no code implementations • 21 Sep 2021 • Xin Du, Subramanian Ramamoorthy, Wouter Duivesteijn, Jin Tian, Mykola Pechenizkiy
Specifically, we propose to leverage causal knowledge by regarding the distributional shifts in subpopulations and deployment environments as the results of interventions on the underlying system.
no code implementations • 7 Jan 2020 • Sibylle Hess, Wouter Duivesteijn, Decebal Mocanu
We formally prove that networks with a small Lipschitz modulus (which corresponds to a low susceptibility to adversarial attacks) map data points closer to the cluster centroids, which results in a mapping to a k-means-friendly space.
no code implementations • 4 Jul 2019 • Sibylle Hess, Wouter Duivesteijn
In this paper, we strive to determine the number of clusters by answering a simple question: given two clusters, is it likely that they jointly stem from a single distribution?
no code implementations • 1 Jul 2019 • Sibylle Hess, Wouter Duivesteijn, Philipp Honysz, Katharina Morik
When it comes to clustering nonconvex shapes, two paradigms are used to find the most suitable clustering: minimum cut and maximum density.
2 code implementations • 30 Apr 2019 • Xin Du, Lei Sun, Wouter Duivesteijn, Alexander Nikolaev, Mykola Pechenizkiy
The challenges for this problem are two-fold: on the one hand, we have to derive a causal estimator to estimate the causal quantity from observational data, where there exists confounding bias; on the other hand, we have to deal with the identification of CATE when the distribution of covariates in treatment and control groups are imbalanced.
no code implementations • 22 Aug 2018 • Oren Zeev-Ben-Mordehai, Wouter Duivesteijn, Mykola Pechenizkiy
Finding regions for which there is higher controversy among different classifiers is insightful with regards to the domain and our models.
no code implementations • 12 Oct 2017 • Jefrey Lijffijt, Bo Kang, Wouter Duivesteijn, Kai Puolamäki, Emilia Oikarinen, Tijl De Bie
The subgroup descriptions are in terms of a succinct set of arbitrarily-typed other attributes.