1. Midterm Project Guide Prof. Dr. Daning Hu Department of Informatics University of Zurich Oct 23th, 2012

2. 2 Outline Project overview Network Data Processing (20%) Node Level Analysis (20%) Group Level Analysis (10%) Network Level Analysis (30%) Discussions and Conclusions (20%)

3. Midterm Project Overview The Midterm Project aims to analyze an real-world open source developer collaboration network. It consists of  Relational data processing  Two-mode to One-mode network construction  Node-level analysis  Group-level analysis  Network-level analysis The deliverable is an project report which should follow the styple of the attached AMCIS conference paper.

4. Relational Data Processing The goal of this step is to build a Midterm database based on the given raw data files. You need to  Create a midterm database  Import the given files into the database  Make sure all data items are in the appropriate data format. Most importantly  You need to construct a one-mode collaboration network from a two mode network data table.

5. Node Level Analysis Node Centrality Analysis You need to report the top 10 developers in terms of their  Degrees  Betweeness  Closeness Also please explain what these measures mean in the context of this online community.

6. Group Level Analysis Identify and visualize the largest component in the given network (*Use Netdraw Egonet function). Describe its size and other characteristics. You need to report  The number of components  Size of the largest component You also need to use Netdraw to locate cutpoints. *You can and should use netdraw anytime the analysis requires.

7. Network Level Analysis Analyze the whole network using UCINet and calculate all the following network measures. Compare them with the features of the three network topologies. You need to report  Size of the network  Average degree  Average path length  Clustering coefficient  Degree distribution (Excel figures and functions) You need to compare the measures against the three network models and categorize this Ohloh OSS collaboration network.

8. Conclusion You need to provide a discussion section to provide possible explanations of the analysis results. In addition, you may also provide hypotheses you may want to test in the future based on your findings from the network. Overall this midterm project aims to provide you hands-on experiences in analyzing real-world social networks in a systematic manner. You may use the published slides and tutorials as your guide to finish the project.