Nowadays, users join several on-line social networks (OSNs) so that design and development applications able to work on multiple OSNs is a challenging issue. However, OSNs present relevant differences from both the adopted terminology (similar concepts have different names) and the supported technology (for example, in the APIs provided for data extraction). Consequently, the heterogeneity of O...

This position paper discusses the role of advanced sensor systems, integrated into smart homes and transportation networks and measuring use and consumption, in supporting a transition at the level of individuals, small groups and entire communities, to more sustainable ways of living. It focuses on how such technologies can be leveraged as a motivational tool. In particular it highlights the p...

Online social networking is increasingly popular and is a feature of many websites. Providing multiple types of relationship, such as friend, fan or colleague, can enhance the significance of the networks. We present an empirical study of an online political forum where users engage in content creation, voting, and discussion. The users also make explicit connections via three relationship type...

Online social networks are gaining increasing economic importance in light of the rising number of members. The numerous recent acquisitions priced at enormous amounts illustrate this development. Therefore, the growing relevance of online social networks in science as well as in practise revealed the need for adequate valuation models, which take into account these networks’ specific character...

0747-5632/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.chb.2010.07.028 * Corresponding author. Tel.: +852 34112102; fax: E-mail addresses: [email protected] (C.M.K. du.hk (P.-Y. Chiu), [email protected] (M.K.O. Lee) The growth and popularity of online social networks has created a new world of collaboration and communication. More than a billion individuals around the world are c...

The importance of modeling and analyzing Social Networks is a consequence of the success of Online Social Networks during last years. Several models of networks have been proposed, reflecting the different characteristics of Social Networks. Some of them fit better to model specific phenomena, such as the growth and the evolution of the Social Networks; others are more appropriate to capture th...

bullying is a kind of peers’ altercation which usually occurs in schools. it seems to be a universal phenomenon that can be observed almost in all classrooms. since the expansion of information and communication technologies, there have been social concerns related to negative effects of these networks, especially in adolescents. in this paper which documentary methodology by referring to execu...

1. ABSTRACT Through our study we empirically test the role of peers on diffusion of niche music in an online social network. Over the last few years, online networks have been gaining popularity and allowing community members to share and exchange information. Traditionally this online diffusion of information was dependent on other mechanisms like viral marketing, recommender systems, and onli...

Recently, online social networking sites have exploded in popularity. Numerous sites are dedicated to finding and maintaining contacts and to locating and sharing different types of content. Online social networks represent a new kind of information network that differs significantly from existing networks like the Web. For example, in the Web, hyperlinks between content form a graph that is us...