Query Transformations for Result Merging
Shriphani Palakodety, Jamie Callan · Text REtrieval Conference · 2014
Abstract : This paper describes Carnegie Mellon University's entry at the TREC 2014 Federated Web Search track (FedWeb14). Federated search pipelines typically have two components: (i) resource-selection, and (ii) result-merging. This work documents experiments to modify queries to merge results in the federated-search pipeline. Approaches from previous attempts at solving this problem involved custom query- document similarity scores or rank-combination methods. In this document, we explore how term-dependence models and query expansion strategies influence result-merging.