Document and Query Expansion Models for Blog Distillation

摘要

This paper presents the CMU submission to the 2008 TREC blog distillation track. Similar to last year's experiments, we evaluate different retrieval models and apply a query expansion method that leverages the link structure in Wikipedia. We also explore using a corpus that combines several different representations of the documents, using both the feed XML and permalink HTML, and apply initial experiments with spam filtering.