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...

Modeling is not just a scientific activity, but an educational one, and is naturally paired with the theory and practice of constructionism. To date, however, constructionist modeling environments such as NetLogo have focused on individual work, rather than collaborative modeling. In this paper, we describe our research efforts at making modeling a collaborative activity, using a Web-based tool...

Opinion leaders on the internet play an important role in promoting the formation of online public opinion, which can influence the direction of public opinion. In this paper, we use social network analysis and content analysis to recognize the opinion leaders of online communities. First of all, we propose “Eight Degree” attribute indexes based on the characteristics of opinion leaders. Then, ...

Open innovation is an emergent paradigm by which organisations make use of their internal and external resources to perform their innovation processes. The growth of information and communication technologies has facilitated the spread of online open innovation communities, where users can share ideas as well as comment on and evaluate ideas posted by other community members. In this work, the ...

With the rapid growth of social networks and the increased rate of adoption by patients, healthcare organizations are progressively adopting online community-based initiatives to conduct healthcare activities. Considering the enormous potential online communities hold, for practitioners to get closer to their patients, online communities could be effectively utilized to conduct health managemen...

Detecting community structures in online social network is a challenging job for traditional algorithms, such as spectral clustering algorithms, due to the unprecedented large scale of the network. In this paper, we present an efficient algorithm for community detection in online social network, which chooses relatively small sample matrix to alleviate the computational cost. We use -graph to c...

One of the reasons behind the success of Social Network Analysis is its simple and general graph model made of nodes (representing individuals) and ties. However, when we focus on our daily on-line experience we must confront a more complex scenario: people inhabitate several on-line spaces interacting to several communities active on various technological infrastructures like Twitter, Facebook...

In this exploratory study, Cocciolo, Chae and Natriello investigate the extent to which the communicative processes exhibited within a large digital repository illustrate the emergence of an online community of practice (CoP). In order to make this claim, we present a method for identifying the emergence of an online CoP using Social Network Analysis (SNA) on communication data (i.e., uploads a...

In this demonstration, we present PriGuardTool, which is a Web-based tool that can detect privacy violations in online social networks and notify the users accordingly. Our tool comes up with an interface where the users input their privacy concerns. An agent represents a user in the online social network. Each agent is responsible for generating commitments between its user and the system to m...

In this paper we examine the role of social networking and online community building in distance design learning. We analysed interactions of Facebook, a popular social network site, using qualitative content analysis and social network analysis. Two distinct learner identities could be identified – a design course Content Focused Learner and a course Context Centred Socialiser. We discuss the ...