Clustering Using EM and CEM , Cluster Number Selection Via the Von Mises-Fisher Mixture Models
Wafia Parr Bouberima, Mohamed Nadif, Yamina Khemal Bencheikh · International Journal of Open Problems in Computer Science and Mathematics · 2013
We consider the clustering problem of directional data and specically the choice of the number of clusters. Setting this problem under the mixture approach, we perform a comparative study of dierent criteria. Monte Carlo simulations are