Boolean logic

(redirected from Boolean operator)
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.

Boolean logic

 [boo´le-an]
an algebra that permits operations on sets of elements; it is used in online literature searches. The principal Boolean operators are AND (intersection), OR (union), and NOT (difference).
Mentioned in ?
References in periodicals archive ?
The weight for such term or for such Boolean operator appears directly after the term or the Boolean operator as ([term.
Using Boolean operators and alternate terminology, the search statement for genetic testing to determine paternity would be constructed as (blood OR genetic) AND (test OR testing) AND paternity.
Search engines use sophisticated indexing of intranet pages, databases and archives, coupled with Boolean operators.
Terms can be combined using Boolean operators to refine the search.
Employ efficient database searching techniques, such as use of Boolean operators, truncation, phrase searching, nesting, and field-specific searching.
How frequently are Boolean operators used during Web searching?
Searches can be made by author, title, key-word, subject or series and the normal Boolean operators are available for complex searching (curiously the search language is American, but that is presumably something to do with the software).
Most offer excellent opportunities to use Boolean operators (i.
Semantics that are unique to source code can filter results, Boolean operators support rich combinatorics, and ranking helps make sure the result set is relevant and precise.
The Boolean operators AND, OR, NOT, NEAR 5, NEAR 10, and NEAR 25 are offered through the advanced search.
Locayta Search Mobile comes with many intelligent capabilities including; word-stemming, automatic spell correction, Boolean operators, field weighting, sorting, filtering, synonyms, facet generation, stop words, 'more like this', threshold cut-offs and Locayta's unique Balance Factor technology.
In three modules, it introduces basic IL concepts such as types of sources, popular and scholarly publications, search strategies and Boolean operators.