9/4/2023 0 Comments Boolean search method![]() Example: “cats NEAR kittens” would return only results that contain both terms in close proximity to each other. ![]() NEAR means that the search engine searches for information related to all keywords found within a certain number of words (which can vary depending on search algorithms) from each other.Example: “cats OR kittens” broadens the search operation by combining all the terms, and returning results that contain either term. An example of a Candidate search that utilizes Boolean logic. OR means that the search engine will search for information related to all keywords the user has typed. An image that highlights the proper technique for running a Boolean search within a search form.You can increase your sample of publications quite efficiently using these methods. Example: “cats NOT kittens” means that it returns only results with the term “cats” that do not contain the term “kittens” as well. Snowball and citation search The goal of snowball and citation search is to find additional relevant publications which are in the referencelist of the start-article (snowball) or cite the start-article themselves (citation search). This is possible through Boolean operators such as AND, OR, NOT, and NEAR, as well as the symbols + (add) and - (subtract). Example: If the user specifies “cats AND kittens,” then it returns only results containing both terms. A Boolean search, in the context of a search engine, is a type of search where you can use special words or symbols to limit, widen, or define your search. When using the Boolean search method, one can either use the words or their equivalent mathematical symbol, as given below: A Boolean search is also known as a Boolean query.Ī Boolean search, which is derived from the famous Boolean logic developed by George Boole, an English mathematician in the 19th century, is useful in internet and database searches.
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