Digging into the Deep Web

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    Digging into the Deep Web - Presentation Transcript

    1. Dig into the Deep Web Going on a treasure hunt… Wendy DeGroat MW Library, November 2009 By cameronparkins
    2. How do sources get buried?
      • Requires log-on
      • Accessed by query
      • Protected from robots
      • Public access expired
      • Can’t be bookmarked (scripted, dynamic, etc.)
      • More than 3 clicks deep
      (He, et al., 2007)
    3. How big is the deep web?
      • Conflicting answers…
        • 91,000 terabytes (Deep Web, n.d.)
        • 500x larger than surface (Sullivan as cited in He, et al., 2007)
        • 63% (He, et al., 2007) - 95% of web
      (Dash, 2007)
    4. = 1/3
    5. What’s in the treasure chest?
      • Images and multimedia files, including the content of many online exhibits
      • Diaries, letters, historic maps
      • Patents, laws, bills, and treaties
      • Articles licensed/protected by copyright
      • “ Old” newspaper articles (esp. pre-1980’s)
      • Collections of papers, preprints (conference, etc.)
      • Declassified documents, Congressional testimony
      • Government reports, data sets
      • And much more…
    6. Strategies for finding an X, and then digging for… By merfam
    7. Why search for it? By brittanyg
    8. Treasure Hunt
      • Mapping
      • Planning
      • Selecting the proper tools
      • Digging
    9. (Concept) mapping
      • Browse for broader concepts
        • Categories of web directories
        • Sections of archives
        • Subject headings in databases
      • Note related/narrower concepts
      • Amend your map as you search
    10. Preparing for the journey
      • Reference book articles
        • PowerSearch – Books tab
        • U.S. and World History RC’s – Reference tab
        • Biography, Science, and Literature RC’s
        • Google Book/Worldcat
        • NetLibrary (note: not all reference, some biased)
    11. Preparing for the journey
      • Finding reference sources, overviews, etc.
        • Recommended sources from Wikipedia/EB
        • Literature reviews
        • Reference lists
        • Further/recommended reading lists
        • Briefs/reports from Congressional Research Service, State Department, think tanks, etc.
      • Finding compilations of sources
        • Search subject + bibliography, research guide, resource guide, study guide, handbook…
    12. Google Book
    13. Tools for the dig
    14. Digging tips
      • Gale
        • Reference sources
          • Search by broad concept
          • See Reference / Books result tabs
          • Refine by document type
          • Go beyond PowerSearch
        • Follow leads within and between databases
        • Journal/mag/news articles & primary sources
          • Start broad, then narrow
          • Use Advanced search to combine keywords and subject headings
    15. Digging tips
      • JSTOR and Project MUSE
        • Use Advanced Search
        • In general, limit to articles
        • If looking for books, limit to reviews
        • JSTOR
          • Refine by limiting by discipline and/or date range
        • Project MUSE
          • Refine by combining key word and subject searching
          • May also refine by limiting to All Except Text
    16. Digging tips
      • LexisNexis
        • Supreme court decisions
        • Laws
        • News
          • General
          • Regional
          • Foreign news sources
          • Wires
          • Transcripts
    17. Tools for the dig
      • VCU databases
        • Browse by topic
        • Search by journal title or article citation
        • Follow to find in other databases
        • Not in a database? Check online catalog for copies in print, and on microfilm or microfiche
      • VCU is also a government repository
      • VCU library’s resource guides
    18. Tools for the dig
      • Federated search tools
        • e.g. Google Scholar, USAsearch.gov
        • Finding tools = portals in library’s bookmarks
      • Directories
        • e.g. Infomine, Intute
        • Finding tools = directories in library’s bookmarks
      • Metasearch engines
        • e.g. Clusty, Dogpile
        • Finding tools = metasearch in library’s bookmarks
    19. Tools for the dig
      • Search for search tools
        • Finding tools bundle in MW Library’s bookmarks = portals, directories, metasearch
        • Search subject + directory, portal , or search
      • Social bookmarking sites
        • del.icio.us
        • digg
        • stumbleupon
    20. Choose the right Google
      • Google Book
      • Google Scholar
      • Google News & News Archive
        • Save customizations
        • Specify news source location
        • Available for other countries
        • Set up news alerts
      • Google by country
      • Google custom search engine
      By shawnbot
    21. Surveying the landscape
      • Who cares about this topic?
      • Where do these people live/gather?
        • Research centers
        • Regulating/monitoring agencies
        • Professional/stakeholder organizations
      • Where would their work be collected?
        • Key publications, conferences, databases
        • Historical societies, museums, galleries
    22. Staying on track
      • Stop periodically
        • See where you are
        • Reflect on what you’ve found/learned
        • Decide where to look next
      • Follow leads
      • Amend your (concept) map
      • Take notes (interacting vs. pasting)
      • Document your sources
    23. By ninjaneil902
    24. What questions do you have?
      • MW Library web site
        • http://mwlibrary.wordpress.com (or select Media Center on school’s home page)
        • Navigation menus at top and on left
      • MW Library bookmark account
        • http://del.icio.us/dragonlibrary/wilkes_koreanwar
      • MW Library research wiki
        • http://mwlibrary.wetpaint.com
        • See Dig into the Deep Web
    25. By brittanyg
    26. References
      • Dash, R. (2007, April 24). Exposing the invisible web to search engines. Search Engine Journal . Retrieved March 8, 2008, from http://www.searchenginejournal.com/exposing-the-invisible-web-to-search-engines/4771/
      • Deep web. (n.d.). Wikipedia . Retrieved March 8, 2008, from http://en.wikipedia.org/wiki/Deep_web
      • He, B., Patel, M., Zhang, Z., & Chang, K. (2007). Accessing the deep web. Communications of the ACM 50 (5), 94-101. Retrieved March 8, 2008, from ACM Digital Library.

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