Robust maximum likelihood estimation of latent class models

Bartolucci, Francesco and Francis, Brian and Pandolfi, Silvia and Pennoni, Fulvia (2015) Robust maximum likelihood estimation of latent class models. In: Proceedings of the 30th International Workshop on Statistical Modelling : Proceedings Volume 1. johannes Kepler University, Linz, Linz, Austria, pp. 94-99.

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Abstract

We develop a suitable reweighting approach to deal with outliers when maximum likelihood estimation is used to estimate latent class models. In such a context, the EM algorithm is used and the presence of outliers and spurious observations is common. The Proposed method is motivated by an application aimed at finding clusters of offending behaviours.