Your SlideShare is downloading. ×
location based social networks - towards a research agenda
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

location based social networks - towards a research agenda

72
views

Published on


0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
72
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. location basedsocial networkstowards a research agendaOliver Roick ‣ Chair of GIScience ‣ Heidelberg University
  • 2. what are location basedsocial networks?
  • 3. social network sites Messages Sharing Friends
  • 4. social network sites Messages location Sharing Friends
  • 5. geosocial networking
  • 6. geotagging
  • 7. towards a research agenda
  • 8. towards a research agenda1 applications & data2 quality assesment3 fusion of data sets
  • 9. 1 which applications? 1%2+3!"#$%&()*+,%#-") .%,/+-)0 4$,+#*",5 678
  • 10. 1 what data? tracks textual informationpoints of interest
  • 11. 2 quality positional accuracy Actual
  • 12.  position Mandys
  • 13.  Railway
  • 14.   Diner Mandys
  • 15.  Railway
  • 16.   Dinner
  • 17.  -
  • 18.  Heidelberg
  • 19. 2 quality attribute completeness Foursquare Facebookrecords overall 114.284 24.263full address 33.528 (29%) 1 (0%)city + street 59.999 (52%) 17.450 (71%)city 76.010 (67%) 21.287 (88%)street 62.432 (55%) 17.504 (72%)category 100.852 (88%) 24.263 (100%)
  • 20. 2 qualitydataset completenesstemporal evolutioninfluence of user activity
  • 21. 3 fusion problem Facebook Foursquare
  • 22. 3 fusion the mandy‘s problem
  • 23. 3 fusion the mandy‘s problem Mandys Mandys
  • 24.  Railway
  • 25.   Diner American
  • 26.  Diner Mandys
  • 27.  Dinner Mandys
  • 28.  Diner Mandys
  • 29.  Railway
  • 30.  Dinner
  • 31.  -
  • 32.  Heidelberg
  • 33. 3 fusion geometry conflationActual
  • 34.  position Mandys
  • 35.  Railway
  • 36.   Diner Mandys
  • 37.  Railway
  • 38.   how to weight geometry?
  • 39. 3 fusion attribute conflationMandys Mandys
  • 40.  Dinner which is the „most correct“ record? Mandys
  • 41.  Diner how can the „most correct“ record be complemented?
  • 42. thank you.questions?