Full paper: http://www.cl.cam.ac.uk/~nkl25/publications/papers/lathia_pervasive2012.pdf

1. the hidden image of the city:
sensing community well-being from urban
mobility
@neal_lathia

2. do you recognise...?

9. economist
benchmarking global city competitiveness
appendix 1
# 1 New York
# 2 London
# 4 Paris
# 33 Oslo
# 53 Warsaw

10. past work:
visibility / recall ~ well-being

11. the image of the city
casa, ucl

12. our work:
visibility / recall ~ pervasive data
a crossroad in our recent research

13. how smart is your smart-card?
measuring travel behaviours, perceptions, and
incentives
@neal_lathia - ubicomp 2011

14. individual's preferences ~ pervasive data

15. tracking “gross community happiness”
from tweets
@danielequercia - cscw 2012

16. community's words ~ well-being

17. mobility
preferences
community
pervasive data ~ well-being?

18. IMD
index of multiple deprivation
89 million journeys

20. 1. map IMD – public transport
obtains the deprivation of locations
2. infer familiar locations
assigns people to top-2 places
3. user-visit matrix
binary matrix reflects if u has visited station j
4. community-flow matrix
station-by-station. familiar with x, travels to y
5. flow, social equaliser & heterogeneity counts

21. main results
correlating mobility with social deprivation
1. area IMD ~ areas it receives visits from
r = 0.21, p < 0.001
2. no homophily effect
r = 0.02, p < 0.001
3. heterogeneity holds for well-off areas
r = -0.16, p < 0.001

22. limitations & bias

23. the hidden image of the city:
sensing community well-being from urban
mobility
@neal_lathia