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Location Based Social Networks — Towards a Rese...

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Avatar for Oliver Roick Oliver Roick
October 08, 2012
Research
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Location Based Social Networks — Towards a Research Agenda

Presented at Workshop on Map creation from user generated data. Hannover, October 2012.

Avatar for Oliver Roick

Oliver Roick

October 08, 2012
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Transcript

  1. location based social networks towards a research agenda Oliver Roick

    ‣ Chair of GIScience ‣ Heidelberg University

  2. what are location based social networks?

  3. social network sites Messages Sharing Friends

  4. social network sites Messages Sharing Friends location

  5. geosocial networking

  6. geotagging

  7. towards a research agenda

  8. towards a research agenda quality assesment 2 fusion of data

    sets 3 applications & data 1

  9. which applications? 1 !"#$%&'()*+,%#-")' .%,/+-)0' 1%2+3' 4$,+#*",5' 678'

  10. what data? 1 points of interest tracks textual information

  11. quality positional accuracy 2 Mandy's

  12. quality attribute completeness 2 Foursquare Facebook records overall full address

    city + street 114.284 24.263 (29%) 33.528 (52%) 59.999 (0%) 1 (71%) 17.450 street (55%) 62.432 (72%) 17.504 category (88%) 100.852 (100%) 24.263 city (67%) 76.010 (88%) 21.287

  13. quality 2 dataset completeness temporal evolution influence of user activity

  14. fusion problem 3 Facebook Foursquare

  15. fusion the mandy‘s problem 3

  16. 3 Mandy's

  17. fusion geometry conflation 3 how to weight geometry? Mandy's

  18. fusion attribute conflation 3 which is the „most correct“ record?

    how can the „most correct“ record be complemented? Mandy's

  19. thank you. questions?