David Carmel, Elad Yom-Tov, Adam Darlow, Dan Pelleg: What Makes A Query Difficult?, SIGIR 2006: 390-397.
Vishwa Vinay, Ingemar J. Cox, Natasa Milic-Frayling, Ken Wood: On Ranking the Effectiveness of Searches, SIGIR 2006: 398-404.
Yun Zhou, Bruce Croft: Query Performance Prediction in Web Search Environments, SIGIR 2007.
Saturday, March 24, 2007
Estimating Query Hardness
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