Estimating the query difficulty for information retrieval

@inproceedings{Carmel2010EstimatingTQ,
  title={Estimating the query difficulty for information retrieval},
  author={David Carmel and Elad Yom-Tov},
  booktitle={SIGIR},
  year={2010}
}
Many information retrieval (IR) systems suffer from a radical variance in performance when responding to users' queries. Even for systems that succeed very well on average, the quality of results returned for some of the queries is poor. Thus, it is desirable that IR systems will be able to identify "difficult" queries in order to handle them properly. Understanding why some queries are inherently more difficult than others is essential for IR, and a good answer to this important question will… CONTINUE READING
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