Seeking stable clusters in the blogosphere

Abstract

The popularity of blogs has been increasing dramatically over the last couple of years. As topics evolve in the blogosphere, keywords align together and form the heart of various stories. Intuitively we expect that in certain contexts when there is a lot of discussion on a specific topic or event a set of keywords will be correlated: the keywords in the set will frequently appear together (pair-wise or in conjunction) forming a cluster. Note that such keyword clusters are temporal (associated with specific time periods) and transient. As