Brenda Betancourt - Colloquium Speaker

Assistant Professor, Department of Statistics, University of Florida
Thursday, March 25, 2021 - 3:15pm
Colloquium Title: 
A Prior for Record Linkage Based on Allelic Partitions


In database management, record linkage aims to identify multiple records that correspond to the same individual. This task can be treated as a clustering problem, in which a latent entity is associated with one or more noisy database records. However, in contrast to traditional clustering applications, a large number of clusters with a few observations per cluster is expected in this context. In this paper, we introduce a new class of prior distributions based on allelic partitions that is specially suited for the small cluster setting of record linkage. Our approach makes it straightforward to introduce prior information about the cluster size distribution at different scales, and naturally enforces sublinear growth of the maximum cluster size – known as the microclustering property. We also introduce a set of novel microclustering conditions in order to impose further constraints on the cluster sizes a priori. We evaluate the performance of our proposed class of priors using simulated data and three official statistics data sets, and show that our models provide competitive results compared to state-of-the-art microclustering models in the record linkage literature. Moreover, we compare the performance of different loss functions for optimal point estimation of the partitions using decision-theoretical based approaches recently proposed in the literature.


Everyone is welcome to join! Please note that the meeting opens at 3:15pm, and the presentation is at 3:30-4:20pm. There will be time afterward for Q&A with the speaker.

Topic: Colloquia: Department of Statistics and Actuarial Science, The University of Iowa

Time: Mar 25, 2021 03:15 PM Central Time (US and Canada)

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Meeting ID: 949 5289 2803