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Boolean Operators. AND, OR, NOT. Presented by Brenda Levert LM 565:91 Jan. 30, 2010. Boolean Logic. Relationship between search terms Named after George Boole You can use Boolean Logic to refine your search. Boolean Logic. Boys AND Blue shirts ___ ? __
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Boolean Operators AND, OR, NOT Presented by Brenda Levert LM 565:91 Jan. 30, 2010
Boolean Logic • Relationship between search terms • Named after George Boole • You can use Boolean Logic to refine your search
Boolean Logic • Boys AND Blue shirts ___?__ • Boys OR Blue shirts ___?__ 1 6
Class Activity 1. Boys and Green shirts ___?___ 2. Boys or Green shirts ___?___
Boolean Operators The Boolean Machine
Boolean Logic • Quotation marks require the search tool to treat your keywords as a phrase. Example: “Benjamin Franklin”
Boolean Operators AND: Used to combine two keywords. Both must be present in the results Example • Television AND • Violence
Other Boolean Operators OR: Requires either term to be present in the search results Example: • Colleges OR Universities Colleges Universities OR
Other Boolean Operators NOT: Excludes terms Example: college NOT university college university
Other Boolean Operators (cats OR felines) AND behavior
Truncation (*) symbol • Comput* • compute • computer • computing • computation
Review AND OR NOT
Reference • ADAM. (n.d.) . Boolean Searching. Retrieved January 24, 2010 from http://adam.ac.uk/info/boolean.html#bool • Delaware Tech Library. (2004). Boolean Searching and Truncation. Retrieved January 26, 2010 from http://www.library.dtcc.edu/wilmlib/BooleanTruncation%5B1%5D.pdf • Online Library Learning. Center. (n.d.). Boolean Search. Retrieved January 25, 2010 from http://www.usg.edu/galileo/skills/unit04/primer04_08.phtml • Paul Meek Library. (n.d.). Boolean Searching on the Internet. Retrieved January 26 from http://www.utm.edu/departments/acadpro/library/information_pages/boolean.html#Boolean Searching on the Internet • Schrock, Rockwell. (n.d). The Boolean Machine. Retrieved January 27, 2010 from http://kathyschrock.net/rbs3K/boolean/ • All Images Microsoft Clip Art