Conference Publication Details
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Cummins, R; O'Riordan, C
Irish Conference on Artificial Intelligence and Cognitive Science
The Effect of Query Length on Normalisation in Information Retrieval
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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 schemes. Furthermore, it has been shown in various studies that the most optimal level of normalisation to apply is correlated with query length. In this paper, we confirm this correlation and present experiments which investigates and explains the effect of query length on normalisation.
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