A bivariate model for retinal image identification in lambs |
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| Institution: | 1. Institute for High Performance Computing and Networking, CNR, Via Pietro Castellino 111, 80131 Naples, Italy;2. Università di Napoli Federico II, Via Claudio 21, 80125 Naples, Italy;3. Institute of Cybernetics E. Caianiello, CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy |
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| Abstract: | In this paper we introduce the one-inflated bivariate Beta distribution as a new approach to analyze matching scores related to retinal image identification in lambs. These kind of data sets present many values equal to one, the perfect matching, and this justifies the introduction of one-inflation patterns. In addition, matching scores are correlated according to several bivariate patterns: left and right eye, 3 and 12 months of age, etc. Some examples of applications are given. |
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