| 91 |
A description of the use of a sequential file in an on line environment may be found in Negus and Hall [36]...Work on tree structures in IR goes back a long way as illustrated by the early papers by Salton [43]where not only methods of construction are discussed but also techniques of reorganisation
...More recently a special kind of tree,called a trie,has attracted attention
...The use of hashing in document retrieval is dealt with in Higgins and Smith [50]...It has become fashionable to refer to document collections which |
