Location Based Social Networks — Towards a Research Agenda

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

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?