Use whichever platform you prefer to work on – we will give references and hints for R and for Python.

Do one of the following tasks:

Task

Exercise 14.7.

Task

Implement SOM. Build a 2-dimensional map of the Iris dataset using your own implementation.

Task

Implement PCA. Build a 2-dimensional map of the Iris dataset using your own implementation. Determine what an optimal dimensionality for a PCA projection would be.

Task

Use a library implementation of SOM. Build a 2-dimensional map of the MNIST dataset.

Task

Use a library implementation of PCA. Build a 2-dimensional map of the MNIST dataset. Determine what an optimal dimensionality for a PCA projection would be.