Joho, H., Coverson, C., Sanderson, M. et al. (1 more author) (2002) Hierarchical presentation of expansion terms. In: Proceedings of the 2002 ACM Symposium on Applied Computing. 2002 ACM Symposium on Applied Computing, March 11 - 14, 2002, Madrid, Spain. ACM , New York, USA , pp. 645-649. ISBN 1-58113-445-2
Different presentations of candidate expansion terms have not been fully explored in interactive query expansion (IQE). Most existing systems that offer an IQE facility use a list form of presentation. This paper examines an hierarchical presentation of the expansion terms which are automatically generated from a set of retrieved documents, organised in a general to specific manner, and visualised by cascade menus. To evaluate the effectiveness of the presentation, a user test was carried out to compare the hierarchical form with the conventional list form. This shows that users of the hierarchy can complete the expansion task in less time and with fewer terms over those using the lists. Relations between initial query terms and selected expansion terms were also investigated.
|Keywords:||information retrieval, interactive query expansion, concept hierarchies|
|Institution:||The University of Sheffield|
|Academic Units:||The University of Sheffield > Faculty of Social Sciences (Sheffield) > Information School (Sheffield)|
|Depositing User:||Repository Officer|
|Date Deposited:||28 Nov 2008 12:53|
|Last Modified:||28 Nov 2008 12:53|