Master Thesis Defense

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Slides for my master thesis defense

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Master Thesis Defense

  1. 1. The Complexity ofUrban InformationGatheringAbdulfatai Popoola
  2. 2. Representation FormatsPrimal Dual
  3. 3. Measuring Difficulty
  4. 4. Eigenvector Centrality
  5. 5. Stage 1: Data Collection▪ Openstreetmap▪ Challenges▪ Extra data: age, crime, continent, structure, area, population
  6. 6. Merging Roads
  7. 7. Artificial data
  8. 8. Processed Data• Inter metric correlations
  9. 9. Discoveries…
  10. 10. Correlation• Age
  11. 11. Correlation• Age
  12. 12. Correlation• Crime I
  13. 13. Correlation• Crime II
  14. 14. Continental BoxplotsEntropy Gini Coefficient
  15. 15. StatsDifferenceAsia-Europe FalseAsia-North America TrueEurope-North America Truedf H P < 0.05Entropy 2 51.62 TrueGini Coefficient 2 44.65 True
  16. 16. Structural BoxplotsEntropy Gini Coefficient
  17. 17. Statsdf H P < 0.05Entropy 2 2.20 FalseGini Coefficient 2 2.07 False
  18. 18. No significant Correlations• Area• Population
  19. 19. Contributions▪ Model▪ JIZNA▪ Applications
  20. 20. 2012Tag Challenge
  21. 21. Tag Challenge Cities• Entropy
  22. 22. More to comeDataDynamic characteristicsDARPA’s Red Balloon Challenge
  23. 23. Finally…▪ Just about three major things▪ The age of a city can influence the ease of search.▪ City structure has no significant influence on ease of search.▪ North American cities easier to search than European/Asian cities.
  24. 24. Thank you.
  25. 25. Questions
  26. 26. extras
  27. 27. Projections
  28. 28. Normalization

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