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Table 1 Notions and symbols

From: A social learning analytics approach to cognitive apprenticeship

Symbol Description
X The input domain
C Number of clusters
μ c Initial centeroids of cluster
i,j Indices running over clusters
a,b Indices running over instances or output clusters’ labels
x a Input data instance x a X
y a Output cluster lable y a [C]
D(x a ,μ j ) Distance between instance x a and center of cluster j
C = Must-link constraints
C Cannot-link constraints
h =a r g m i n h O new Instance assignment that minimally increases the error terms