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Introduction to Expert Online Searching Techniques. By Roberta Tipton. - PowerPoint PPT Presentation
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Introduction to Expert Online Searching Techniques
By Roberta Tipton
University of Salford Press Office. Salford Business School Launches Unique Open Access Online Course. 2013. Flickr Commons. Web. 11 July 2014. <https://www.flickr.com/photos/salforduniversity/9718507502/>Photo not altered. Creative Commons License at <http://creativecommons.org/licenses/by/2.0/legalcode>
What Is a Database?
da·ta·basenoun \ˈdā-tə-ˌbās, ˈda- also ˈdä-\
: a usually large collection of data organized especially for rapid search and retrieval (as by a computer)
"Database." Merriam-Webster.com. Merriam-Webster, 2014. Web. 11 July 2014. <http://www.merriam-webster.com/dictionary/database>.
Databases Are Made Up of Records Hryck, Todd. Put Your Records On. 2007. Flickr Commons. Web. 11 July 2014. Digital Image <https://www.flickr.com/photos/hryckowian/2176673733/> Photo not altered. Creative Commons License at <http://creativecommons.org/licenses/by/2.0/legalcode>
About Records
• Records represent real items.• Records are not the real item itself (in most
cases), although they might be linked.• Records are formatted.• Records are made up of pieces called fields.• Records are more easily searchable than the
real item.
Records Are Made Up of Fields Guy, Romain. Waves. 2006. Flickr Commons. Web. 11 July 2014. Digital Image.
https://www.flickr.com/photos/romainguy/289881919/Photo not altered. Creative Commons license at <http://creativecommons.org/licenses/by/2.0/legalcode>
What Does a Record Look Like? (Google)
· Invisible Web - The University of California Berkeley Librarieswww.lib.berkeley.edu/.../Invi...University of California, Berkeley LibrariesMay 8, 2012 - The Invisible Web - what it is and is not, definitions. How to find it. Where it fits in your search strategy.· Deep Web - Wikipedia, the free encyclopediaen.wikipedia.org/wiki/Deep_WebWikipediaDeep Web (also called the Deepnet, Invisible Web, or Hidden Web) is World Wide Web content that is not part of the Surface Web, which is indexed by standard ...
What Does a Record Look Like? (Library Catalog)
Personal author: Pariser, Eli.
Title: The filter bubble : what the Internet is hiding from you / Eli Pariser.
Publication info: New York : Penguin Press, 2011. Physical descrip: 294 p. ; 22 cm.
Contents:
The race for relevance -- The user is the content -- The Adderall society -- The you loop -- The public is irrelevant -- Hello, world! -- What you want, whether you want it or not -- Escape from the city of ghettos.
Subject: Invisible Web. Subject: Information organization. Subject: Semantic Web--Social aspects. Subject: World Wide Web--Subject access. Subject: Internet--Censorship.
These Records All Look Different, But…
• They are all collected as the result of a search.• They are formatted.• They are made up of fields.• They represent the content in the database.
Searching Databases McBride, Taylor. “Searching.” 2011. Flickr Commons. Web. 11 July 2014. Digital image. <https://www.flickr.com/photos/taylor-mcbride/5367077863/> Image not altered. Creative Commons license at <https://creativecommons.org/licenses/by/2.0/legalcode>
Characteristics of Useful Keywords
• The rarest words• The most specific words• As many forms of the words as you know
“Little Words”, Called “Stop Words”, Are Often Not Searched
A, an, of, the, from...
In, on……and so forth
Why Not Use Stop Words?
Stop words are so common in human language that they do not add any meaning to an online search. Google parses full sentences and filters out stop words, but other search software requires you to do the filtering.
Truncation Marks Imply “Or”
architect*(?, #, $) yields
architect
architects
architecture
architectural
Library Databases Often Include Descriptors or Subject Headings as
Well as Simple KeywordsPersonal author:
Pariser, Eli.
Title: The filter bubble : what the Internet is hiding from you / Eli Pariser.
Publication info:
New York : Penguin Press, 2011.
Physical descrip:
294 p. ; 22 cm.
Contents:
The race for relevance -- The user is the content -- The Adderall society -- The you loop -- The public is irrelevant -- Hello, world! -- What you want, whether you want it or not -- Escape from the city of ghettos.
Subject: Invisible Web.
Subject: Information organization.
Subject: Semantic Web--Social aspects.
Subject: World Wide Web--Subject access.
Subject: Internet--Censorship.