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Tutorial: Machine Learning for Environmental and Geosciences (MLEG)

This tutorial is split into two practical parts.

  1. ML_intro provides an introduction to classical Machine Learning approaches with sklearn.

  2. DL_tutorial introduces convolutional neural networks (CNNs) with keras and tensorflow.

Getting Started

Clone this repository to your local machine with:

git clone https://github.com/langnico/MLEG_tutorial.git

Download the required data for the "DL_tutorial" from this link:

https://drive.google.com/open?id=1KoR9ISddhHsecsZG0lmePNONYKOZns1E

Move the directories into the DL_tutorial/ directory. The directory tree should look like this:

  • DL_tutorial/
    • data/
    • model_weights/
    • pretrained_models_imageNet/

Prerequisites

We are going to write and execute the code in a jupyter notebook. The DL_tutorial will use keras with a tensorflow backend.

Therefore, we need to install:

  • python3
  • jupyter
  • tensorflow

Further we will need the python packages/modules:

  • sklearn
  • numpy
  • matplotlib
  • pandas
  • keras

Installing

We propose to install python via anaconda.

  1. Install Anaconda and read the Anaconda tutorial (20min)

  2. Create a new environment: conda create --name MLEGenv python=3.6

  3. Activate the new environment

    • Windows: activate MLEGenv
    • Linux and macOS: source activate MLEGenv

    --> now your terminal prompt should start with (MLEGenv)

  4. Install the following packages in your activated MLEGenv:

    conda install jupyter
    conda install scikit-learn
    conda install pandas
    conda install matplotlib
    conda install keras
    
  5. Install tensorflow following the: official installation instructions

Verify your installation

  1. In the activated MLEGenv type which jupyter. This should point to the python installation in your conda env e.g. /username/anaconda3/envs/DL_tutorial/bin/jupyter

  2. Open a terminal and go to the location of the file: installation_check.ipynb

    Then open the jupyter notebook with: jupyter notebook installation_check.ipynb

    NOTE: If this does not automatically open a browser showing the notebook, then open a browser (Firefox, Chrome) and type: http://localhost:8888/notebooks/installation_check.ipynb

    Then select the first cell containing the imports and click on the > Run Button. If your installation was successful, the output should be like this:

    Using TensorFlow backend.
    successfully imported
    keras version:  2.2.4
    

Code inspirations

Authors

  • Riccardo De Lutio
  • Mikhail Usvyatsov
  • Nico Lang