IPHITS: An Incremental Latent Topic Model for Link Structure
ABSTRACT The structure of linked documents is dynamic and keeps on changing. Even though different methods have been proposed to exploit
the link structure in identifying hubs and authorities in a set of linked documents, no existing approach can effectively
deal with its changing situation. This paper explores changes in linked documents and proposes an incremental link probabilistic
framework, which we call IPHITS. The model deals with online document streams in a faster, scalable way and uses a novel link
updating technique that can cope with dynamic changes. Experimental results on two different sources of online information
demonstrate the time saving strength of our method. Besides, we make analysis of the stable rankings under small perturbations
to the linkage patterns.