![]() Which means it can significantly speed up candidate acquisition. It’s a very important tool in recruitment for two main reasons: firstly, it gives candidates much more control during when searching for work on job boards and job sites, and, secondly, because it helps recruiters identify qualified candidates from a CV database much more quickly. In fact, without Boole’s work, Google may not exist in the way we know it today. Yet, in the modern era, these laws have become the foundation stones for digital technology. In fact, the basic principles were conceived by an English mathematician called George Boole in 1847 as detailed in his book ‘ The Mathematical Analysis of Logic’. All are used in combination with primary keywords in order to fine-tune a search for quicker, more accurate results.īoolean Search isn’t new. Brackets, quotation marks and asterisks are other tools used when performing a Boolean Search. There are three main modifiers: ‘AND’, ‘OR’ and ‘NOT’. This eliminates ambiguity for the search engine and ensures that in its results maiden must exist, either unicorn and pegasus may exist, but that the term "tapestry" should not exist.Boolean Search is a type of search that allows users to combine keywords with ‘modifiers’ or ‘operators’ to limit, widen or define results. ![]() By grouping the terms this way, you are telling the search engine which terms must be present and which terms are optional. In the above example, (unicorn OR Pegasus) is a sub-query. When your search query includes multiple Boolean operators, parenthesis are important to help the search engine group them in a way that is relevant for your research. ![]() This set of results is smaller than the previous one, and no longer includes any content that includes the word, "tapestry." Using NOT in queries let the search engine know that we are not interested in the subsequent terms of the search. If you are seeing too many results that are not relevant to their research, finding a common pattern or theme in those results in which you might exclude a term, might be helpful.įor example, if you were only looking for scholarship on magical creatures that mentions unicorns or Pegasus, but do not want to see any results that include tapestries, the following query would work: Using the NOT Boolean operator will narrow your search results by telling the search engine to exclude results that have a particular search term present. The OR operator also works well if you want to include multiple synonyms in the same search. Using the OR Boolean operator will expand your search results by telling the search engine to return results that have EITHER/ANY of the search terms present.įor exampe, if you wanted to expand your results to include texts that mention unicorns and include results that mention Pegasus as well, the OR operator would expand that search:Īfter using the OR operator, you will return an expanded list of results to review. This will decrease the number of results to review and help you more easily find a relevant article.Īll 1,386 total results will include both the term “unicorn” and the term “maiden.” If, for example, you are interested in researching the claim that unicorns appear to maidens, you might refine this set of results further by adding the operator AND along with "maiden” to your "unicorn" search. Learn more about the AND, OR, and NOT operators, and how they work on JSTOR, below:ĪND is the default Boolean operator, and using it will narrow your search results by telling the search engine to return results that have BOTH/ALL search terms present.įor example, when you search JSTOR for scholarly content using only the search term "unicorn," the search yields a very large set of results. To use them, Boolean operators must be typed in all capital letters. How to use Boolean logic to narrow your searchīoolean operators help search engines use logic to limit, narrow, or broaden your search results in order to surface content that is most relevant to your search. ![]()
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