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Galaxy Zoo: Citizen science on Rails

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Slides from ActiveResearch meeting at RailsConf '09

Published in: Technology, Education

Galaxy Zoo: Citizen science on Rails

  1. 1. Galaxy Zoo Citizen Science on Rails Arfon Smith
  2. 2. Citizen science?
  3. 3. :-(
  4. 4. :-)
  5. 5. 700,000 Images
  6. 6. 20,000 Users
  7. 7. 40,000,000 Inspections
  8. 8. Awesome
  9. 9. Astronomy?
  10. 10. 100 80 60 40 20 0 Professor
  11. 11. 10,000 7,500 5,000 2,500 0 Professor Paper
  12. 12. 50,000 37,500 25,000 12,500 0 Professor Paper PhD
  13. 13. 1,000,000 750,000 500,000 250,000 0 Professor Paper PhD SDSS
  14. 14. 70,000 60,000 Classifications per hour 1 50,000 Kevin weeks 40,000 30,000 20,000 Fukugita et al. 2007 10,000 0 0 6 12 18 24 30 36 42 48 Hours
  15. 15. 1,000,000 Galaxies
  16. 16. 170,000 Users
  17. 17. 70,000,000 Classifications
  18. 18. 70,000,000 Does it work? Classifications
  19. 19. You bet
  20. 20. Clean Super Clean
  21. 21. Clean Super Clean
  22. 22. Clean Super Clean
  23. 23. better than the professionals
  24. 24. 1. Collaborators not users 2. Contribute to real research 3. Don’t waste people’s time
  25. 25. Land K., et al., 2008, Galaxy Zoo: The large-scale spin statistics of spiral galaxies in the Sloan Digital Sky Survey Lintott C.J., et al., 2008, Galaxy Zoo: Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey Bamford S.P., et al., 2008, Galaxy Zoo: the dependence of morphology and colour on environment Slosar A., et al., 2008, Galaxy Zoo: Chiral correlation function of galaxy spins Schawinski K. et al. 2009, Galaxy Zoo : A sample of blue early-type galaxies at low redshift
  26. 26. 250,000 Galaxies
  27. 27. 225,000 Users
  28. 28. 28,000,000 Classifications
  29. 29. 70,000,000 What ’s next? Classifications
  30. 30. 1 #
  31. 31. Contribution to research
  32. 32. Galaxy Zoo Database
  33. 33. Galaxy Zoo Crow Zoo Moon Zoo Papyrus Zoo Database Database Database Database
  34. 34. Task Project Annotation User Asset Answer
  35. 35. Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9
  36. 36. HAProxy Web Web Web HAProxy API API MySQL Master MySQL Slave MySQL Slave
  37. 37. Questions?

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