1. Np-hardness of euclidean sum-of-squares clustering;Aloise;Mach. Learn.,2009
2. An improved column generation algorithm for minimum sum-of-squares clustering;Daniel;Math. Program.,2012
3. Mining association rules between sets of items in large databases;Agrawal,1993
4. Probabilistic semi-supervised clustering with constraints;Basu,2006
5. Constrained k-means clustering;Bradley,2000