Learning to select rankers

  title={Learning to select rankers},
  author={Niranjan Balasubramanian and James Allan},
Combining evidence from multiple retrieval models has been widely studied in the context of of distributed search, metasearch and rank fusion. Much of the prior work has focused on combining retrieval scores (or the rankings) assigned by different retrieval models or ranking algorithms. In this work, we focus on the problem of choosing between retrieval models using performance estimation. We propose modeling the differences in retrieval performance directly by using rank-time features… CONTINUE READING
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