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9or
2010 Jun 11
2
Clustering algorithms don't find obvious clusters
I have a directed graph which is represented as a matrix on the form
0 4 0 1
6 0 0 0
0 1 0 5
0 0 4 0
Each row correspond to an author (A, B, C, D) and the values says how many
times this author have cited the other authors. Hence the first row says
that author A have cited author B four times and author D one time. Thus the
matrix represents two groups of authors: (A,B) and (C,D) who cites