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Zero-query information retrieval system no explicit query from user IR triggered by context cheap information for user 7 Zero-query information retrieval system 8 Context: Activity 9 Context: Activity Watching football


  1. Zero-query information retrieval system • no explicit query from user • IR triggered by context • cheap information for user 7

  2. Zero-query information retrieval system 8

  3. Context: Activity 9

  4. Context: Activity Watching football match 10

  5. Context: Activity 11

  6. Research questions 1) What are common information needs w.r.t. activity? 2) Are information needs static or dynamic in time? 3) How to rank future information needs given the last activity of the user? 12

  7. RQ 1 Relevance of information needs given user's activity 13

  8. RQ 1 Relevance of information needs given user's activity 14

  9. RQ 2 Temporal dynamics of information needs 15

  10. RQ 2 Temporal dynamics of information needs 16

  11. RQ 2 Temporal dynamics of information needs 17

  12. RQ 2 Temporal dynamics of information needs 18

  13. RQ 3 Anticipation of user's future information needs given her last activity 19

  14. Wrap up • Anticipating information needs and addressing them with information cards using activity as a context. Didn't fj t in presentation • Evaluation Future work • Exact timing of information cards • Content of information cards • Personalization 20

  15. Wrap up • Anticipating information needs and addressing them with information cards using activity as a context. Didn't fj t in presentation • Evaluation Future work Hire me for an internship! • Exact timing of information cards • Content of information cards • Personalization

  16. www.zero-query.com

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