In unsupervised learning, we don’t have labeled data. We want to find structure in the data. Hence the data is of the form $X = {x_1, …, x_N}$ where $x_i \in \mathbb{R}^d$.
In unsupervised learning, we don’t have labeled data. We want to find structure in the data. Hence the data is of the form $X = {x_1, …, x_N}$ where $x_i \in \mathbb{R}^d$.