Size Doesn't Always Matter: Exploiting PageRank for Query Routing in Distributed IR

PageRank authority scores have proven to be a powerful ingredient to local document scoring. This paper presents several possible strategies to incorporate authority scores into that process. We showcase JXP, an authority score measure that converges to true global PageRank scores in a distributed environment. We develop a hybrid strategy that leverages from the combined power of authority scores and other popular query routing measures, such as CORI. We present preliminary experimental results that support our hypothesis that authority scores can be highly beneficial to query routing