deep-learning-from-scratch | Deep Learning from Scratch & quot ; ( O & # 39 ; Reilly Japan | Machine Learning library
kandi X-RAY | deep-learning-from-scratch Summary
kandi X-RAY | deep-learning-from-scratch Summary
"Deep Learning from Scratch" (O'Reilly Japan, 2016)
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Top functions reviewed by kandi - BETA
- Compute the gradient of the network
- Computes the loss of the last layer
- Predict the given input
- Calculates the gradient of the network
- Calculate the loss function
- Provide prediction for each layer
- Load MNIST dataset
- Change one hot label
- Calculate the numerical gradient of the loss function
- Predict input data
- Visualize filters
- Compute the accuracy of the model
- Calculate accuracy
- Compute the reduction of dout
- Predict the value of a function
- Backward computation
- Gradient descent
- Forward the image
- Compute the convolution matrix
- Shuffle a dataset
- Compute the gradient of the gradients
- Compute the gradient of the function
- Calculates the numerical gradient of the loss function
- Calculate numerical gradient
- Calculate the gradient of the network
- Calculate the numerical gradient of a function
deep-learning-from-scratch Key Features
deep-learning-from-scratch Examples and Code Snippets
Community Discussions
Trending Discussions on deep-learning-from-scratch
QUESTION
I’m trying to parallelize the following code (MCVE) by creating a task graph using dask.delayed
(or by implementing a computational graph myself):
ANSWER
Answered 2020-Mar-28 at 17:25I would recommend your current approach of passing through dependencies explicitly.
QUESTION
I'm reading an implementation of im2col from a deep learning book(At chapter 7, CNN), which its purpose is to transform a 4 dimensional array into 2 dimensional. I don't know why there is a 6 dimensional array in the implementation. I'm very interested about what's the idea behind the algorithm the author used.
I've tried to search many papers of the implementation of im2col, but none of them using high dimensional array like this. The currently materials I found useful for visualization of the process of im2col is the picture of this paper - HAL Id: inria-00112631
...ANSWER
Answered 2018-May-13 at 14:04It looks like this function is just rearranging each of the C
colour-channels in each of the N
images into a (out_h x out_w)
grid of overlapping image patches of size (filter_h x filter_w)
, and then flattening that into a 2d array where each row is a vector of pixels in an image patch.
The dimensions of the 6-D col
(before being transposed and reshaped) are:
[sample, channel, y_position_within_patch, x_position_within_patch, y_patch_index, x_patch_index]
So for example col[n, c, :, :, i, j]
will be a 2-d image patch (the i'th-patch from the top, and j'th from the left in the grid of image patches).
After the transpose and reshape, col[n*c*i*j, :]
will refer to this same image patch, but with all the pixels flattened into a vector.
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