… we propose using query-level loss functions in learning of ranking functions. We discuss the
basic properties that a query-level loss function should have and propose a query-level loss …

… is automatic query expansion (AQE), whereby the user’s original query is augmented by …
in the information retrieval community but it is only in the last years that it has reached a level of …

… In Table 10 we present significance levels at which query-specific clustering outperforms
IFS for the WSJ collection and for β=1. The single link method did not significantly outperform …

… queries at several levels: twice, one-half and one-quarter. Table 8 shows that the more
weight is given to the Boolean query evidence, the worse the overall retrieval performance, …

… of both information seeking and IR interaction levels of … disambiguation as a way of addressing
issues of query level … of contextual information about users in order to improve retrieval …

… In this study, query reformulation represents the process of information problem articulation,
and it … , including three Level 2 variables at the session level and two Level 1 variables at the …

… Query reformulation is thus an essential element in understanding interactions in the information
retrieval … of the three levels of interactions on patterns of query reformulation on the user …

… for an experiment on interactive query expansion using relevance feedback … query expansion
(AQE) and interactive query expansion (IQE). In AQE, the searchers formed the initial query…

… This allowed comparison of retrieval performance of different levels of query combination,
and comparison of retrieval performance of combined queries with uncombined. Data fusion …

… , which provided patient queries and a large medical document collection for patient centred
medical information retrieval technique development. We categorise the queries based on …