Machine Learning, Education, Scikit Learn, Unsupervised Learning, Clustering.
s(x, y) > s(x, z) if an observation x is more similar to observation y and less similar to observation z. A simple example of such a similarity metric is a negative square of distance s(x, y) = -||x — y||². Now, let’s describe “correspondence” by making two zero matrices. One of them, r, determines