Lecture #14 Presentations by Chris Zachor and Daniel Ramos

Chris Zachor’s lecture is about Network analysis of the SourceForge community. At the beginning, he did an introduction of open source software and the SourceForge Community with a website to help promote collaboration between developers of OS projects, a repository for projects, developers and Users. Multiple networks can be formed from the SourceForge community. Project-Developer network, Developer network and project network are given as examples in this lecture. Then is the instruction of related work including Co-authorship between department at UCD (University College Dublin) and network analysis of SourceForge which is done by Gao and Madey. While previous studies were focused on growth and why the process is a success, this study will focus on how key developers and groups play a part in creating popular software.

The title of Daniel Ramos’e lecture is The Rise of Smart Devices on Mobility in Wireless Network. The lecture started with the definition of wired network and wireless network and the main characteristic of both of them. Structure is fixed for wired network and structure is dynamic and changes often for wireless network. The wireless network has lower bandwidth and quality of service than wired networks and the environment can be affected easily. Following is an instruction of Mobile Smart Devices. Mobility studies are important because of the quality of service, bandwidth utilization and roaming problems. Previous studies are focused on simulated mobility models and real data. Study about Modeling Roaming in Large-scale Wireless Networks using Real Measurement and Access and mobility of wireless Personal Digital Assistants (PDA) users have been done. Evolutionary topology model and campus waypoint model were used in the studies. As the conclusion of this lecture we know that studying mobility is important to network protocol evolution, highly mobile devices are already changing both computer and cellular network usage and more actual data and realistic models are needed as the conclusion of the lecture.