This was part of a talk given at the 2016 Data Day 3.0 held by the Institute for Data Science at Carleton University.
The research for the studies discussed in these slides was funded by a European Research Council Advanced Investigator award ERC-2012-AdG-323636-SOFTCITY. I would like to express my gratitude to Ordnance Survey Ireland (OSi), Dublin City Council and the Open Data Community in Ireland for generously sharing their knowledge and time.