We take decisions every moment of our lives. What do we eat? Which phone to buy? What book to read? Do we rent or buy? What retirement plan to choose? What should be our career? For every one of these decisions most of us turn to online social networks (OSN) to seek information, advice, and support. OSN have become widely popular as a source of data or reference for those seeking advice.

We present the Social Farm architecture for encouraging user contribution through the profit motive. Our solution leverages the connectivity and trust relationships available in online social networks to create and operate businesses using the programming interface provided by existing online social networks. Social Farm automates the tasks of finding partners, implementing the business workflo...

3. DEFINITION Spatio-temporal social networks model the relationships expressed in a social network and the changes to it over time. These changes can be of two types; First, Changes to the level of expressed relationship between two or more actors. For example, in a social network which expresses trust, there could be a change in the level of trust between two actors. Second, changes to the ph...

Health and finance are two aspects of life that are crucially important. Health and finance sites are the most frequently visited by online participants. The sheer volume of sites and the variety of information and advice available online on those two topics have left individuals with potentially greater support for their decision-making (DM) processes. This paper uses the Netnography qualitati...

In this paper, we will describe the use of online social networks (OSNs) for law enforcement. With the increased growth of use of OSNs, the use of OSNs for law enforcement has also shown a parallel growth. Such a trend can easily be seen in the increase of reported number of criminal cases being solved by police officers of various countries. It is of interest to find out how OSNs are actually ...

We employ the recently developed theory of isospectral network reductions to analyze multi-mode social networks. This procedure allows us to uncover the hierarchical structure of the networks we consider as well as the hierarchical structure of each mode of the network. Additionally, by performing a dynamical analysis of these networks we are able to analyze the evolution of their structure all...