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Different presentations of candidate expansion terms have not been f ,~lly 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, organisad in a general to apecific manner, and visualised by cascade menus. To evaluate the effactiveness of the presentation, a user test was carried outdoi:10.1145/508791.508916 dblp:conf/sac/JohoCSB02 fatcat:hxypy6ajjjfevjttbzudhn7nzy