Google: Algorithms & Cognition

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Slides by Brendan Devlin, Dublin Institute of Technology for Learning & Teaching Showcase Workshop, January 2009

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Google: Algorithms & Cognition

  1. 1. Google: Algorithms & Cognition
  2. 2. Algorithms A set of rules that a search engine uses to rank the listings contained within its index
  3. 3. Google Web Server Google User Index Servers Document Servers The web server sends the query to the index server which identifies the pages that contain the search terms The query goes to the document servers which retrieve the web pages and Include snippets from the pages in the results. Results returned to the user Populated by Web-crawlers
  4. 6. View of the Information Universe <ul><li>Limited subset of the information universe </li></ul><ul><li>Limited subset of the Internet </li></ul><ul><li>With relevance ranking only a subset of a subset </li></ul><ul><li>viewed. </li></ul><ul><li>With poor search a further limit on results </li></ul><ul><li>Algorithms provide no objective quality criteria </li></ul><ul><li>Can be manipulated </li></ul>
  5. 7. Algorithms <ul><li>Politically compromised </li></ul><ul><li>Biased based on commercialism </li></ul><ul><li>This view of the information universe skews </li></ul><ul><li>perspective </li></ul>
  6. 8. <ul><li>Search and skimming connected to surface </li></ul><ul><li>understandings </li></ul><ul><li>Loose benefits of deep reading </li></ul><ul><li>Links established between resources with </li></ul><ul><li>alternative purposes ie academic, journalistic </li></ul><ul><li>entertainment. </li></ul>Cognitive Hazards
  7. 9. <ul><li>A particular view of the world is presented </li></ul><ul><li>Technological solutions the panacea </li></ul><ul><li>Over use can be socially isolating </li></ul>Social Hazards
  8. 10. <ul><li>Google algorithms do not provide </li></ul><ul><li>artificial intelligence. </li></ul><ul><li>Skewed view of the information Universe. </li></ul><ul><li>Possible hazards to cognition </li></ul><ul><li>and perspective. </li></ul>Final Comments
  9. 11. Carr, N. (2008) ‘Is Google making us stupid.’ Atlantic . July/August. [online] http://www.theatlantic.com/doc/200807/google Craven, Phil. (2009) ‘Google’s pagerank explained and how to make the most of it. [online] http://www.webworkshop.net/pagerank.html. Darton, R. (2008) ‘The Library in the New Age.’ The New York Review of Books. vol 55. (10) pp .1-8 [online] http://www.nybooks.com/articles/21514 Grimmelmann, J. (2008) ‘The Google dilemma.’ [online] http://works.bepress.com/cgi/viewcontent.cgi?article=1018&context=james_grimmelmann Hagedon,K. (2008) ‘Google still not indexing hidden web urls.’ DLIB Magazine vol 14. (7/8) [online] http://dlib.org/dlib/july08/hagedorn/07hagedorn.html. Strickland, J. (2009) ‘How Google works.’ [online] http://computer.howstuffworks.com/google1.htm BIBLIOGRAPHY

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