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Deep ensembles perform better than a single network thanks to the diversity among their members. Recent approaches regularize predictions to increase diversity; however, they also drastically decrease individual members' performances. In…

机器学习 · 计算机科学 2021-01-15 Alexandre Rame , Matthieu Cord

We propose an online method for concept driftdetection based on dynamic classifier ensemble selection. Theproposed method generates a pool of ensembles by promotingdiversity among classifier members and chooses expert ensemblesaccording to…

Ensemble models are widely used to solve complex tasks by their decomposition into multiple simpler tasks, each one solved locally by a single member of the ensemble. Decoding of error-correction codes is a hard problem due to the curse of…

信息论 · 计算机科学 2020-05-12 Tomer Raviv , Nir Raviv , Yair Be'ery

The ensemble of deep neural networks has been shown, both theoretically and empirically, to improve generalization accuracy on the unseen test set. However, the high training cost hinders its efficiency since we need a sufficient number of…

机器学习 · 计算机科学 2021-12-28 Wentao Zhang , Jiawei Jiang , Yingxia Shao , Bin Cui

Deep learning based approaches have achieved significant progresses in different tasks like classification, detection, segmentation, and so on. Ensemble learning is widely known to further improve performance by combining multiple…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Danlu Chen , Xu-Yao Zhang , Wei Zhang , Yao Lu , Xiuli Li , Tao Mei

Class imbalance, overlap, and noise degrade data quality, reduce model reliability, and limit generalization. Although widely studied in binary classification, these issues remain underexplored in multi-class settings, where complex…

机器学习 · 计算机科学 2026-02-25 Soufiane Bacha , Laouni Djafri , Sahraoui Dhelim , Huansheng Ning

Ensemble methods can deliver surprising performance gains but also bring significantly higher computational costs, e.g., can be up to 2048X in large-scale ensemble tasks. However, we found that the majority of computations in ensemble…

机器学习 · 计算机科学 2023-01-31 Ziyue Li , Kan Ren , Yifan Yang , Xinyang Jiang , Yuqing Yang , Dongsheng Li

Model selection is a strategy aimed at creating accurate and robust models. A key challenge in designing these algorithms is identifying the optimal model for classifying any particular input sample. This paper addresses this challenge and…

机器学习 · 计算机科学 2023-05-22 James Kotary , Vincenzo Di Vito , Ferdinando Fioretto

Dynamic Selection (DS), where base classifiers are chosen from a classifier's pool for each new instance at test time, has shown to be highly effective in pattern recognition. However, instability and redundancy in the classifier pools can…

机器学习 · 计算机科学 2024-07-11 Hesam Jalalian , Rafael M. O. Cruz

Selecting high-quality data can improve the pretraining efficiency of large language models (LLMs). Existing methods generally rely on heuristic techniques or single quality signals, limiting their ability to evaluate data quality…

计算与语言 · 计算机科学 2025-05-23 Liangyu Xu , Xuemiao Zhang , Feiyu Duan , Sirui Wang , Rongxiang Weng , Jingang Wang , Xunliang Cai

Ensembling a neural network is a widely recognized approach to enhance model performance, estimate uncertainty, and improve robustness in deep supervised learning. However, deep ensembles often come with high computational costs and memory…

We propose selective debiasing -- an inference-time safety mechanism designed to enhance the overall model quality in terms of prediction performance and fairness, especially in scenarios where retraining the model is impractical. The…

计算与语言 · 计算机科学 2025-03-12 Gleb Kuzmin , Neemesh Yadav , Ivan Smirnov , Timothy Baldwin , Artem Shelmanov

In a given classification task, the accuracy of the learner is often hampered by finiteness of the training set, high-dimensionality of the feature space and severe overlap between classes. In the context of interpretable learners, with…

机器学习 · 计算机科学 2025-04-03 Marco Canducci , Lida Abdi , Alessandro Prete , Roland J. Veen , Michael Biehl , Wiebke Arlt , Peter Tino

Model ensembles are becoming one of the most effective approaches for improving object detection performance already optimized for a single detector. Conventional methods directly fuse bounding boxes but typically fail to consider proposal…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Mingyuan Mao , Baochang Zhang , David Doermann , Jie Guo , Shumin Han , Yuan Feng , Xiaodi Wang , Errui Ding

Decision-tree-based ensemble classification methods (DTEMs) are a prevalent tool for supervised anomaly detection. However, due to the continued growth of datasets, DTEMs result in increasing drawbacks such as growing memory footprints,…

机器学习 · 计算机科学 2020-01-10 Shay Vargaftik , Isaac Keslassy , Ariel Orda , Yaniv Ben-Itzhak

Diversity in demonstration selection is critical for enhancing model generalization by enabling broader coverage of structures and concepts. Constructing appropriate demonstration sets remains a key research challenge. This paper introduces…

人工智能 · 计算机科学 2025-05-27 Xubin Wang , Jianfei Wu , Yichen Yuan , Deyu Cai , Mingzhe Li , Weijia Jia

Training reliable respiratory sound classification models remains challenging due to the limited size and subject diversity of datasets. Ensemble methods can improve robustness, but when base models are trained on identical data, models…

机器学习 · 计算机科学 2026-04-28 June-Woo Kim , Miika Toikkanen , Heejoon Koo , Yoon Tae Kim , Doyoung Kwon , Kyunghoon Kim

Acoustic scene classification is an intricate problem for a machine. As an emerging field of research, deep Convolutional Neural Networks (CNN) achieve convincing results. In this paper, we explore the use of multi-scale Dense connected…

计算机视觉与模式识别 · 计算机科学 2018-06-13 Dawei Feng , Kele Xu , Haibo Mi , Feifan Liao , Yan Zhou

We typically compute aggregate statistics on held-out test data to assess the generalization of machine learning models. However, statistics on test data often overstate model generalization, and thus, the performance of deployed machine…

机器学习 · 计算机科学 2021-02-12 Dylan Slack , Nathalie Rauschmayr , Krishnaram Kenthapadi

Deep ensembles are capable of achieving state-of-the-art results in classification and out-of-distribution (OOD) detection. However, their effectiveness is limited due to the homogeneity of learned patterns within ensembles. To overcome…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Stanislav Dereka , Ivan Karpukhin , Maksim Zhdanov , Sergey Kolesnikov