neural-networks-and-deep-learning | Code samples for my book "Neural Networks and Deep Learning" | Machine Learning library
kandi X-RAY | neural-networks-and-deep-learning Summary
kandi X-RAY | neural-networks-and-deep-learning Summary
This repository contains code samples for my book on "Neural Networks and Deep Learning". The code is written for Python 2.6 or 2.7. Michal Daniel Dobrzanski has a repository for Python 3 here. I will not be updating the current repository for Python 3 compatibility. The program src/network3.py uses version 0.6 or 0.7 of the Theano library. It needs modification for compatibility with later versions of the library. I will not be making such modifications. As the code is written to accompany the book, I don't intend to add new features. However, bug reports are welcome, and you should feel free to fork and modify the code.
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Top functions reviewed by kandi - BETA
- Make plots from a file
- Plots an overlaid overlays
- Plots the training accuracy
- Plot test accuracy
- Plot test cost
- Plot training cost on the training data
- Wrapper for load_data
- Load training data
- Return vectorized result
- Plot a rotated image
- Generates a matplotlib matplotlib
- Train a network
- Load the MNIST dataset
- Get images from training set
neural-networks-and-deep-learning Key Features
neural-networks-and-deep-learning Examples and Code Snippets
git clone https://github.com/farzaa/SimpleMultilayerPerceptron.git
cd SimpleMultilayerPerceptron
pip install numpy
python simple_mlp.py
def train(inputs, keys, weights):
for iter in xrange(20000):
prediction = applySigmoid(np.dot(inputs, weight
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import mnist_loader
training_data, validation_data, test_data = mnist_loader.load_data_wrapper()
import network
net = network.Network([784, 30, 10])
net.SGD(training_data, 30, 10, 3.0, test_data=test_data)
Community Discussions
Trending Discussions on neural-networks-and-deep-learning
QUESTION
The following has to do with implementing a neural network in python:
...ANSWER
Answered 2021-Sep-10 at 02:54They are not equivalent. The top one will sum nablas over minibatch. The bottom one will only keep values from the last sample.
QUESTION
I printed the vectorized form of the first training image of the mnist dataset of pytorch and https://github.com/mnielsen/neural-networks-and-deep-learning/tree/master/data . The difference seems too big for just floating point precision error.
Full Diff of first mnist train image: https://www.diffchecker.com/6y6YTFiN
Code to reproduce:
...ANSWER
Answered 2020-Oct-24 at 09:55MNIST images consist of pixel values that are integers in the range 0 to 255 (inclusive). To produce the tensors you are looking at, those integer values have been normalised to lie between 0.0 and 1,0, by dividing them all by some constant factor. It appears that your two sources chose different normalising factors: 255 in one case and 256 in the other.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install neural-networks-and-deep-learning
You can use neural-networks-and-deep-learning like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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