Search Results for author: Christian Hennig

Found 4 papers, 0 papers with code

Inference for the proportional odds cumulative logit model with monotonicity constraints for ordinal predictors and ordinal response

no code implementations11 Jul 2021 Javier Espinosa, Christian Hennig

It is shown that estimators defined by optimization, such as maximum likelihood estimators, for an unconstrained model and for parameters in the interior set of the parameter space of a constrained model are asymptotically equivalent.

Clustering with the Average Silhouette Width

no code implementations24 Oct 2019 Fatima Batool, Christian Hennig

The new methods prove useful and sensible in many cases, but some weaknesses are also highlighted.

Distance for Functional Data Clustering Based on Smoothing Parameter Commutation

no code implementations10 Apr 2016 ShengLi Tzeng, Christian Hennig, Yu-Fen Li, Chien-Ju Lin

The intuitions are that smoothing parameters of smoothing splines reflect inverse signal-to-noise ratios and that applying an identical smoothing parameter the smoothed curves for two similar subjects are expected to be close.

Numerical Integration Outlier Detection

Recovering the number of clusters in data sets with noise features using feature rescaling factors

no code implementations22 Feb 2016 Renato Cordeiro de Amorim, Christian Hennig

In this paper we introduce three methods for re-scaling data sets aiming at improving the likelihood of clustering validity indexes to return the true number of spherical Gaussian clusters with additional noise features.

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