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gibiansky committed Jan 4, 2013
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== Convolutional Neural Networks for Dog Breed Identification ==
__Convolutional Neural Networks for Dog Breed Identification__

Using convolutional neural networks, this project aims to be able to distinguish what breed a dog is given its photograph. Using five different breeds with a total of approximately
25,000 training images, the neural network classifier achieves a classification rate of approximately 90%.
Expand All @@ -13,13 +13,13 @@ as well as Boxers. This yields a vector of "probabilities" for each image - sinc
each image is converted into a string of 10\*2 = 20 numbers between zero and one. A small fully connected neural network is then trained on this data in order
to give a final multi-class prediction. The classification rate on an independent test set is approximately 90%.

Files:
- neuralnetworks.py - implementation of neural networks and data processing using Theano
- mnist/ - example use of neuralnetworks.py library to recognize MNIST digits (reaches 98% recognition rate)
- all\_dogs.py - train a multi-class classifier for different breeds
- dogs.py - trains pairwise comparison networks
- pairs.py - run pairwise comparison networks on all input data
- pairtrain.py - train a post-processing step to convert the output of the pairwise networks into a multi-class prediction
__Files:__
* neuralnetworks.py - implementation of neural networks and data processing using Theano
* mnist/ - example use of neuralnetworks.py library to recognize MNIST digits (reaches 98% recognition rate)
* all\_dogs.py - train a multi-class classifier for different breeds
* dogs.py - trains pairwise comparison networks
* pairs.py - run pairwise comparison networks on all input data
* pairtrain.py - train a post-processing step to convert the output of the pairwise networks into a multi-class prediction

Data:
- imgs.tar.gz - dog photos sorted by breed. Each photo was resized to a 64x64 3-color image (losing aspect ratio). Data were obtained using Petfinder.com API.
__Data:__
* imgs.tar.gz - dog photos sorted by breed. Each photo was resized to a 64x64 3-color image (losing aspect ratio). Data were obtained using Petfinder.com API.

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