the magic of unsupervised learning agustinus nalwan
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THE MAGIC OF UNSUPERVISED LEARNING Agustinus Nalwan Head of AI - PowerPoint PPT Presentation

Aug 22, 2022 •279 likes •1.11k views

THE MAGIC OF UNSUPERVISED LEARNING Agustinus Nalwan Head of AI Carsales.com.au A LITTLE BIT ABOUT MYSELF AI 4 Years SAVING OUR FOREST BUSHFIRE DETECTION BACK TO THE MAIN TOPIC THE MAGIC OF UNSUPERVISED LEARNING SUPERVISED LEARNING

  1. THE MAGIC OF UNSUPERVISED LEARNING Agustinus Nalwan Head of AI Carsales.com.au

  2. A LITTLE BIT ABOUT MYSELF AI 4 Years

  3. SAVING OUR FOREST BUSHFIRE DETECTION

  5. BACK TO THE MAIN TOPIC

  6. THE MAGIC OF UNSUPERVISED LEARNING

  7. SUPERVISED LEARNING

  8. SUPERVISED LEARNING IMAGE RECOGNITION

  11. CAR RECOGNITION

  13. Ford Kuga Titanium

  14. SUPERVISED LEARNING I am awesome

  15. HOW DO YOU TRAIN THE AI?

  16. TRAINING BMW X5 Ford Ecosport Hyundai i30

  17. LOTS OF THEM

  18. SERIOUSLY LOTS OF THEM

  19. 10,000,000 CARS

  20. 10,000,000 CARS LABELLED!

  23. FROM MULTIPLE ANGLES

  24. PROBLEMS • Huge effort • Not practical

  25. MOST WORLD DATAS ARE UNLABELED • Facebook photos • Youtube videos • Twitter feeds

  26. UNSUPERVISED LEARNING

  27. UNSUPERVISED DEEP LEARNING GENERATING FACES

  28. IMAGE GENERATION • Variational Auto Encoder (VAE) • Generative Adversarial Network (GAN)

  29. VAE • Understand the subject (face) • Generate new subject

  30. HOW DOES IT WORK?

  31. AUTOENCODER 20x20 40x40 80x80 80x80 40x40 20x20 50x1 Latent Vector Decoder Encoder

  32. MSE, FPL - Error Images Minimize

  33. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4

  34. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 Hair-length

  35. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 Hair-length Skin-color

  36. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 Hair-length Skin-color Eye-size Gender Age

  37. HOW COULD IT BE POSSIBLE? SMALL LATENT DIMENSION REMEMBER THE SIGNIFICANT DIFFERENCES

  38. PACKING A TRAVEL BAG

  39. BIG LUGGAGE

  40. SMALL BAG Latent Vector Important Features Learned

  41. MEMORY GAMES Info 1 Info 2 Info 3 Info 4 Info 1 Info 2 Info 3 Info 4 Gender Hair Color Skin Color Age

  42. HOW DO WE USE IT TO GENERATE NEW FACE?

  43. AUTOENCODER 20x20 40x40 80x80 80x80 40x40 20x20 50x1 Latent Vector Decoder Encoder

  44. AUTOENCODER 50x1 20.1, 10.5, -5.2, 6.2, … Latent Vector Decoder

  45. AUTOENCODER 50x1 20.1, 10.5, -5.2, 6.2, … Latent Vector Decoder

  46. LATENT SPACE DISTRIBUTION Land of no face

  47. LATENT SPACE

  48. MORPHING

  49. FACE ARITHMETIC

  50. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 Hair-length Skin-color Eye-size Gender Age

  51. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 Hair-length

  52. LATENT VECTORS Reconstructed Original Image Image 8.5 5.2 8.7 -3.2 1.5 -2.4 4.3 4.5 5.4 4.2 -2.0 0.9 4.3 -3.5 1.4 0.7 0.1 0.2 Hair-length

  53. 20.1, 10.5, -5.2 5.0, 6.3, -5.6 Bang vector 15.1, 4.2, 0.4

  54. BANG PREVIEW Bang vector 1.0, 5.3, 3.2 15.1, 4.2, 0.4 16.1, 9.5, 3.6

  55. ADDING GLASSES

  56. REMOVING GLASSES

  57. ADDING YOUTH

  58. GAN 
 GENERATIVE ADVERSARIAL NETWORK

  59. Real Face Discriminator Prediction Images Network Real or Fake Punished on Discriminator Network’s Generated failure Face Image Punished on Discriminator Network’s Generative Random Vector success Network

  60. MORPHING USING GAN

  62. OTHER APPLICATION OF GENERATIVE NETWORK

  63. SUPER RESOLUTION

  64. SUPER RESOLUTION

  65. SUPER RESOLUTION

  66. SUPER RESOLUTION

  67. SUPER RESOLUTION

  68. SUPER RESOLUTION

  69. SUPER RESOLUTION 256x512 64x128 4x

  70. SUPER RESOLUTION

  71. UNSUPERVISED LEARNING WHY IS IT IMPORTANT ?

  72. AGI

  73. WHAT’S NEEDED FOR AN AGI

  74. SELF LEARNING Supervised Unsupervised

  75. KNOWLEDGE EXTRACTION

  76. REASONING Reasoning Knowledge Extraction Information

  77. WITHOUT REASONING

  78. WITHOUT REASONING

  79. TAKE AWAY NOTHING

  80. DANGER !!!

  81. THANK YOU

  82. QUESTION?

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