I discuss the function of social identity signaling in facilitating cooperative group formation, and how the nature of that function changes with the structure of social organization. I propose that signals of social identity facilitate assortment for successful coordination in large-scale societies, and that the multidimensional, context-dependent nature of social identity is crucial for succe...

Though representing a promising approach for personalization, targeting, and recommendation, aggregation of user profiles from multiple social networks will inevitably incur a serious privacy leakage issue. In this paper, we propose a Novel Heterogeneous De-anonymization Scheme (NHDS) aiming at de-anonymizing heterogeneous social networks. NHDS firstly leverages the network graph structure to s...

The central goal of educational datamining is to derive crucial pedagogical insights from student, course, and tutorial data. Real-world educational datasets are complex and heterogeneous comprising relational structures, social connections, demographic information, and long-term assignments. In this paper I describe Augmented Graph Grammars a robust formalism for graph rules that provides a na...

With the rapid expansion of the Internet and WWW, the problem of analyzing social media data has received an increasing amount of attention in the past decade. The boom in social media platforms offers many possibilities to study human collective behavior and interactions on an unprecedented scale. In the past, much work has been done on the problem of learning from networked data with homogene...

organization theory is a discipline on the boundary between economics of organizations, sociology of organizations, management and political science. she is interested in organizations, both commercial and non-commercial, in all their diversity (company, hospital, union, organization, administration, conventions). it analyzes their functioning, structure and development for the purpose of bette...