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As input data distributions evolve, the predictive performance of machine learning models tends to deteriorate. In practice, new input data tend to come without target labels. Then, state-of-the-art techniques model input data distributions…

Machine Learning · Computer Science 2023-09-08 Carlos Mougan , Klaus Broelemann , David Masip , Gjergji Kasneci , Thanassis Thiropanis , Steffen Staab

The notion of drift refers to the phenomenon that the distribution, which is underlying the observed data, changes over time. Albeit many attempts were made to deal with drift, formal notions of drift are application-dependent and…

Machine Learning · Computer Science 2019-12-05 Fabian Hinder , André Artelt , Barbara Hammer

Counterfactual explanation is one branch of interpretable machine learning that produces a perturbation sample to change the model's original decision. The generated samples can act as a recommendation for end-users to achieve their desired…

Machine Learning · Computer Science 2023-03-28 Tri Dung Duong , Qian Li , Guandong Xu

As complex machine learning models are increasingly used in sensitive applications like banking, trading or credit scoring, there is a growing demand for reliable explanation mechanisms. Local feature attribution methods have become a…

Machine Learning · Computer Science 2022-09-08 Johannes Haug , Alexander Braun , Stefan Zürn , Gjergji Kasneci

Non-stationarity of an underlying data generating process that leads to distributional changes over time is a key characteristic of Data Streams. This phenomenon, commonly referred to as Concept Drift, has been intensively studied, and…

Machine Learning · Computer Science 2026-02-09 Brandon Gower-Winter , Misja Groen , Georg Krempl

As AI models grow more complex, explainability is essential for building trust, yet concept-based counterfactual methods still face a trade-off between expressivity and efficiency. Representing underlying concepts as atomic sets is fast but…

Artificial Intelligence · Computer Science 2026-05-22 Angeliki Dimitriou , Nikolaos Chaidos , Maria Lymperaiou , Giorgos Filandrianos , Giorgos Stamou

Drift in machine learning refers to the phenomenon where the statistical properties of data or context, in which the model operates, change over time leading to a decrease in its performance. Therefore, maintaining a constant monitoring…

Computation and Language · Computer Science 2023-09-08 Saeed Khaki , Akhouri Abhinav Aditya , Zohar Karnin , Lan Ma , Olivia Pan , Samarth Marudheri Chandrashekar

The ability to detect and adapt to changes in data distributions is crucial to maintain the accuracy and reliability of machine learning models. Detection is generally approached by observing the drift of model performance from a global…

Machine Learning · Computer Science 2025-05-22 Flavio Giobergia , Eliana Pastor , Luca de Alfaro , Elena Baralis

Concept drift refers to gradual or sudden changes in the properties of data that affect the accuracy of machine learning models. In this paper, we address the problem of concept drift detection in the malware domain. Specifically, we…

Machine Learning · Computer Science 2026-03-17 Aniket Mishra , Mark Stamp

Data distributions in streaming environments are usually not stationary. In order to maintain a high predictive quality at all times, online learning models need to adapt to distributional changes, which are known as concept drift. The…

Machine Learning · Computer Science 2022-03-31 Johannes Haug , Gjergji Kasneci

Time-series data is widely studied in various scenarios, like weather forecast, stock market, customer behavior analysis. To comprehensively learn about the dynamic environments, it is necessary to comprehend features from multiple data…

Human-Computer Interaction · Computer Science 2020-08-19 Xumeng Wang , Wei Chen , Jiazhi Xia , Zexian Chen , Dongshi Xu , Xiangyang Wu , Mingliang Xu , Tobias Schreck

Counterfactual explanations (CE) explain model decisions by identifying input modifications that lead to different predictions. Most existing methods operate at the instance level. Distributional Counterfactual Explanations (DCE) extend…

Machine Learning · Computer Science 2026-03-18 Yikai Gu , Lele Cao , Bo Zhao , Lei Lei , Lei You

Continuous machine learning pipelines are common in industrial settings where models are periodically trained on data streams. Unfortunately, concept drifts may occur in data streams where the joint distribution of the data X and label y,…

Machine Learning · Computer Science 2023-12-18 Minsu Kim , Seong-Hyeon Hwang , Steven Euijong Whang

Data-driven predictive analytics are in use today across a number of industrial applications, but further integration is hindered by the requirement of similarity among model training and test data distributions. This paper addresses the…

Machine Learning · Computer Science 2017-10-20 Yunwen Xu , Rui Xu , Weizhong Yan , Paul Ardis

Data in the real world often has an evolving distribution. Thus, machine learning models trained on such data get outdated over time. This phenomenon is called model drift. Knowledge of this drift serves two purposes: (i) Retain an accurate…

Machine Learning · Computer Science 2025-03-11 Pranoy Panda , Kancheti Sai Srinivas , Vineeth N Balasubramanian , Gaurav Sinha

Concept drift refers to a non stationary learning problem over time. The training and the application data often mismatch in real life problems. In this report we present a context of concept drift problem 1. We focus on the issues relevant…

Artificial Intelligence · Computer Science 2010-10-25 Indrė Žliobaitė

The notion of concept drift refers to the phenomenon that the data generating distribution changes over time; as a consequence machine learning models may become inaccurate and need adjustment. In this paper we consider the problem of…

Machine Learning · Computer Science 2022-05-16 Fabian Hinder , André Artelt , Valerie Vaquet , Barbara Hammer

Many methods have been proposed to detect concept drift, i.e., the change in the distribution of streaming data, due to concept drift causes a decrease in the prediction accuracy of algorithms. However, the most of current detection methods…

Artificial Intelligence · Computer Science 2021-05-05 Hang Yu , Tianyu Liu , Jie Lu , Guangquan Zhang

Machine learning (ML) based time series forecasting models often require and assume certain degrees of stationarity in the data when producing forecasts. However, in many real-world situations, the data distributions are not stationary and…

Machine Learning · Computer Science 2023-04-05 Ziyi Liu , Rakshitha Godahewa , Kasun Bandara , Christoph Bergmeir

Rapidly changing business environments expose companies to high levels of uncertainty. This uncertainty manifests itself in significant changes that tend to occur over the lifetime of a process and possibly affect its performance. It is…

Artificial Intelligence · Computer Science 2021-09-14 Jan Niklas Adams , Sebastiaan J. van Zelst , Lara Quack , Kathrin Hausmann , Wil M. P. van der Aalst , Thomas Rose