Dear friends,
       Find herewith some important facts about Information Retrieval Technique namely "Indexing System". It will be very useful for preparing NET/SET Exam.
- The term "Information Retrieval" was coined by Colvin Mooers.
 
- Index and Indexing services comes under Documentation Service.
 
- The term "search strategy" is used in Indexing.
 
- Chain Indexing was developed by S.R.Ranganathan
 
- Frank shepard  was the originator of citation Index.
 
- Systematic Indexing  was devised by J.E.L.Farradane.
 
- co-ordinate Indexing was devised by Derek Austin.
 
- Uniterm Indexing was developed by Mortimer Taube in 1953.
 
- KWIC Indexing system was developed by H.P.Luhn in 1958
 
- KWIC Indexing system is an example of controlled Indexing Language.
 
- KWIC Indexing technique is based on Full Text.
 
- KWIC Indexing system is being used by American Chemical Society for Chemical Title.
 
- PRECIS(Preserved Context Indexing System) was developed by Derek Austin in 1974.
 
- PRECIS first adopted for subject heading in BNB ( British National Bibliography )
 
- In PRECIS ,interposed operators is represented by Roman small.
 
- POPSI ( Postulate based permuted subject Indexing system ) is invented by Ganesh Bhattacharya in 1964
 
- Eugene Garfield is related with Science Citation Index(SCI)
 
- SCI was broughtout in 1964 by ISI (INSTITUTE FOR SCIENTIFIC INFORMATION,)PHILADEPHIA
 
- Social Science Citation Index( SSCI) was broughtout in the year 1973
 
- The elementary categories of POPSI are DEAPM.