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One important assumption underlying common classification models is the stationarity of the data. However, in real-world streaming applications, the data concept indicated by the joint distribution of feature and label is not stationary but…

机器学习 · 计算机科学 2018-08-10 Shujian Yu , Xiaoyang Wang , Jose C. Principe

Time series data is prevalent in a wide variety of real-world applications and it calls for trustworthy and explainable models for people to understand and fully trust decisions made by AI solutions. We consider the problem of building…

机器学习 · 计算机科学 2020-11-25 Tsung-Yu Hsieh , Suhang Wang , Yiwei Sun , Vasant Honavar

This research proposes a novel drift detection methodology for machine learning (ML) models based on the concept of ''deformation'' in the vector space representation of data. Recognizing that new data can act as forces stretching,…

机器学习 · 计算机科学 2024-11-06 Giancarlo Cobino , Simone Farci

In data streams, the data distribution of arriving observations at different time points may change - a phenomenon called concept drift. While detecting concept drift is a relatively mature area of study, solutions to the uncertainty…

机器学习 · 计算机科学 2020-08-11 Anjin Liu , Jie Lu , Guangquan Zhang

Time series is a collection of data instances that are ordered according to a time stamp. Stock prices, temperature, etc are examples of time series data in real life. Time series data are used for forecasting sales, predicting trends.…

人机交互 · 计算机科学 2024-04-25 Sathya Krishnan Suresh , Shunmugapriya P

Machine learning models nowadays play a crucial role for many applications in business and industry. However, models only start adding value as soon as they are deployed into production. One challenge of deployed models is the effect of…

机器学习 · 计算机科学 2020-11-06 Lucas Baier , Vincent Kellner , Niklas Kühl , Gerhard Satzger

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…

人工智能 · 计算机科学 2021-05-05 Hang Yu , Tianyu Liu , Jie Lu , Guangquan Zhang

Data stream learning has been largely studied for extracting knowledge structures from continuous and rapid data records. In the semantic Web, data is interpreted in ontologies and its ordered sequence is represented as an ontology stream.…

人工智能 · 计算机科学 2017-04-26 Freddy Lecue , Jiaoyan Chen , Jeff Pan , Huajun Chen

Despite their remarkable performance on a wide range of visual tasks, machine learning technologies often succumb to data distribution shifts. Consequently, a range of recent work explores techniques for detecting these shifts.…

机器学习 · 计算机科学 2021-05-04 Maleakhi A. Wijaya , Dmitry Kazhdan , Botty Dimanov , Mateja Jamnik

Many optimization tasks involve streaming data with unknown concept drifts, posing a significant challenge as Streaming Data-Driven Optimization (SDDO). Existing methods, while leveraging surrogate model approximation and historical…

机器学习 · 计算机科学 2025-12-09 Yuan-Ting Zhong , Ting Huang , Xiaolin Xiao , Yue-Jiao Gong

When monitoring machine learning systems, two-sample tests of homogeneity form the foundation upon which existing approaches to drift detection build. They are used to test for evidence that the distribution underlying recent deployment…

机器学习 · 统计学 2022-08-03 Oliver Cobb , Arnaud Van Looveren

Scatterplots are one of the simplest and most commonly-used visualizations for understanding quantitative, multidimensional data. However, since scatterplots only depict two attributes at a time, analysts often need to manually generate and…

人机交互 · 计算机科学 2019-07-30 Doris Jung-Lin Lee , Jaewoo Kim , Renxuan Wang , Aditya Parameswaran

The current development of today's production industry towards seamless sensor-based monitoring is paving the way for concepts such as Predictive Maintenance. By this means, the condition of plants and products in future production lines…

机器学习 · 计算机科学 2021-08-22 Jan Zenisek , Gabriel Kronberger , Josef Wolfartsberger , Norbert Wild , Michael Affenzeller

As next-generation networks materialize, increasing levels of intelligence are required. Federated Learning has been identified as a key enabling technology of intelligent and distributed networks; however, it is prone to concept drift as…

机器学习 · 计算机科学 2022-02-07 Dimitrios Michael Manias , Ibrahim Shaer , Li Yang , Abdallah Shami

This article studies how to detect and explain concept drift. Human activity recognition is used as a case study together with a online batch learning situation where the quality of the labels used in the model updating process starts to…

机器学习 · 计算机科学 2023-01-23 Pekka Siirtola , Juha Röning

Despite the popularisation of machine learning models, more often than not, they still operate as black boxes with no insight into what is happening inside the model. There exist a few methods that allow to visualise and explain why a model…

机器学习 · 计算机科学 2021-06-18 Błażej Leporowski , Alexandros Iosifidis

Concept discovery is one of the open problems in the interpretability literature that is important for bridging the gap between non-deep learning experts and model end-users. Among current formulations, concepts defines them by as a…

机器学习 · 计算机科学 2022-02-11 Adrianna Janik , Kris Sankaran

While many real-world data streams imply that they change frequently in a nonstationary way, most of deep learning methods optimize neural networks on training data, and this leads to severe performance degradation when dataset shift…

机器学习 · 计算机科学 2021-07-02 Wonju Lee , Seok-Yong Byun , Jooeun Kim , Minje Park , Kirill Chechil

A key aspect of automating predictive machine learning entails the capability of properly triggering the update of the trained model. To this aim, suitable automatic solutions to self-assess the prediction quality and the data distribution…

机器学习 · 计算机科学 2019-07-19 Tania Cerquitelli , Stefano Proto , Francesco Ventura , Daniele Apiletti , Elena Baralis

Predictive services nowadays play an important role across all business sectors. However, deployed machine learning models are challenged by changing data streams over time which is described as concept drift. Prediction quality of models…

机器学习 · 计算机科学 2020-12-09 Lucas Baier , Josua Reimold , Niklas Kühl