full transcript

From the Ted Talk by Chris Urmson: How a driverless car sees the road

Unscramble the Blue Letters

But if we want a self-driving car, we need a technology curve that looks like this. We're going to have to put more sensors in the vehicle, and we'll pick some operating point up here where it bilaacsly never gets into a crash. They'll happen, but very low frequency. Now you and I could look at this and we could argue about whether it's incremental, and I could say something like "80-20 rule," and it's really hard to move up to that new curve. But let's look at it from a different doitcrien for a moment. So let's look at how often the toenochlgy has to do the right thing. And so this green dot up here is a driver assistance system. It turns out that human drivers make mistakes that lead to traffic accidents about once every 100,000 miles in America. In contrast, a self-driving system is probably mkaing dscniieos about 10 times per second, so order of magnitude, that's about 1,000 teims per mile. So if you compare the distance between these two, it's about 10 to the eighth, right? Eight orders of magnitude. That's like comparing how fast I run to the seped of lhgit. It doesn't matter how hard I tiran, I'm never actually going to get there. So there's a pretty big gap there.

Open Cloze

But if we want a self-driving car, we need a technology curve that looks like this. We're going to have to put more sensors in the vehicle, and we'll pick some operating point up here where it _________ never gets into a crash. They'll happen, but very low frequency. Now you and I could look at this and we could argue about whether it's incremental, and I could say something like "80-20 rule," and it's really hard to move up to that new curve. But let's look at it from a different _________ for a moment. So let's look at how often the __________ has to do the right thing. And so this green dot up here is a driver assistance system. It turns out that human drivers make mistakes that lead to traffic accidents about once every 100,000 miles in America. In contrast, a self-driving system is probably ______ _________ about 10 times per second, so order of magnitude, that's about 1,000 _____ per mile. So if you compare the distance between these two, it's about 10 to the eighth, right? Eight orders of magnitude. That's like comparing how fast I run to the _____ of _____. It doesn't matter how hard I _____, I'm never actually going to get there. So there's a pretty big gap there.

Solution

  1. light
  2. basically
  3. times
  4. direction
  5. speed
  6. technology
  7. train
  8. making
  9. decisions

Original Text

But if we want a self-driving car, we need a technology curve that looks like this. We're going to have to put more sensors in the vehicle, and we'll pick some operating point up here where it basically never gets into a crash. They'll happen, but very low frequency. Now you and I could look at this and we could argue about whether it's incremental, and I could say something like "80-20 rule," and it's really hard to move up to that new curve. But let's look at it from a different direction for a moment. So let's look at how often the technology has to do the right thing. And so this green dot up here is a driver assistance system. It turns out that human drivers make mistakes that lead to traffic accidents about once every 100,000 miles in America. In contrast, a self-driving system is probably making decisions about 10 times per second, so order of magnitude, that's about 1,000 times per mile. So if you compare the distance between these two, it's about 10 to the eighth, right? Eight orders of magnitude. That's like comparing how fast I run to the speed of light. It doesn't matter how hard I train, I'm never actually going to get there. So there's a pretty big gap there.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
driver assistance 9
assistance systems 4
assistance system 3
blue box 3
billion minutes 2
pickup truck 2
lane change 2
complicated problem 2
police officer 2
laser data 2
fully driverless 2

ngrams of length 3

collocation frequency
driver assistance systems 4
driver assistance system 3

Important Words

  1. accidents
  2. america
  3. argue
  4. assistance
  5. basically
  6. big
  7. car
  8. compare
  9. comparing
  10. contrast
  11. crash
  12. curve
  13. decisions
  14. direction
  15. distance
  16. dot
  17. driver
  18. drivers
  19. eighth
  20. fast
  21. frequency
  22. gap
  23. green
  24. happen
  25. hard
  26. human
  27. incremental
  28. lead
  29. light
  30. magnitude
  31. making
  32. matter
  33. mile
  34. miles
  35. mistakes
  36. moment
  37. move
  38. operating
  39. order
  40. orders
  41. pick
  42. point
  43. pretty
  44. put
  45. rule
  46. run
  47. sensors
  48. speed
  49. system
  50. technology
  51. times
  52. traffic
  53. train
  54. turns
  55. vehicle