Similar concepts
Pages with this concept
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behaviour of any one of the components depends in only an aggregate way on the behaviour of the other components
...2
...On the file structure chosen and the way it is used depends the efficiency of an information retrieval system
...Inverted files have been rather popular in IR systems
...There are many more problems in this area which are of interest to IR systems
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...So far fairly simple search strategies have been tried
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The structure of the book The introduction presents some basic background material,demarcates the subject and discusses loosely some of the problems in IR
...The two major chapters are those dealing with automatic classification and evaluation
...Outline Chapter 2:Automatic Text Analysis contains a straightforward discussion of how the text of a document is represented inside a computer
...Chapter 3:Automatic Classification looks at automatic classification methods in general and then takes a deeper look at the use of these methods in information retrieval
...Chapter 4:File Structures here we try and discuss file structures from the point of view of someone primarily interested in information retrieval
...Chapter 5:Search Strategies gives an account of some search strategies when applied to document collections structured in different ways
...Chapter 6:Probabilistic Retrieval describes a formal model for enhancing retrieval effectiveness by using sample information about the |
| 66 |
Four FILE STRUCTURES Introduction This chapter is mainly concerned with the way in which file structures are used in document retrieval
...Logical or physical organisation and data independence There is one important distinction that must be made at the outset when discussing file structures
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| 193 |
BELL,J
...BELNAP,N
...BELNAP,N
...BENTLEY,J
...BENTLEY,J
...BERGE,C
...BERTZISS,A
...BONNER,R
...BONO,P
...BOOKSTEIN,A
...BOOKSTEIN,A
...BOOKSTEIN,A
...BOOKSTEIN,A
...BORKO,H
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...BOULTON,D
...BOULTON,D
...BOX,G
...BROOKES,B
...BURKHARD,W
...BURKHARD,W
...CARROLL,J
...CAWKELL,A
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| 92 |
have been clustered as clustered files
...Some of the work that has been largely ignored in this chapter,but which is nevertheless of importance when considering the implementation of a file structure,is concerned directly with the physical organisation of a storage device in terms of block sizes,etc
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