Some%20Useful%20Search%20Strategies - PowerPoint PPT Presentation

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Some%20Useful%20Search%20Strategies

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Text, image, sound, audio, music, video ... Subjects. Sci & tech, business, news ... Structures ... Yahoo, Kimo. Manual recommendation in index space. AltaVista, ... – PowerPoint PPT presentation

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Title: Some%20Useful%20Search%20Strategies


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Some Useful Search Strategies
  • Building Blocks -gt Analyze and Associate
  • Citation Pearl Growing -gt Find the Hub
  • Interactive Scanning -gt Forward and Backward
    Chaining
  • Others -gt Use Unique Words, Phrase Search,
    Boolean etc.

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Recommend Steps for search
  • ANALYZE your topic to decide where to begin
  • Pick the right starting place by defining your
    topics features
  • Learn as you go VARY your approach with what
    you learn
  • Don't bog down in any strategy that doesn't work.
  • Return to previous strategies better informed

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Tips for analyzing your topic-- Does your topic
  • Have distinctive words or phrases?
  • Seek an overview or cover a broad topic?
  • Specify a narrow aspect of a broad or common
    topic?
  • Have synonymous, equivalent terms, or variant
    spellings or endings that need to be included?
  • Have you a little confused? NEED guidance.

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Defind YOUR TOPIC'S FEATURES
  • Search Engines Meta-Search Engines
  • Google, AltaVista, Nothernlight Power
  • Copernic, http//www.copernic.com

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Defind YOUR TOPIC'S FEATURES
  • Subject Directories Gateway Pages
  • Librarians Index, www. lii.org
  • Informine, informine.ucr.edu
  • Academic Info, www. academicinfo.net
  • About.com, www.about.com
  • AlphaSearch, www.calvin.edu/library/searreso/inter
    net/as/

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Defind YOUR TOPIC'S FEATURES
  • Specialized Databases Invisible Web
  • http//www.searchability.com/popular.htm
  • Find an Expert
  • Email the author
  • Discussion Group,e.g. Liszt(www.topica.com)
  • An expert

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Boolean
  • BOOLEAN LOGIC
  • Way to combine terms using "operators" such as
    "AND," "OR," "AND NOT" and sometimes "NEAR." AND
    requires all terms appear in a record. OR
    retrieves records with either term.
  • children AND television AND violence
  • biomedical engineering AND NOT department of
  • (women OR female) AND networking

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Truncation
  • Children, child, childhood
  • Use Child
  • See the specific instructions for each search
    tool.

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Sub-searching
  • Censorship as an aspect of Ethics in Journalism
  • Search Censorship and Journalism Ethics at the
    same time

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Evaluation of Information Sources
  • Will discuss latter

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IV.How to Find Information on the Internet
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How Much Information?
  • The Largest Library in the World
  • Search 118 million items
  • The Largest Database in the World
  • Search 900 million full-texts
  • The Largest Search Engine in the World
  • Search 1,345 million web pages

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Complexity of the Web
  • Media
  • Text, image, sound, audio, music, video ...
  • Subjects
  • Sci tech, business, news ...
  • Structures
  • Descriptive, procedural, semantic ...
  • Systems
  • Email, WWW, database ...
  • Goals
  • Communication, entertainment, education ...
  • Cultures
  • Demographic, language, habits ...

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Internet Resources with Various Subjects
  • Search engines, e.g. Yahoo
  • Computer industry, e.g. Microsoft, Adobe, SUN,
    Apple, IBM, HP, Intel
  • Media, e.g. CNN
  • Business, e.g. Bloomberg Online
  • Newspapers, e.g. USA Today, New York Times,
    Washington Post
  • Government, e.g. White House

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Internet Resources with Various Subjects
  • Sci Tech, e.g. NASA
  • Bookstores, e.g. Amazon
  • Natural Sci, e.g. MapQuest, The Weather Channel,
    Nature
  • Entertainment, e.g. Disney, MTV, Discovery
  • Sport, e.g. ESPNET sportzone, NBA

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Internet Resources with Various Subjects
  • Travel, e.g. City Net
  • Medical Sci, e.g. NIH, NLM
  • Professional societies, e.g. IEEE, ACM
  • Libraries, e.g. NLM, LC
  • Magazine, e.g. Wall Street Journal
  • University, e.g. UC Berkeley, Stanford, MIT
  • Arts, e.g. Smithsonian Institution
  • Publishing, e.g. Macmillian Computer Publishing,
    DK Internet Resources with Various Subjects

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Different Web Search Models
  • Yahoo, Kimo
  • Manual recommendation in index space
  • AltaVista, Openfind
  • Full-text pattern matching in document space
  • Google
  • Citation information in document space
  • AskJeeves
  • QA (or FAQ search) in specific domains
  • Others
  • metacrawler, want2, AltaVista, FindSounds,
    northernlight, toget, dejanews, mySimon etc.

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