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influence the choice of [classification]method and the results obtained
...There are two main areas of application of classification methods in IR:1 keyword clustering;2 document clustering
...The first area is very well dealt with in a recent book by Sparck Jones [5]...Good [6]:We define the organisation as the grouping together of items e
...The efficiency of document clustering has been emphasised by |
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searching
...One last distinction,the vocabulary of an index language may be controlled or uncontrolled
...The index language which comes out of the conflation algorithm in the previous section may be described as uncontrolled,post coordinate and derived
...There is much controversy about the kind of index language which is best for document retrieval
...Probably the most substantial evidence for automatic indexing has come out of the SMART Project 1966
...The document representatives used by the SMART project are more sophisticated than just the lists of stems extracted by conflation
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document clustering,search strategies,and such like to work inside a computer
...Bibliographic remarks In recent years a vast literature on automatic classification has been generated
...A book and a report on cluster analysis with a computational emphasis are Anderberg [59]...Two papers worth singling out are Sibson [65]...Much of the early work in document clustering was done on the SMART project
...There are a number of areas in IR where automatic classification is used which have not been touched on in this chapter
...One further interesting area of application of clustering techniques is in the clustering of citation graphs
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