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TALON MODULE 4: Performing Effective
Searches in Electronic Databases
Proximity and Adjacency
Proximity and adjacency
searches allow you to specify the location
of your keywords in relation to one another.
Proximity is defined in different ways
in different databases. Usually, proximity requires that the words be located
within x number of words of each other, but they may appear in any order. Sometimes
it requires that the words appear in the same sentence, the same paragraph or
the same field, rather than within x number of words.
Adjacency is a form of proximity, and
it requires that the words be located directly next to each other as a phrase
or with up to x number of words in between them. With adjacency, the words must
be in the specified order.
The operators frequently associated with these concepts are near,
n, with,
w, and adj.
For example, recycling w3 paper will retrieve
all records in which the words recyling and paper occur within three words of
each other in either direction. Thus, you may locate items on "paper recycling,"
as well as "recycling of paper" and "recycling of all paper."
Passive adj smoking will retrieve all records
in which the word passive occurs immediately before the word smoking.
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