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Information seeking

  1. 1. Information Seeking An excerpt from Designing the Search Experience Tyler Tate
  2. 2. R e s o u r c e i n t a k e Leave prior patch Arrive at new patch Optimal point to leave current patch Charnov’s marginal value theorem.
  3. 3. Informavore creatures hungry for information
  4. 4. “What information consumes is rather obvious: it consumes the attention of its recipients. Hence a wealth of information creates a poverty of attention, and a need to allocate that attention efficiently among the over- abundance of information sources that might consume it.” — Herbert Simon
  5. 5. Satisfice Sacrifice the “perfect” for the “good enough”
  6. 6. Information scent cues that lead the user in the right direction
  7. 7. When information scent grows stronger from page to page, users are confident that they’re headed in the right direction. But when it’s weak, they may be uncertain about what to do, or even give up.
  8. 8. 60% success rate Words per link 7-8 11-12 15-16 19-20 23-24 Descriptive titles.
  9. 9. Relevant snippets with hit highlighting.
  10. 10. Clear labeling.
  11. 11. Faceted navigation.
  12. 12. The classic model of information retrieval. Information Need Query Document Representation Document Match
  13. 13. Task Information Need Verbal Form Query Search Engine Documents Query Results The standard model of the search process.
  14. 14. Q1 Q2 Q3 Q4 Q5 Q6 Q7 The dynamic, or “berrypicking” model.
  15. 15. The information journey model. Recognize Need Validate and Interpret Information Find Information Use Interpretation
  16. 16. Stages of information seeking. Selection Exploration Formulation Collection Action Initiation