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First project of the Machine Learning Master's course at EPFL.

The goal of the project is to explore and compare different supervised learning algorithms and how they deal with a data-set from CERN in the field of physics, in order to best predict the presence of the Higgs Boson.

How to run the solution

Run the command: "python run.py"

The train and test csv files should be located in a folder named "data" one directory above the location of the run.py file. The predictions will be saved in a file named 'result_LS.csv'

Code Organization

We organized our codebase using several files:

  • implementations.py contains the mandatory functions together with some helper functions used in the implementation of the 6 mandatory ones.

  • run.py is the execution script.

Notes on some of the helper functions:

In the beginning of the run.py file we have placed some useful functions used throughout the code.

def  number_to_nan(tX)
def  nan_to_median(tX)
def  number_to_other_number(tX, new_value)

These functions are used in the data cleaning process, replacing the value -999 with other more useful information

def  accuracy(y_true, y_pred)

We found it more useful to calculate the accuracy of the predictions, instead of the Mean Squared Errors in some case. We used this function to do this

def  build_poly(x, degree)

We use this function for expanding our features to a higher dimension. For a detailed explanation on how it works and why we decided on doing the expansion this way, see the report

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