IR System

1. Purpose of Indexing
&
Information Retrieval System Indexes
Prepared by:
Jane L. Garay

2. General Purposes of Indexing
• To construct representations, of documents in a form that
is suitable to the users to browse .
• To maximize the searching success of the users.
• To minimize the time and effort in finding information.

3. Information Retrieval System Indexes

4. Information Retrieval
Selective, systematic recall of
logically stored information.

5. Purpose of Information Retrieval
Collect and organize information in
one or more subject areas.

6. Information Retrieval System
Set of operations, procedures by which
documentary units are indexed the resulting
records are stored and displayed and so can
be retrieved.

7. 6 Distinct Functions
(1) Acquisition of the necessary and appropriate documents.
(2) Preparation and representation of the content of those
documents.
(3) Coding of the content indicators.

8. (4) Organized storage of those documents and their indicators
in separate files.
(5) Development of operational search strategies .
(6) Physical dissemination of the retrieval results.

9. Acquisition of
documents
Content Analysis
Content
Representation
Coding of Content Functions of an
indicators
Information
Creation of a document
file and a representation
Retrieval System
file
Creation of operational
search strategies
Physical dissemenation
of retrieved results
Stop

10. THANK YOU! 