Data clustering is the process of grouping data items so that similar items are placed in the same cluster. There are several different clustering techniques, and each technique has many variations.

All components share the same spherical covariance matrix. For estimating the similarity between two Gaussian mixtures, the L 2 L2 distance was chosen by the authors because there exists a closed-form ...

A mixture item response model is proposed for investigating individual differences in the selection of response categories in multiple-choice items. The model accounts for local dependence among ...