dnnet 0.9.0

Deep Neural Network.

dnnet

Implementation of Deep Neural Network with numpy. Less dependencies, easier to use.

Get started

Setup Python Virtual Environment

Assumption

• Use python3
• Make directory for pyenv in "/home//Documents"
• Root directory of your python virtual env is in "/home//Work/py352_ws"
• "/home//Work/py352_ws/" is your working directory

Setup procedure

• Install required packages

$ sudo apt-get install git gcc make openssl libssl-dev libbz2-dev libreadline-dev libsqlite3-dev

• Install tkinter(This is required to use matplotlib in virtualenv)

$ sudo apt-get install python3-tk python-tk tk-dev

• Install pyenv

   $ cd ~
   $ git clone git://github.com/yyuu/pyenv.git ./pyenv
   $ mkdir -p ./pyenv/versions ./pyenv/shims

• Set paths Add the following description in ~/.bashrc

export PYENV_ROOT=${HOME}/Documents/pyenv
if [ -d "${PYENV_ROOT}" ]; then
  export PATH=${PYENV_ROOT}/bin:$PATH
  eval "$(pyenv init -)"
fi

And then execute the follows.

   $ exec $SHELL -l
   $ . ~/.bashrc

• Install pyenv-virtualenv

   $ cd $PYENV_ROOT/plugins
   $ git clone git://github.com/yyuu/pyenv-virtualenv.git

• Install python 3.5.2

If you're going to use theano in the resulting env,

env PYTHON_CONFIGURE_OPTS=--enable-shared pyenv install 3.5.2

else ...

   $ pyenv install 3.5.2

• Setup local pyenv

   $ mkdir -p ~/Work/py352_ws
   $ pyenv virtualenv 3.5.2 <name of this environment>

can be like py352_env, python3_env, or anything you like.
Here, it's assumed that you named the environment as "py352_env".

   $ cd ~/Work/py352_ws
   $ pyenv local py352_env
   $ pip install --upgrade pip

Install requisites

• python-3.5+ (Already installed)
• numpy
• matplotlib

Go to your virtual environment like /home//Work/py352_ws, and do the follows.

pip install numpy
pip install matplotlib

Example

MNIST

• Run neural network for mnist.

cd <path-to-dnnet>/examples/mnist
python mnist.py

If you get an error "ImportError: Python is not installed as a framework.", it might be because of matplotlib issue.(This happened to me when working with MacOS.)

In the case, please try the follow.

cd ~/.matplotlib
echo "backend: TkAgg" >> matplotlibrc

Use in your scripts.

import sys
sys.path.append('<path-to-dnnet-root-dir>')

from dnnet.neuralnet import NeuralNetwork

For example, if dnnet directory is in ~/Work/dnnet, do like below.

import os
import sys
sys.path.append(os.path.join(os.getenv('HOME'), 'Work/dnnet'))

from dnnet.neuralnet import NeuralNetwork