Download
color test color test color test color test n.
Skip this Video
Loading SlideShow in 5 Seconds..
COLOR TEST COLOR TEST COLOR TEST COLOR TEST PowerPoint Presentation
Download Presentation
COLOR TEST COLOR TEST COLOR TEST COLOR TEST

COLOR TEST COLOR TEST COLOR TEST COLOR TEST

839 Views Download Presentation
Download Presentation

COLOR TEST COLOR TEST COLOR TEST COLOR TEST

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. COLOR TESTCOLOR TESTCOLOR TESTCOLOR TEST

  2. Engineering Social Networks Nicole Immorlica, Northwestern University

  3. spread of disease.

  4. diffusion of products.

  5. networks: exogenous, endogenous, … or designed?

  6. example: designing networks to engineer diversity.

  7. initially,

  8. initially, a regular directed graph blue and yellow nodes

  9. at time t,

  10. at time t, link to mR nodes at random 1. 2. link to mS nodes via color- biased searching

  11. parameters: q, fraction of blue to yellow mR, # of random neighbors mS, # of biased neighbors

  12. question: what is the diversity as a function of q, mR, and mS?

  13. argo tea observations: (joint with B. Lucier and B. Rogers) steady-state diversity is independent of mS 1. 2. speed of convergence is function of mR/mS

  14. lesson: a centralized designer can enforce diversity by insisting that people have a few random friends.

  15. killer app #1: Schelling model of segregation

  16. question: (joint with Kleinberg2 and Sinclair) can we decrease segregation by teaching tolerance? who should we target?

  17. killer app #2, 3, 4, …: (half-baked) poverty traps information cascades fostering collaboration

  18. killer app #n?