Search Results for author: Marco Heyden

Found 3 papers, 1 papers with code

Adaptive Bernstein Change Detector for High-Dimensional Data Streams

1 code implementation22 Jun 2023 Marco Heyden, Edouard Fouché, Vadim Arzamasov, Tanja Fenn, Florian Kalinke, Klemens Böhm

In high-dimensional data, change detectors should not only be able to identify when changes happen, but also in which subspace they occur.

Change Detection

Budgeted Multi-Armed Bandits with Asymmetric Confidence Intervals

no code implementations12 Jun 2023 Marco Heyden, Vadim Arzamasov, Edouard Fouché, Klemens Böhm

We study the stochastic Budgeted Multi-Armed Bandit (MAB) problem, where a player chooses from $K$ arms with unknown expected rewards and costs.

Multi-Armed Bandits

Maximum Mean Discrepancy on Exponential Windows for Online Change Detection

no code implementations25 May 2022 Florian Kalinke, Marco Heyden, Edouard Fouché, Klemens Böhm

Detecting changes is of fundamental importance when analyzing data streams and has many applications, e. g., predictive maintenance, fraud detection, or medicine.

Change Detection Fraud Detection

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