1. Publicspending.gr: network analysis in public expenditure M. Vafopoulos, I. Anagnostopoulos, M. Meimaris, M. Klonaras, I. Xidias, A. Papantoniou, G. Vafeiadis, V. Loumos and G. Alexiou Multimedia Technology Laboratory, School of Electrical and Computer Engineering, National Technical University of Athens

2. (initial) scope to provide an objective layer of information that will enable citizens, journalists, business people and politicians to re-discover their own “stories” from data. 2

3. The Cl@rity program in Greece o A revolution in open government o ex-ante reporting of every state decision o paradigm shift for 40K public servants 3

4. The Cl@rity program in Greece o manifests the value of procrastination principle (again) o strong rival to the Clientelistic state o The new version under development (delivery: end of 2013) 4

5. PSGR: publicspending.gr 2011: I believed that the Clarity program is the open data “gold” (& persuaded 7 more people) 5

6. PSGR: publicspending.gr 2012: …with some dust and rocks in a deep goldmine 6

7. PSGR: publicspending.gr 2013: time to chisel some jewelry 7

8. Advanced Search 8

9. Linked Data 9

10. Business profiles 10

11. Spending in my area 11

12. public spending networks

13. The “brokers” size: Betweeness Centrality, color: Hub Ranking

14. important payees and payers 14 the Hellenic Telecommunication Organization (OTE) has the highest in-degree (green arrows=incoming payment). the Ministry of Public Order has the highest out-degree (red arrows=outgoing payment).

15. competition 15

16. public spending -> economics 16 Prices

17. Going global: AUSTRALIA 17

18. Sum up o LOD apps can change the world o Economic LOD is the natural nucleus of the ecosystem o Network analysis a basic tool to analyze & visualize Linked Data 18

19. Real-time open data? 19