number within communities) • Idea: – dense internal connections between the nodes within modules – sparse connections between different modules • Work as a measurement for the quality of partitions and an objective function to optimize.
based on modularity optimization • Louvain algorithm consists of two phases 1. Look for small communities by optimizing modularity locally 2. Aggregate vertices in the same community and build a new network whose vertices are the communities 3. Repeat until a maximum of modularity is attained
for identification of the plurk • owner – The owner/poster of this plurk • content – The formatted and filtered content, e.g. URL will be turned into text tags and emoticons will be filtered etc. • content_raw – The raw content as user entered it • posted – The date this plurk was posted in ISODate format
to find interesting topics and relationship • Develop a new scalable crawling framework based on ZeroMQ • Patch the plurk-oauth library • Build a website for visualizing interest and relationship by D3.js