7/30/2023 0 Comments Boolean search examples![]() Pull out the most key words from your thesis statement:.College students who use advanced search techniques have an increased tendency to produce better scholarly work for their coursework.To advance your keyword search, follow these steps: Using these operators serves to better your search in a number of ways, and if you combine Boolean operators with advanced keyword searching and the tools above, you will get the best resources for your topic. You'll also notice how powerful this kind of searching turns out to be. ![]() This might seem like a lot, but the more that you use these tools, the more comfortable you will become with searching in this way. In the above example our intent may have been articles that focus on AIDS in other parts of the world, but an article about AIDS in the US that has the sentence: "AIDS was first discovered in Africa" will not show up. The third removes Africa from the results and only shows those AIDS articles that don't use the term Africa at all. This can be useful if you topic has multiple terms that could describe it. The second brings up articles with either AIDS or Africa but not necessarily both (you might end up with articles about cheetahs). The first example will provide only articles that contain AIDS and Africa in them, which helps to narrow the focus of your search. NOT results will include the first terms, but not the second (AIDS NOT Africa).OR generates results that contain EITHER term (e.g.AND will produce results that contain BOTH terms (e.g.At this point I really don't want to know anything about scholarships.These three operators allow you to combine search terms and search more efficiently Query 3: I need information about financial aid for college. (Financial aid OR scholarships) AND (college OR university) AND application Narrower focus: financial aid AND college AND applicationĮxplanation: All three terms have to be presentįinancial aid AND (college OR university) You need both words present, otherwise you might retrieve documents about types of financial aid which are irrelevant to this information need. Query 2: I need information about financial aid for collegeĮxplanation: You want only those documents with both terms present If you type in "college" alone, only documents containing that word will be retrieved, but clearly, documents containing either of the two words might be relevant. Example Queries: Query 1: I need information about collegeĮxplanation: You need documents with either term present ![]() ![]() These Boolean connectors (AND, OR, NOT) and the parentheses determine how the computer performs the search. Finally, you can exclude an idea or concept using the operator NOT. You can expand a search concept, combining terms with OR you can narrow a focus by requiring that two or more terms must be present using AND. ![]() To understand the Boolean equivalent "+" and "-" used in Web search engines, see below.īoolean logic establishes specific relationships among search terms. (dogs or cats) and (training or obedience) not puppies (dogs or cats) and (training or obedience) Boolean searching allows you to combine search terms in specific ways for effective matches. Information databases, including Web search engines, rely on matching terms that capture the idea of an information need (=keywords). It is a database search method based on the principles of Boolean logic, originally developed by the British mathematician George Boole in the mid 19th century. Boolean Searching in Library Databases and on the Web What is Boolean Searching? ![]()
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