The University of North
Carolina at Chapel Hill
The JOMC Digital Research Initiative
This site last updated September 7, 1996
Are
the Good Old Library Cards
on Their Way Out?
Today,
the field of information retrieval focuses on automated techniques, like
keyword indexing, for searching large databases (such as library
catalogs or any list or itemized display, as of titles, course offerings,
or articles for exhibition or sale, usually including descriptive information
or illustrations)
WAYS TO LIMIT A SEARCH
The Vertical Bar (
| )
BY DATE:
t=Mexico|d=1992
t=Mexico|d=199
t=Mexico|d=19
COMBINING KEYWORDS
The Boolean Search
-
What's Boolean
Search ?
-
English mathematician
-
Algebra of logic, Boolean Algebra
AND - Dogs AND
Cats
OR - Dogs OR
Cats
NOT - Dogs OR
Cats NOT Bulldogs
Proximity operators
within [ w ]
- fi gone w2
wind
(finds gone with the wind, gone on the wind
but not wind on the gone)
Fixed order with up to two (2) intervening words
near [ n ]
- fi cancer n4
nutrition
(finds nutrition and the problem of cancer, cancer and the crisis of nutrition)
In any order with up to four (4) intervening words
Nesting
fi (radio or mass media)
and women
Truncation
Variations of word
stem
fi comput?
(finds computing compute, computer etc.)
Substitution of "wild
card" symbol
fi wom#n
(finds women, woman)
fi theat##
(finds theater, theatre but not theaters)
This web page is maintained by and for students of Electronic
Information Sources, as well as for any other interested person. If
you have questions or comments, please email to: Deb
Aikat