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Location Based Social Networks — Towards a Research Agenda
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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.
Oliver Roick
October 08, 2012
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Transcript
location based social networks towards a research agenda Oliver Roick
‣ Chair of GIScience ‣ Heidelberg University
what are location based social networks?
social network sites Messages Sharing Friends
social network sites Messages Sharing Friends location
geosocial networking
geotagging
towards a research agenda
towards a research agenda quality assesment 2 fusion of data
sets 3 applications & data 1
which applications? 1 !"#$%&'()*+,%#-")' .%,/+-)0' 1%2+3' 4$,+#*",5' 678'
what data? 1 points of interest tracks textual information
quality positional accuracy 2 Mandy's
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
quality 2 dataset completeness temporal evolution influence of user activity
fusion problem 3 Facebook Foursquare
fusion the mandy‘s problem 3
3 Mandy's
fusion geometry conflation 3 how to weight geometry? Mandy's
fusion attribute conflation 3 which is the „most correct“ record?
how can the „most correct“ record be complemented? Mandy's
thank you. questions?