Activities and Trends Analytics in a Widget based PLE using Semantic Technologies Topics: Context Dependent Learning; e-Learning Hardware and Software; e-Learning Platforms, Portals; Metrics and Performance Measurement; Ontologies and Meta-Data Standards; Standards and Interoperability; Technology Enhanced Learning; Technology Support for Pervasive Learning; Web-Based Learning, Wikis and Blogs In Proceedings of the 5th International Conference on Computer Supported Education CSEDU - Volume 1, 199-203, 2013 , Aachen, Germany