Recombining observations in cluster analysis: the SAGRA method
This thesis wants to answer the question of how we can recombine this small homogeneous groups to reconstruct the structure of the data set
This thesis wants to answer the question of how we can recombine this small homogeneous groups to reconstruct the structure of the data set
We introduce SAGRA (Split And Group Recombining Algorithm), a cluster analysis methodology which split the data set into small homogeneous groups and later recombine those groups using Bayes factors.
We develop an algorithm that integrates a splitting process inherited from the SAR algorithm (Peña et al., 2004) with unimodality tests such as the dip test proposed by Hartigan and Hartigan (1985), and finally, we use anetwork configuration to visualize the results
This article discusses the problem of forming groups from previously split data.