Search Result Diversification (Foundations and Trends (R) in Information Retrieval) - Softcover

Santos, Rodrygo L. T.; Macdonald, Craig; Ounis, Iadh

Softcover

ISBN 10: 1680830007 ISBN 13: 9781680830002

Publisher: now publishers Inc, 2015

Synopsis

Ranking in information retrieval has been traditionally approached as a pursuit of relevant information, under the assumption that the users' information needs are unambiguously conveyed by their submitted queries. Nevertheless, as an inherently limited representation of a more complex information need, every query can arguably be considered ambiguous to some extent. In order to tackle query ambiguity, search result diversification approaches have recently been proposed to produce rankings aimed to satisfy the multiple possible information needs underlying a query. This primer on the topic reviews the published literature on search result diversification. In particular, it discusses the motivations for diversifying the search results for an ambiguous query and provides a formal definition of the search result diversification problem. In addition, Search Result Diversification describes the most successful approaches in the literature for producing and evaluating diversity in multiple search domains. Finally, it also discusses recent advances as well as open research directions in the field of search result diversification.

Edition details

• Publisher: now publishers Inc
• Publication date: 2015
• Language: English
• ISBN 10: 1680830007
• ISBN 13: 9781680830002
• Binding: Paperback
• Number of pages: 110