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Sparck Jones has carried on this work using measures of association between keywords based on their frequency of co occurrence that is,the frequency with which any two keywords occur together in the same document
...The term information structure for want of better words covers specifically a logical organisation of information,such as document representatives,for the purpose of information retrieval
...The organisation of these files is produced by an automatic classification method
...Evaluation of retrieval systems has proved extremely difficult
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Eight THE FUTURE Future research In the preceding chapters I have tried to bring together some of the more elaborate tools that are used during the design of an experimental information retrieval system
...1
...Substantial evidence that large document collections can be handled successfully by means of automatic classification will encourage new work into ways of structuring such collections
...It is therefore of some importance that using the kind of data already in existence,that is using document descriptions in terms of keywords,we establish that document clustering on large document collections can be both effective and efficient
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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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that in IR we are searching for relevant documents as opposed to exactly matching items
...Many automatic information retrieval systems are experimental
...Many of the techniques I shall discuss will not have proved themselves incontrovertibly superior to all other techniques,but they have promise and their promise will only be realised when they are understood
...My aim throughout has been to give a complete coverage of the more important ideas current in various special areas of information retrieval
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DAMERAU,F
...DAMERAU,F
...DATE,C
...DATTOLA,R
...DATTOLA,R
...DE FINETTI,B
...DENNIS,S
...DISISS,Design of information systems in the social sciences
...DODD,G
...DOROFEYUK,A
...DOYLE,L
...DOYLE,L
...DOYLE,L
...DOYLE,L
...DOYLE,L
...DOYLE,L
...DUDA,R
...EDMUNDSON,H
...EFRON,B
...EIN DOR,P
...ELLIS,B
...ETZWEILER,L
...EVERITT,B
...FAIRTHORNE,R
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LUHN,H
...LUM,V
...LUM,V
...McCARN,D
...McDONELL,K
...MACNAUGHTON SMITH,P
...MacQUEEN,J
...MANOLA,F
...MARON,M
...MARON,M
...MARON,M
...MARON,M
...MARON,M
...MARSCHAK,J
...MEALEY,G
...Medline Reference Manual,Medlars Management Section,Bibliographic Services Division,National Library of Medicine
...MILLER,W
...MINKER,J
...MINSKY,M
...MONTGOMERY,C
...MORRIS,R
...MURRAY,D
...MURRAY,D
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NEEDHAM,R
...NEEDHAM,R
...NEGOITA,C
...NEGOITA,C
...NEGOITA,C
...NEGUS,A
...NILSSON,N
...ODDY,R
...ÖRE,0
...OSBORNE,M
...OSTEYEE,D
...PAGE,E
...PAICE,C
...PATT,Y
...PREPARATA,F
...PRYWES,N
...RADECKI,T
...RAJSKI,C
...RICKMAN,J
...RIEBER,S
...RIVEST,R
...ROBERTS,D
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