I can't understand the red box. what do does that 1
do before {c(I)=j}
?
Also how does all the algorithms work? May someone explains the to steps more clearly by one example!
1 Answer
1_{c^(i) = j}
means if c^(i)
is equal to j
the value is 1 and zero otherwise.
In summary, k-means try to solve Voronoi cells for each mean point, and then update mean of members of a cell and update Voronoi cells again. This step is repeated until there is no change in members of the cells.
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$\begingroup$ Is
mu(j)
a vector? I am confused aboutI
andj
. what do counter these 2 letters? $\endgroup$ Dec 23, 2017 at 3:49 -
$\begingroup$ @user8663682
mu(j)
is mean of members of the clusterj
at each step, andc^(i)
is index of the cluster which is assigned to the point ofx_i
. $\endgroup$– OmGDec 23, 2017 at 10:51