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letting massive data tell their story… PowerPoint Presentation
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letting massive data tell their story…

letting massive data tell their story…

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letting massive data tell their story…

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  1. letting massive data tell their story… Albert-LászlóBarabási Center for Complex Networks Research, Northeastern U. Department of Medicine, Harvard Medical School BarabasiLab.com

  2. Tropical forest in Yucatan, Mexico “Lévy flight” by a spider monkey

  3. Tropical forest in Yucatan, Mexico

  4. Http://www.nd.edu/~networks Random walk theory AlbertEinstein,The theory of the Brownian Motion ANNALEN DER PHYSIK (1906)

  5. Random Walks Lévy flights

  6. Animal Motion Pókmajom Wandering Albatross Wandering Albatross Vishwanatan et. al. Nature(1996); Nature (1999). Sirályok repülése

  7. Vishwanatan et. al. Nature(1996); Nature (1999).

  8. WhereIsGeorge.com Human Motion Brockmann, Hufnagel, Geisel Nature (2006)

  9. Human Motion

  10. Human Motion Brockmann, Hufnagel, Geisel Nature (2006)

  11. A human’s real trajectory

  12. Mobile Phone Users

  13. Mobile Phone Users 200 km 100 km 0 km 0 km 100 km 200 km 300 km

  14. β=1.75±0.15 • Two possible explanations • Each users follows a Lévy flight • The difference between individuals follows a power law

  15. Understanding human trajectories Center of Mass: Radius of Gyration:

  16. Scaling in human trajectories βr=1.65±0.15

  17. Mobile Phone Users 200 km 100 km 0 km 0 km 100 km 200 km 300 km

  18. The shape of human trajectories

  19. Mobile Phone Viruses Hypponen M. Scientific American Nov. 70-77 (2006).

  20. Why did we not have a significant mobile virus breakout so far?

  21. Spreading mechanism for cell phone viruses Long range infection process (similar to computer viruses) Short range infection process (similar to biological viruses, like influenza or SARS)

  22. Spatial Spreading Patterns of Bluetooth and MMS virus

  23. Spreading mechanism for cell phone viruses If the market share of an Operating System is under mc~10%, MMS viruses cannot spread.

  24. You are what the data tells about you… BarabasiLab.com

  25. Collaborators Pu Wang Marta Gonzalez Cesar Hidalgo www.BarabasiLab.com