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These methods typically treat missing values as absent information, rather than recognizing them as valuable for profiling population characteristics. To address this gap, we introduce a Bayesian nonparametric model for co-clustering multivariate ordinal data that treats censored observations as informative, rather than merely missing. We demonstrate that this offers a significant improvement in understanding the underlying structure of the data. Our model exploits the flexibility of two independent Dirichlet processes, allowing us to infer potentially distinct subpopulations that characterize the latent structure of both subjects and variables. The ordinal nature of the data is addressed by introducing latent variables, while a matrix factorization specification is adopted to handle the high dimensionality of the data in a parsimonious way. The conjugate structure of the model enables an explicit derivation of the full conditional distributions of all the random variables in the model, which facilitates seamless posterior inference using a Gibbs sampling algorithm. We demonstrate the method\u2019s performance through simulations and by analyzing politician and movie ratings data.<\/jats:p>","DOI":"10.1007\/s11222-025-10703-w","type":"journal-article","created":{"date-parts":[[2025,8,5]],"date-time":"2025-08-05T05:53:41Z","timestamp":1754373221000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Bayesian Model for Co-clustering Ordinal Data with Informative Missing Entries"],"prefix":"10.1007","volume":"35","author":[{"given":"Alice","family":"Giampino","sequence":"first","affiliation":[]},{"given":"Antonio","family":"Canale","sequence":"additional","affiliation":[]},{"given":"Bernardo","family":"Nipoti","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2025,8,5]]},"reference":[{"issue":"422","key":"10703_CR1","doi-asserted-by":"publisher","first-page":"669","DOI":"10.1080\/01621459.1993.10476321","volume":"88","author":"JH Albert","year":"1993","unstructured":"Albert, J.H., Chib, S.: Bayesian analysis of binary and polychotomous response data. 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