![]() ![]() “Television and (violence or aggression)” here, the search engine will look first for items that contain either of the terms "violence" or "aggression" it will then narrow down those search results even further to contain only the records that have the word television as well as either of the other 2 terms. The addition of parentheses enables the searcher to specify which segment of the search string is to be evaluated first. ![]() “Television and broadcasting not video” here the search string would retrieve records that had both the terms "television" and "broadcasting" but would eliminate those records if they also contained the word "video". “Violence and conflict and aggression” the search string would retrieve any record that contained all of those 3 words however, the search would not retrieve any record that had only 2 of the 3 terms. Used to narrow or restrict search results. “Violence or conflict or aggression” this search string would retrieve any record that held any of those 3 words. AND Using and between words requires that both words must be present somewhere in the same document or result. Adopting a Boolean search strategy using Boolean operators, the words AND, OR and NOT in capital letters, and quotation marks or parenthesis when searching for information can often help you obtain more targeted responses. Used to expand or broaden search results to include synonyms and related terms. Boolean Operators Based on George Boules algebraic system of logic, Boolean operators allow the combination of words to refine a search. Boolean operators are useful in sorting through the large number of profiles, resumes, and pages available online. The method uses Boolean operators which are simple words to define relationships between keywords, resulting in a more focused search result. Why use Boolean operators To focus a search, particularly when your topic contains multiple search terms. A Boolean search narrows or expands an internet search to yield better results, done often by including operators between keywords, like AND, OR and NOT. The three basic boolean operators are: AND, OR, and NOT. They connect your search words together to either narrow or broaden your set of results. These symbols are also known as logical operators and are mainly used in. The operators can be expressed in symbols as well as in words. They specify and/or link together certain conditions. Boolean searching A method of combining concepts in a search which allows the searcher to narrow or broaden the focus of a search boolean logic uses 3 logical commands or "operators": AND, OR and NOT. Durbin Boolean search is a method for searching websites to limit your results. Boolean operators form the basis of mathematical sets and database logic. Boolean operators are used to write logical expressions that test whether a specified condition is true or false. ![]()
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