Conceptualizing Concept Drift
Isaac Roberts, Fabian Hinder, Valerie Vaquet, Alexander Schulz, Barbara Hammer · 2025
Concept drift refers to the phenomenon that the underlying data distribution changes over time.While detection methods or model adjustment methods exist, a proper explanation of drift in high-dimensional settings is still widely unsolved.This problem is crucial since it enables an understanding of the most prominent drift characteristics.In this work, we propose to explain concept drift of high-dimensional data objects by means of concept activation vectors which give rise to local, phase, and a novel, global explanation called the Concept 2 Drift Distribution.