaire. The sample consisted of 301 members of online fashion brand communities operated on the Daum portal site. The data were analyzed by frequency, factor analysis, and regression analysis. The results are as follows: (1) Factor analysis revealed that the characteristics of a fashion brand online community are associated with three factors ; compensation/interest, interactivity, and information. (2) Regression analysis showed that the more compensation/interest, opportunity for interaction, and information the community provides, the more likely high school student members are to show a higher level of commitment to the community. (3) There was no difference in the effect of community attribute factors on the high school student members' commitment to the community according to gender. The group of students majoring in human and liberal education was the most influenced by the attributes of fashion brand online communities. The interactivity factor had a greater impact on the group of students majoring in art and physical education than on the other groups. The greater the use of the Internet, the greater the impact of community attributes on commitment. (4) In the process of developing an online community, marketers should fully consider the fact that information factors have the biggest impact on high school students' commitment to the community. Therefore, greater effort should be made to differentiate between community attributes based on high school students' majors and their amount of Internet use in order to motivate commitment to the community and brand loyalty as well.

• 한국IT서비스학회지
• /
• 제22권3호
• /
• pp.101-118
• /
• 2023

The 'MZ generation' is accustomed to expressing their thoughts and opinions online. As a result, the role of social media in understanding the opinions and public sentiment of the MZ generation has become increasingly important. In particular, the role of social media in understanding the opinions of young people in political contexts such as policies and elections is becoming more significant. Traditionally, in such political situations, various institutions conduct opinion surveys to grasp the opinions of the people. However, existing opinion surveys have many errors and limitations in understanding the specific opinions of the entire population since they are conducted on arbitrary individuals through survey techniques. Online communities are representative social media that share the opinions of the public on specific issues such as politics, economics, and culture. Therefore, online communities are widely used as a means to supplement the limitations of traditional opinion polls. In particular, the MZ generation is familiar with online platforms, and their political support has significant influence on election results and policy decisions. With this regard, this study analyzed the relationship between the sentiment reflected in online community text data by age group on major candidates and public opinion survey support rates during the Korean presidential election for those in their 20s. The analysis showed that negative sentiments reflected in online communities by the MZ generation have a negative correlation with public opinion survey support rates. This study contributes to theory and practice by revealing a significant association between social media and public opinion polls.

• 지식경영연구
• /
• 제10권2호
• /
• pp.105-119
• /
• 2009

This study addresses the following questions : how does organization citizenship behavior(OCB) affect knowledge contribution in online communities? does the antecedents of OCB, cohesiveness and affection similarity, influence knowledge contribution in online communities? In order to test our hypotheses with an empirical study, we have conducted a survey which resulted in 192 valid response in the final sample. The PLS analysis results indicate that OCB affects knowledge contribution and coherence and affection similarity of online community users have influence on OCB. Further, knowledge contribution is influenced by community users' affection similarity. Practical implications of these findings and future research implications are also discussed.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제4권4호
• /
• pp.547-559
• /
• 2010

As web-based online communities are rapidly growing, the agents in the communities need to know their measurable belief of trust for safe and successful interactions. In this paper, we propose a computational model of trust resulting from available feedbacks in online communities. The notion of trust can be defined as an aggregation of consensus given a set of past interactions. The average trust of an agent further represents the center of gravity of the distribution of its trustworthiness and untrustworthiness. Furthermore, we precisely describe the relationships among reputation, trust and average trust through concrete examples showing their computations. We apply our trust model to online social networks in order to show how trust mechanisms are involved in the rational purchasing decision-making of buyers and sellers, and we summarize our simulation results.

• 정보화정책
• /
• 제18권2호
• /
• pp.23-48
• /
• 2011

본 연구는 20대 대학생을 대상으로 온라인 공동체 이용의도에 영향을 미치는 요인을 사회적 영향, 온라인 공동체 일체감, 온라인 공동체 이용에 대한 의견 그리고 유용성 인식 등을 중심으로 경험적 연구를 수행하였다. 본 연구의 분석결과는 다음과 같다. 첫째, 20대 대학생들이 주로 이용하는 온라인 공동체 웹사이트는 싸이월드를 가장 많이 이용하고 있으며 이밖에 카페, 블로그, 페이스북 등을 이용하고 있는 것으로 나타났다. 둘째, 개념적 제안모델에서 제시된 사회적 영향은 주관적 규범과 분류되었으며, 사회적 영향은 유용성 인식에 유의적인 변수로 확인되었고, 주관적 규범은 온라인 공동체 일체감과 유의적 관계를 맺는 것으로 나타났다. 셋째, 연구모형을 구성하는 변수간의 경로관계에 있어서 온라인 공동체 일체감과 유용성 인식은 온라인 공동체 이용의도에 대해 온라인 공동체 이용에 대한 의견을 매개한 간접효과로써 영향을 미친 것으로 나타났다. 따라서 온라인 공동체 이용의도를 제고하기 위해서는 온라인 공동체 일체감을 강화하고, 유용성 인식 수준을 높이는 것 뿐만 아니라 긍정적인 온라인 공동체 이용태도를 가질 수 있도록 체계적인 교육과 사회적 분위기 조성이 필요하다고 판단된다.