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Document length normalisation is known to be a difficult problem in IR, as tuning is often needed to overcome the collection dependence problem known to affect many normalisation s...
We analyse query length, and fit power-law and Poisson distributions to four different query sets. We provide a practical model for query length, based on the truncation of a Pois...
Our focus this year was to investigate methods for increasing query length in interactive information searching in the Web context, and to see if these methods led to changes in t...
Nicholas J. Belkin, Colleen Cool, J. Jeng, Amymari...
Query length in best-match information retrieval (IR) systems is well known to be positively related to effectiveness in the IR task, when measured in experimental, non-interactiv...
Nicholas J. Belkin, Diane Kelly, G. Kim, Ja-Young ...
In this paper we investigate the effectiveness of a documentindependent technique for eliciting feedback from users about their information problems. We propose that such a techni...