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JosiahNet: live coding a GOLANG Deep Learning Library

Inspired by Joel Grus's youtube live coding of a deep learning frameworks, I wondered as a very new to GOLANG user could I live code a deep learning framework?

It ended up taking a few hours to code this up as I didn't have numpy as a starting point, but I found GOLANG to be very suitable for implementing a Deep Learning Library in Go with no dependencies.

Creating this way a great way for me to learn more about Go package creation and non-trivial uses of interfaces.

Things I might add to this library in the future:

  • Data Parallel training with Go Channels
  • MNIST example

Things this library is:

  • a simple self contained way to learn about deep learning
  • a way to learn about how matix algebra can be implemented from scratch
  • a fun toy example

Things this is not:

  • a production deep learning lib for Go, see: Gorgonia

To play with this yourself: go get github.com/thenomemac/josiahnet/jnet

Run the XOR example:

 2018-04-07 21:30:50 ⌚  thenome-lpc-13 in ~/gocode/src/github.com/thenomemac/josiahnet
○ → go run examples/xor.go 
----- Begin Training -----

Epoch/Loss: 0	| 87.865
Epoch/Loss: 10	| 1.928
Epoch/Loss: 20	| 1.261
Epoch/Loss: 30	| 0.906
Epoch/Loss: 40	| 0.667
Epoch/Loss: 50	| 0.492
Epoch/Loss: 60	| 0.365
Epoch/Loss: 70	| 0.281
Epoch/Loss: 80	| 0.220
Epoch/Loss: 90	| 0.170
Epoch/Loss: 100	| 0.132
Epoch/Loss: 110	| 0.103
Epoch/Loss: 120	| 0.080
Epoch/Loss: 130	| 0.062
Epoch/Loss: 140	| 0.048
Epoch/Loss: 150	| 0.038
Epoch/Loss: 160	| 0.030
Epoch/Loss: 170	| 0.023
Epoch/Loss: 180	| 0.018
Epoch/Loss: 190	| 0.015
Epoch/Loss: 200	| 0.012
Epoch/Loss: 210	| 0.009
Epoch/Loss: 220	| 0.008
Epoch/Loss: 230	| 0.006
Epoch/Loss: 240	| 0.005
Epoch/Loss: 250	| 0.004
Epoch/Loss: 260	| 0.003
Epoch/Loss: 270	| 0.003
Epoch/Loss: 280	| 0.002
Epoch/Loss: 290	| 0.002
Epoch/Loss: 300	| 0.001
Epoch/Loss: 310	| 0.001
Epoch/Loss: 320	| 0.001
Epoch/Loss: 330	| 0.001
Epoch/Loss: 340	| 0.001
Epoch/Loss: 350	| 0.001
Epoch/Loss: 360	| 0.000
Epoch/Loss: 370	| 0.000
Epoch/Loss: 380	| 0.000
Epoch/Loss: 390	| 0.000
Epoch/Loss: 400	| 0.000
Epoch/Loss: 410	| 0.000
Epoch/Loss: 420	| 0.000
Epoch/Loss: 430	| 0.000
Epoch/Loss: 440	| 0.000
Epoch/Loss: 450	| 0.000
Epoch/Loss: 460	| 0.000
Epoch/Loss: 470	| 0.000
Epoch/Loss: 480	| 0.000
Epoch/Loss: 490	| 0.000

----- End Training -----

Predictions:	 [0.9979224722394722 0.0026328332573238855 0.002664968993301098 0.9972001895643201]
Targets:	 [1 0 0 1]

And we're done! Deep Learning is fun.

FYI: Here's the plan of attack I followed while live coding this library:

  1. Tensors
  2. Loss Functions
  3. Layers
  4. Neural Nets
  5. Optimizers
  6. Data : ended up skipping this
  7. Training
  8. XOR Example

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Deep Learning Library in Go with no dependencies

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