We introduce a novel finite mixture model for biclustering ordinal data matrices, simultaneously clustering rows and columns within the Underlying Response Variable (URV) framework. Ordinal responses are modeled as discretizations of latent Gaussian variables, while component-specific covariance matrices are parsimonio...
M. Ranalli, F. Martella· Computational statistics (Ze...· 0 citations
We propose a novel multivariate hidden Markov model (HMM) designed to analyze longitudinal mixed-type data comprising continuous and ordinal variables. Our model identifies and prioritizes discriminative dimensions, i.e., those useful for clustering, while separating them from noise dimensions. By modeling variables...
M. Ranalli, R. Rocci, A. Maruotti· Journal of Classification· 0 citations
Background Survivorship considerations have gained increasing importance in patients with early breast cancer. Every surgical procedure poses a risk of complications and a potential negative impact on patient‐reported outcomes (PROs), thereby driving growing interest in de‐escalation strategies in breast cancer surgery...
Monica Pellegrino, F. Ioppolo, M. Ranalli et al.· The Breast Journal· 0 citations
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