no code implementations • 10 Aug 2023 • Sarah Leyder, Jakob Raymaekers, Tim Verdonck
TSLiNGAM leverages the non-Gaussianity assumption of the error terms in the LiNGAM model to obtain more efficient and robust estimation of the causal structure.
no code implementations • 8 Feb 2023 • Jakob Raymaekers, Peter J. Rousseeuw, Tim Verdonck, Ruicong Yao
Linear model trees are regression trees that incorporate linear models in the leaf nodes.
no code implementations • 27 Jul 2022 • Jakob Raymaekers, Peter J. Rousseeuw
On the other hand, cellwise outliers are individual cells in the data matrix.
no code implementations • 16 Jun 2021 • Jakob Raymaekers, Peter J. Rousseeuw
Here we pursue a different goal, which is to visualize the cases being classified, either in training data or in test data.
1 code implementation • 5 Jan 2021 • Jakob Raymaekers, Wouter Verbeke, Tim Verdonck
We present the results of a series of experiments in a fraud detection setting, which illustrate the effectiveness of the presented approach.
no code implementations • 2 Oct 2020 • Jakob Raymaekers, Ruben H. Zamar
We study a framework of regularized $K$-means methods based on direct penalization of the size of the cluster centers.
no code implementations • 28 Jul 2020 • Jakob Raymaekers, Peter J. Rousseeuw, Mia Hubert
A classification method first processes a training set of objects with given classes (labels), with the goal of afterward assigning new objects to one of these classes.
no code implementations • 16 May 2020 • Jakob Raymaekers, Peter J. Rousseeuw
Many real data sets contain numerical features (variables) whose distribution is far from normal (gaussian).