Autore:
Liseo, Brunero
Titolo:
A novel Bayesian approach to matching and size population problemsPeriodico:
Università degli Studi di Roma "La Sapienza" - Dipartimento di Studi Geoeconomici, Linguistici, Statistici e Storici per l'Analisi regionale. Working papersAnno:
2009 - Fascicolo:
65 - Pagina iniziale:
1 - Pagina finale:
22We propose and illustrate a novel hierarchical Bayesian approach for matching statistical records observed in different occasions. We show how this model can be profitably adopted both in record linkage problems and in capture-recapture setups,where the size of a finite population is the real object of interest. There are at least two important differences among the proposed model-based approach and the current practice in record linkage: the statistical model is built up on the actually observed categorical variables and no reduction (to 0-1
comparisons) of the available information takes place. Second, the model is flexible enough to be used both for record linkage tasks and population size estimation problems. Among the many pros of a Bayesian approach we need to mention that the hierarchical structure of the model allows a two-way propagation of the uncertainty between the parameter estimation step and the matching procedure: no plug-in estimates are used. We illustrate and motivate the method through a real data problem.
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