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

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Presentation on theme: "Search Engine Mortality & New Directions Greg R. Notess Internet Librarian International London 28 March 2001."— Presentation transcript:

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

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

4 Mortality Search Engines are Disappearing Search features vanish or change

5 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

6 Death of Search Features Alt tag field search GONE Date on Google’s cache GONE Deja Advanced Search Capabilities GONE

7 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

8 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

9 New Directions Changes in Database Structure Expanded Database Coverage

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

11 Expanded Database Coverage Multiple Databases News Headlines Shopping Links Phone Directory Matches Google: PDF indexing & Text versions

12 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

13 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

14 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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