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Search Engine Mortality & New Directions. Greg R. Notess

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Search Engine Mortality & New Directions. Greg R. Notess. Internet Librarian International ... of Search. Among the Global, Web-wide Engines: Mortality. Death ... – PowerPoint PPT presentation

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Title: Search Engine Mortality & New Directions. Greg R. Notess


1
Search Engine Mortality New Directions
  • Greg R. Notess
  • Internet Librarian International
  • London 28 March 2001

2
The State of Search
  • Among the Global, Web-wide Engines
  • Mortality
  • Death of engines
  • Death of functionality
  • New Directions
  • Database Expansion PDF, multimedia others

3
Mortality
  • Search Engines are Disappearing
  • Search features vanish or change

4
Death of Search Engines
  • Infoseek RIP
  • Go Goes GoTo
  • Ultraseek to Inktomi
  • Inference Find
  • Metasearch
  • Open Text Index
  • Old Lycos Database
  • WebCrawler
  • Magellan
  • DejaNews
  • Remarq
  • AltaVista Usenet

5
Death of Search Features
  • Alt tag field search
  • GONE
  • Date on Googles cache
  • GONE
  • Deja Advanced Search Capabilities
  • GONE

6
Death of the - System
  • Change in default operations
  • Multiple terms
  • Default OR with Higher Ranking for Both
  • Use to Require, - to Exclude
  • Users Studies Cause Shift
  • Default to AND (all but Excite and sometimes
    AltaVista)
  • Now, has no function

7
But Inertia Impels
  • Users have learned
  • Beginning of adoption of in library systems
  • The Google conundrum
  • Not Needed
  • Except for Stop Words
  • But if used on non-stop words, all ignored

8
New Directions
  • Changes in Database Structure
  • Expanded Database Coverage

9
Underlying Database Structure
  • Originally
  • Word searching
  • Crawler built
  • Now
  • Pay for inclusion, ranking
  • Link analysis loss of text match
  • Expanded Coverage

10
Expanded Database Coverage
  • Multiple Databases
  • News Headlines
  • Shopping Links
  • Phone Directory Matches
  • Google PDF indexing Text versions

11
Expanded Database Coverage II
  • Inktomi Index Connect
  • Content Beyond Web Pages
  • Submitted via XML Interchange
  • Indexing by Meta Tags
  • Multimedia Audio Files, Video Clips, etc.
  • More Frequent Updates
  • But Only for Some Content

12
Current State of Search Engines
  • Everyone loves to hate search engines
  • Everyone still uses them
  • They now offer search access to hundreds of
    millions of fully indexed Web pages
  • For free

13
And the future?
  • Continued changes
  • And some are even improvements!
  • Lots of new research efforts
  • Taxonomies
  • Outsourcing
  • Visual Representations
  • And much, much more. . .
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