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wroscoe

HN member
Joined
Thu, Apr 01, 2010, 3:20 PM UTC
HN karma
19
Public activity
11 items

About wroscoe

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Recent public activity

  1. comment
    Comment #13563975

    I updated this post with some of the great feedback from the comments. Also I just ported the algo used by the last DIYRobocar race winner, CompoundEye. Here's that post: https://w…

  2. comment
    Comment #13468974

    Well shit. Thanks for pointing that out. I'll revise.

  3. comment
    Comment #13468219

    The input values are image arrays 120x160 pixels with 3 channels for red,green,blue. The values range from 0-255 and are not normalized before they are fed into the convolution lay…

  4. comment
    Comment #13467825

    Tensorflow anounced last week that it will incorporate Keras as its default higher level abstraction. It's a pleasure to use.

  5. comment
    Comment #13467814

    Traditional CV approaches are much easier to debug as well. I chose the ML approach with the assumption that it would be easier to build a robust autopilot that would work in many …

  6. comment
    Comment #13465060

    Yep, this was an exercise to compete in the DIYRobocars race in West Oakland last weekend. There were 9ish cars with 7 running end to end Tensorflow autopilots and the others using…

  7. comment
    Comment #13465015

    I'm working on adding the throttle. This is difficult because you need to drive the correct speed and stopping or running off course can mess up the training data. This project was…

  8. comment
    Comment #13464995

    The method to avoid overfitting was to use the model with the lowest validation loss, not training loss. I was able to change the track around my house with reasonable success. I t…

  9. comment
    Comment #13464975

    I copied this method of loading datasets from Keras. https://github.com/fchollet/keras/blob/master/keras/datasets... . What's a better alternative.

  10. comment
    Comment #13464949

    Donkey runs a client on the Pi and a remote server that runs Keras/Tensorflow.

  11. story