Narrow or Broad?
Kumaripaba Athukorala, Antti Oulasvirta, Dorota Głowacka, Jilles Vreeken, Giulio Jacucci · 2014
Supporting exploratory search is a very challenging problem, not least because of the dynamic nature of the exercise: both the knowledge and interests of the user are subject to constant change. Moreover, whether the results for a query are informative is strongly subjective. What is informative to one user, is too specific for the other; specificity differs between users depending on their intent and accumulated knowledge about the domain.