This is a Theano implementation of a convolutional neural network. It is possible to configure all the settings, including number of convolutional layers. The system also include hooks for a web interface, for monitoring experiments. A web interface can be used to stop a running job, and other things. The purpose of this system is to create a road extraction system.

• Nesterov momentum and RMSProp
• Easy configuration
• Dataset loader which generate examples from random subsets of an rotated image
• Hooks for web gui interface

• Theano
• Numpy
• Python 2.7
• Unirest

1. Install all dependencies

$ sudo apt-get install -y gcc g++ gfortran build-essential git wget linux-image-generic libopenblas-dev python-dev python-pip python-nose python-numpy python-scipy  

2. Install Theano

$ sudo pip install --upgrade --no-deps git+git://github.com/Theano/Theano.git  

3. Download Cuda 7 toolkit

$ sudo wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_7.0-28_amd64.deb  

4. Depackage Cuda

$ sudo dpkg -i cuda-repo-ubuntu1404_7.0-28_amd64.deb  

5. Install the cuda driver

$ sudo apt-get update

$ sudo apt-get install -y cuda   

6. Update the path to include cuda nvcc and ld_library_path, and then reboot.

$ echo -e "\nexport PATH=/usr/local/cuda/bin:$PATH\n\nexport LD_LIBRARY_PATH=/usr/local/cuda/lib64" >> .bashrc  

7. Create a theano config file

$ echo -e "\n[global]\nfloatX=float32\ndevice=gpu\n[mode]=FAST_RUN\n\n[nvcc]\nfastmath=True\n\n[cuda]\nroot=/usr/local/cuda" >> ~/.theanorc    

Preliminary guide. Check if this works for Windows

1. Install Visual Studio 2013 Community Edition
2. Download CUDA 7 toolkit
3. Install Anaconda Python 27
4. In Windows Command Prompt type

$ conda install mingw libpython

5. Use git to download Theano from GitHub
6. In the theano folder type:

$ python setup.py develop

7. Create a .theanorc file in your home directory and add

  [global]
  floatX = float32
  device = gpu

  [nvcc]
  flags=-LC:\Anaconda\libs
  compiler_bindir=C:\Program Files (x86)\Microsoft Visual Studio 13.0\VC\bin

Make sure the paths for anaconda and visual studio are correct.

##Profile In your .theanorc file, change or enter profile=True. Run system by command CUDA_LAUNCH_BLOCKING=1 python cnn.py