Search Engine Strategies

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Search Engine Strategies - Presentation Transcript

  1. Search Engine Strategies: Digging Deeply Internet Librarian, Oct. 31, 2007 By Greg R. Notess SearchEngineShowdown.com
  2. Overview
    • Overlap & Search Switching
    • Social Challenges: Facebook, Wikipedia
    • Book Searching
    • Cache Mining
    • Google Tricks or Treats
    • And More. . .
  3. Recent Example: (Last month)
    • Phrase seach for a name
    • Ask Results: 5
    • Live Results: 4
    • Yahoo! Results: 9 (or 20 unclusted)
    • Google: 3!
  4. Search Switching
    • Between Vendors
      • Search box
      • Search services
      • Bookmarklets
    • Within One System
      • “Tabs”
      • “More”
      • Betas
  5. Between Vendors
    • Web:
      • TurboScout www.turboscout.com
      • Intelways www.intelways.com (Crossengine)
      • Zuula www.zuula.com
      • Trovando www.trovando.it
      • Bookmarklets searchengineshowdown.com/bmlets/
    • Geo Searching
      • Flash Earth www.flashearth.com
    • Book Searching
      • Booksearchx3 www.kokogiak.com/booksearch
  6. Switching Within
    • Use “tabs”
    • Look under “More”
  7. New Generation Challenges Citation Confusion WIkipedia Challenges Facebook Searching
  8. Citations: Why & What?
    • Why need to cite?
    • What is the original source?
    • Example
      • en.wikipedia.org/wiki/Evidence-based_medicine
  9.  
  10. No full text link
  11. Wikipedia
    • “ According to Wikipedia. . .”
    • Which version?
    • History: Searchable?
  12. Facebook Searching
    • Privacy vs. Search
      • In general, full profile in-network
      • So, join network to view
      • Two regional switches in 60 days
      • Email address required for work/college
    • Network Statistics
  13. Other Book Searching
    • Amazon's "Search Inside the Book"
    • Google Book Search
    • Open Content Alliance
      • Internet Archive Text Archive
      • Live Search Books
    • Individual publishers' initiatives
  14. Full Text Searching: Books
    • New information source for searchers
    • Searching, Not Reading
    • Think About Potential Uses
    • Limited Access, but Full(?) Search
  15. Amazon Search
    • Limit to Books Database
    • Look for
      • “Search Inside” or “Look Inside” image
      • Excerpt
  16.  
  17.  
  18. Google Books Search
    • books.google.com
    • Limited Access (May require logging in)
      • Sample Pages (with publisher agreement)
      • Snippet View (without agreement)
    • Full View
    • Or No Preview Available
  19. Google, Amazon, Live
    • Have Old and NewBooks
      • Amazon: As Reprints
    • View Extracts Only, Log In to View
    • How Much Depends on Publisher
  20. Publishers’ Sites
    • National Academies Press
    • www.nap.edu
    • 3,700 books online free
  21.  
  22. Cache Mining
    • Copy of Indexed Version HTML
      • Images, CSS, JavaScript NOT Cached
    • Multiple Copies Available
      • Google, Yahoo, Live, Gigablast, Ask, Exalead
        • searchengineshowdown.com/others/archive.shtml
    • Use for
      • Older Copies
      • When Site is Down
  23. Cache Explored
    • Google, Live, Gigablast, Ask
      • Include Date of Crawl
    • Text only versions at Google, Gigablast
    • Wayback Machine archive.org
      • From 1996 to 8-12 months ago
      • Includes Some Images, etc.
    • Use all for Range of Dates
  24. Google Tricks or Treats Google Numbers URL Tricks Google Dating
  25. Google Number Change
    • Upper right: “About” number
    • Has lessened for small retrievals
    • Unfiltering may increase
    • Add &filter=0 to turn off clustering
  26. Google Supplemental 2003-07
    • Formerly separate database w/ labels
      • Not refreshed frequently
      • Retrieved only when <200-800 results
    • Label is now gone, Refreshed more often
      • But still there?
  27. In Google Results URL
    • Change &as_qdr=
      • d[number] - past number of days
      • w[number] - past number of weeks
      • y[number] - past number of years
    • &as_qdr=y3
      • For past 3 years
  28. More Google URL Tricks
    • Add &filter=0 to turn off clustering
    • Change &num=100 to see more results
    • Image Searching
      • Add &imgtype=face to limit to faces
      • Add &imgtype=news for news photos
  29. Google Dating
    • Google change to date 1 st seen
      • Or last changed
    • Google advanced search
      • “Return web pages first seen in the”
      • More choices
      • Still inaccurate
  30. More Search Tricks & Treats Phrases Perils Image Searching Conundrum Link Searching Related Searches
  31. Phrase Searching & Perils
    • Powerful advanced command
    • Can combine with single terms
      • “ use quotes” to “find phrases of more than one word”
    • Beware overuse
      • “ nace salary survey fall 2007”
  32. Image Searching Issues
  33. Link Searching
    • Google: Partial results, no combine
    • Live: Commands pulled in March
      • link:, linkdomain:, & inurl: (use + to make work)
    • Yahoo: Best bet
    • link:http://www.ibm.com/employment -site:ibm.com
      • Be sure to include full URL and http://
      • Also can use linkdomain: with no http://
    • linkdomain:ibm.com site:yale.edu
  34. Personalization
    • Google ranking now defaults to it
      • If you are signed in
      • . . . And do not turn it off
    • Same results, just slightly different order
    • Remember: Add &pws=0 to turn off
    • Trend for future or dead end?
  35. Related Searches
    • Google Suggest
    • Yahoo! New Refinements
    • Ask Related
  36. Search Well and Be Wise! Questions? More at S earchEngineShowdown.com

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