[PYTHON] I stumbled upon trying Pylearn 2

Introduction

• I caught some articles (references) because I wanted to try Deep Learning, which is popular (?) On MacBook Air (2012).
• I followed the procedure of the reference site almost as it was, and saved it as a memorandum because there were some places I was addicted to at that time.
• For scripts and other details, go to that site
• For the time being, I loaded some images and tried to display an image like that

Environment

• Install Python, git, pip, numpy, scipy
• Install Theano

python

pip install theano

• Install Pylearn 2

python

pip install pillow
pip install PyYAML
pip install IPython
pip install Cython

git clone git://github.com/lisa-lab/pylearn2.git
python setup.py develop

Where I was addicted to so far

python

ImportError: No module named numpy

• When I run setup.py of Pylearn2, import numpy is not found?
• I tried to deal with it referring to the following, but it did not heal well
  • http://d.hatena.ne.jp/aremokoremo/20140507/1399475248
• I checked the environment variable (~ / .bash_profile) and checked the path.
• Add the path of site-packages where numpy is placed for the time being as a first aid
• Reload environment variables (source ~ / .bash_profile)

python

===============================
00001	#include <Python.h>
00002	#include "structmember.h"
00003	#include <sys/time.h>
~~~~~~~~~Abbreviation~~~~~~~~~
Exception: Compilation failed (return status=1): /Users/user-name/.theano/compiledir_Darwin-14.5.0-x86_64-i386-64bit-i386-2.7.8-64/lazylinker_ext/mod.cpp:1:10: fatal error: 'Python.h' file not found. #include <Python.h>.          ^. 1 error generated.. 

• Error Python.h cannot be found in import theano?
• I feel that the environment is finally broken, so check with a brew doctor
• Erase the error contents one by one (Ask Google teacher about the error contents and there is a solution
• By the way, I did brew update

Run

procedure

1. Collect images of the same size

• Pick up jpg images that you want to learn from Google (about 10)

2. Use a script to grayscale & csv

• Run img2csv.py on the site

• If you are told that the Image module cannot be found, change the 2nd to 4th lines to the following

  from PIL import Image
  from PIL import ImageOps
  from PIL import ImageFilter
  

• Execute the following command as per the site

  python img2csv.py grayscale converted.jpg list train.csv
  

• I couldn't pass the list well here, so read the code and run it below

  python img2csv.py "../img/*.jpg " train.csv
  

3. Learn

• Put hoge_dataset.py for your site in pylearn2 / datasets /

• Set the following in the environment variables

• export PYLEARN2_DATA_PATH = the path where train.csv and grbm.yaml are located * export PYLEARN2_VIEWER_COMMAND="open -Wn"

• Learn

   ```command: 
   train.py grbm.yaml
   ```
  

4. Display the learning results

• Display command

   ```command: 
   show_weights.py grbm.pkl
   ```    
  

Where I was addicted to so far

Learning time

• It takes longer than I expected
• It took about 20 minutes to execute using 10 images of 150 * 150

Display (drawing) of learning results

• I got the following error when displaying the learning result

UserWarning: Unable to import matplotlib. Some features unavailable. Original exception: No module named matplotlib.pyplot "Original exception: " + str(matplotlib_exception)) ```

• Add matplotlib with the following command and check the operation safely

  pip install matplotlib
  

References

http://kensuke-mi.xyz/kensuke-mi_diary/2014/11/rbma.html http://d.hatena.ne.jp/aremokoremo/20140507/1399475248