Description Usage Arguments Details Value Examples
This function computes the sum of squared Euclidean distance of each observation to its nearest center.
1 | cumulative_loss(centers, observations)
|
centers |
a matrix containing m centers of length d, where each row corresponds to coordinates of a center. |
observations |
a matrix containing T observations of length d, where each row of the matrix is an observation of length d. |
Given a set C of m centers of length d (i.e., C = {c_{1}, c_{2}, …, c_{m}}) and a set X of T observations of length d (i.e., X = {x_{1}, x_{2}, …, x_{T}}), this function computes the sum of squared euclidean distance of each observation in X to its nearest center in C, i.e.,
S_{T}(C) =∑_{t=1,2,…,T} min_{1<= i <= m}|x_{t}-c_{i}|_{2}^{2}.
The sum of squared Euclidean distance of each of T observations in matrix observations
to its nearest center within centers
.
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