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Neural Networks from the Ground Up

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Did you ever wonder exactly how neural networks work?

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Neural Networks from the Ground Up

  1. 1. Neural Networks from the Ground up Frank La Vigne FranksWorld.com / DataDriven.tv / @tableteer / FranksWorld.tv FrankLa@microsoft.com
  2. 2. NeuralNetworks Whatdotheyknow? Dotheyknowthings?? Let’sFindOut!
  3. 3. DataSciencePodcast Data Driven Podcast  Launched June 2017  178 Episodes  Over 80,000 downloads  iTunes, Google Play, Spotify, Tune In, Facebook, etc
  4. 4. Writing  Regular column in MSDN Magazine  aka.ms/FrankMSDN  Two new books on Data Science  Yes, two  Yes, I’m quite possibly insane
  5. 5. UsuallyYouSeeThis  What is going on in this diagram?  How does this structure work?  Why does this structure work?
  6. 6. Inspired by Biology
  7. 7. CloserLookataNeuron
  8. 8. Santiago Ramón yCajal  Santiago Ramón y Cajal (1852-1934) ventured into science as both an artist and a pathologist and became the first person to see a neuron.  Working by gaslight, he made thin slices of brain tissue and subjected them to the same silver- nitrate chemistry he used to capture images on photographic plates.
  9. 9. Starting toLookFamiliar
  10. 10. Artificial Neural Networks  Modeled after biological neural networks  Activation functions  Pros  Amazing results  Cons  Lack of explainability  Computationally expensive  Complexity
  11. 11. ArtificialNeuron
  12. 12. Sigmoid
  13. 13. Rememberthis Graphic
  14. 14. CodeTime! http://bit.ly/frankadfcode https://notebooks.azure.com/FranksWorld/projects/Neural NetworksBasics
  15. 15. CONVOLUTIONAL NEURAL NETWORK dog bicycle apple tennis ball
  16. 16. CONVOLUTIONAL NEURAL NETWORK dog bicycle apple tennis ball
  17. 17. TRANSFER LEARNING
  18. 18. TRANSFER LEARNING hotdog not hotdog F1 F2 F3 F4 F5 F6 F7 F8
  19. 19. Questions?
  20. 20. Recommended Training
  21. 21. Contactme  frankla@Microsoft.com  @tableteer  FranksWorld.com  DataDriven.tv  aka.ms/FrankMSDN

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