Social learning analytics introduces tools and methods that help improving the learning process by providing useful information about the actors and their activity in the learning system. This study examines the relation between SNA parameters and student outcomes, between network parameters and global course performance, and it shows how visualizations of social learning analytics can help obs...

In this note we prove a discrete analogue of the continuous Halanay inequality and apply it to derive sufficient conditions for the global asymptotic stability of the equilibrium of certain generalized difference equations. The relation with some numerical schemes for functional delay differential equations is discussed.

So far there have been few results presented on the attracting and quasi-invariant sets for impulsive stochastic difference equations with continuous time. The main aim of this work is to close this gap. By establishing a difference inequality with continuous time, we obtain the attracting and quasi-invariant sets of systems under consideration. An example is given to illustrate the theory. Mat...

This paper presents an analysis of networks among small and medium-sized enterprises in the Irish biotech sector. The study applies social network analysis to determine the structure of networks of company directors and inventors in the biotech sector. In addition, on the basis of interviews, this article analyses the extent of actual knowledge flow through these industry networks. The paper ma...

Social networks, as well as many other real-world networks, exhibit overlapping community structure. In this paper, we present formulas which facilitate the computation for characterizing the overlapping community structure of networks. A hypergraph representation of networks with overlapping community structure is introduced. Using the hypergraph representation we setup a social network model ...

Understanding relations between offenders in organized crimes is important for law enforcement and intelligence agencies to detect, prevent, and respond to crimes and terrorism events. However, several challenges (e.g., information overload, difficulty of relation search and extraction of relation patterns) face the task of criminal relation exploration. In this paper we present our ongoing res...

book social media are reading communities primarily developed as online social networks. this study aims to find precise criteria and indicators for evaluation of book social network and examine and rank the most popular book social networks. the sample population included 10 english and two persian book/reading social networks publicly available on the web. a checklist containing 9 main criter...

Social network items have been included in several cross-national surveys (e.g., Generations and Gender Programme, European Quality of Life Survey, International Social Survey Programme). In these surveys, several different methods and questionnaire items are applied to measure similar or identical constructs. These methods are the name generator method and the simplified role relation method. ...