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Trust plays a crucial role in helping online users collect reliable information and it has gained increasing attention from the computer science community in recent years. Traditionally, research about online trust assumes static trust relations between users. However, trust, as a social concept, evolves as people interact. Most existing studies about trust evolution are from sociologists in the physical...
Community detection is an important way to analyze and understand the real networks. In this paper, we not only define Local community modularity and Tightness between local communities for directed weighted networks, but also realize a distributed algorithm that detects overlapping local community in networks. The algorithm is divided into two parts, initial local community detection and similar...
The paper builds the influential factor model of virtual community knowledge sharing behavior from the four dimensions. By using structural equation model, the paper makes an empirical research on the key factors of promoting the college students' knowledge sharing behavior in the virtual community and the impact of knowledge sharing behavior of virtual community members on the community loyalty.
The Community of Inquiry (COI) framework focused on the roles of course design and facilitation (Teaching Presence), students' sense of community and belonging (Social Presence), and cognitive engagement with the course content (Cognitive Presence) in developing valuable learning experiences in primarily text-based learning environments. The role of students' self-regulatory processes (Learning Presence)...
Recommending trusted services to users is of paramount value in service-oriented environments. Reputation has been widely used to measure the trustworthiness of services, and various reputation models for service recommendation have been proposed. Reputation is basically a global trust score obtained by aggregating trust from a community of users, which could be conflicting with an individual's personal...
With the growing popularity of social media, consumers often rely on the recommendations obtained from online sources when making the purchase decision. Social commerce in this regard represents a shift in consumer's thinking from inefficient individual consumption to collaborative sharing and shopping. In this study, we investigate social commerce intention from two different but interrelated angles,...
In accordance with information processing theory, the outside information influenced individual cognitive, and then affecting the individual evaluation and behavior. However, the academic circles have neglected the psychological reactions of consumers, this study build the conceptual model of relationship between corporate social responsibility and brand equity, consumers' emotional and rational cognition...
The reliability of online reviewers is a complex issue due to multiple dimensional and heterogeneous properties. In this paper, we propose a computational study of the rating pattern of reviewers. A reliability matrix is built between two data types which are the reviewer and the product. Two types of clusters can be extracted concurrently after a nonnegative tri-factorization of the reliability matrix...
This paper investigates whether the quality and efficiency of peer review is more influenced by scientists' behaviour or by the type of scientific community structure (homogeneous vs. heterogeneous). We looked especially at the importance of reciprocity and fairness to ensure cooperation between everyone involved and the role of evaluation standards to reduce parochialism. We modelled peer review...
Several emerging technologies, namely, high penetration grid-connected distributed photovoltaics (PV), energy storage, and smart grid have seen tremendous growth in recent years. Because of their interconnected nature, the deployed systems are fairly complex and logically converging, which presents both challenges and opportunities for electric grid operation and reliability. The US Department of...
The aim of this paper is to provide a theoretical framework to analyze obstacles, challenges, and incentives which lead non-professional developers to design websites and produce information that are accessible to people with disabilities, and to describe the development of a reliable and validated instrument designed to test it. Results show that intrinsic motivation, self-efficacy, influence of...
On the basis of extant literature, we built a conceptual model of the relationship among Perceived Quality, Perceived Value, Satisfaction, Sense of Belonging and Usage, and proposed some hypotheses about the influencing factors of continued system usage in SNS. To test the hypotheses, we designed a questionnaire, and conducted a survey in Xidian University. We used SPSS13.0 to analyze the collected...
This paper focuses on the aspect of virtual community trust, combining the theory of Electronic word-of-mouth and Technology Acceptance Model, to develop a deeper understanding of how virtual communities influence consumer participation in online group-buying, and to extract the key factors that impact consumer willingness to participate in online group-buying. The research involves survey responses...
Universities are now are required to be responsive to student expectations To become a university of choice, university administrators need to understand student experiences in their university and how to improve the student's experiences so that a positive image will be portrayed to the prospective students. Therefore measuring student's university experience is vital. The main objective of this...
QQ group is a popular virtual community network based on QQ, an instant messaging system. To examine what factors contribute to college students experience of sense of virtual communities, 270 QQ group users were surveyed. The findings indicate that perceived usefulness, perceived ease of use and perceived enjoyment were positively related to membership and influence. Perceived enjoyment and exchanging...
This paper describes the development of a reliable instrument designed to assess longitudinally K-5 students' identity development in engineering. Item construction, pilot testing, and factor analysis are described along with reliability and validity of the instrument. The aim of the engineering identity development scale [EIDS] was to measure children's academic, school, and occupational identity...
Since the explosion and popularity of learning virtual communities, Internet has increased as a new and important channel for undergraduate students to acquire necessary knowledge and efficient learning methods. Based on the empirical literature and the nature of virtual community, this study proposed a series of research hypotheses and a theoretical model. Studentspsila self-efficacy (computer self-efficacy...
This paper is designed to explore the relationship between knowledge sharing in virtual communities and consumers brand switching intention by empirical methods. The results show: brand use experience has no noticeable impact on consumers brand switching intention in virtual community environment; the degree of sharing through expectation, perceived product quality, perceived value and brand reputation...
In recent years, there has been a dramatic proliferation of research concerned with the ubiquitous learning (u-learning). The u-learning systems have to be continuously evaluated and improved for ensuring the system reliability. Therefore, this work based on meaningful learning aspect to propose a u-learning evaluation model. The model blends features of u-learning and meaningful learning to construct...
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