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Ensemble pruning, selecting a subset of individual learners from an original ensemble, alleviates the deficiencies of ensemble learning on the cost of time and space. Accuracy and diversity serve as two crucial factors while they usually…

机器学习 · 计算机科学 2021-01-20 Yijun Bian , Yijun Wang , Yaqiang Yao , Huanhuan Chen

Class imbalance is a characteristic known for making learning more challenging for classification models as they may end up biased towards the majority class. A promising approach among the ensemble-based methods in the context of imbalance…

机器学习 · 计算机科学 2022-06-20 Mariana A. Souza , Robert Sabourin , George D. C. Cavalcanti , Rafael M. O. Cruz

Ensemble learning has been a focal point of machine learning research due to its potential to improve predictive performance. This study revisits the foundational work on ensemble error decomposition, historically confined to…

机器学习 · 计算机科学 2024-02-13 João Mendes-Moreira , Tiago Mendes-Neves

We consider dimension reduction for regression or classification in which the predictors are matrix- or array-valued. This type of predictor arises when measurements are obtained for each combination of two or more underlying variables--for…

统计理论 · 数学 2010-02-26 Bing Li , Min Kyung Kim , Naomi Altman

When performing classification tasks, raw high dimensional features often contain redundant information, and lead to increased computational complexity and overfitting. In this paper, we assume the data samples lie on a single underlying…

图像与视频处理 · 电气工程与系统科学 2020-08-11 Bowen Jiang , Maohao Shen

In Machine Learning, ensemble methods have been receiving a great deal of attention. Techniques such as Bagging and Boosting have been successfully applied to a variety of problems. Nevertheless, such techniques are still susceptible to the…

This proposes a novel ensemble deep learning-based model to accurately classify, detect and localize different defect categories for aggressive pitches and thin resists (High NA applications).In particular, we train RetinaNet models using…

图像与视频处理 · 电气工程与系统科学 2022-06-29 Bappaditya Deya , Dipam Goswamif , Sandip Haldera , Kasem Khalilb , Philippe Leraya , Magdy A. Bayoumi

Fair scores reward ensemble forecast members that behave like samples from the same distribution as the verifying observations. They are therefore an attractive choice as loss functions to train data-driven ensemble forecasts or…

大气与海洋物理 · 物理学 2026-02-18 Christopher David Roberts

A method for dimension reduction with clustering, classification, or discriminant analysis is introduced. This mixture model-based approach is based on fitting generalized hyperbolic mixtures on a reduced subspace within the paradigm of…

统计方法学 · 统计学 2017-10-09 Katherine Morris , Paul D. McNicholas

Modeling data as being sampled from a union of independent subspaces has been widely applied to a number of real world applications. However, dimensionality reduction approaches that theoretically preserve this independence assumption have…

机器学习 · 计算机科学 2016-04-08 Devansh Arpit , Ifeoma Nwogu , Venu Govindaraju

Dynamic ensemble selection systems work by estimating the level of competence of each classifier from a pool of classifiers. Only the most competent ones are selected to classify a given test sample. This is achieved by defining a criterion…

机器学习 · 计算机科学 2020-03-06 Rafael M. O. Cruz , Robert Sabourin , George D. C. Cavalcanti , Tsang Ing Ren

In this study, we introduce an ensemble-based approach for online machine learning. The ensemble of base classifiers in our approach is obtained by learning Naive Bayes classifiers on different training sets which are generated by…

机器学习 · 计算机科学 2017-04-27 Tien Thanh Nguyen , Thi Thu Thuy Nguyen , Xuan Cuong Pham , Alan Wee-Chung Liew , James C. Bezdek

Deep metric learning aims to learn an embedding function, modeled as deep neural network. This embedding function usually puts semantically similar images close while dissimilar images far from each other in the learned embedding space.…

计算机视觉与模式识别 · 计算机科学 2018-09-03 Wonsik Kim , Bhavya Goyal , Kunal Chawla , Jungmin Lee , Keunjoo Kwon

This paper presents a novel approach to binary classification using dynamic logistic ensemble models. The proposed method addresses the challenges posed by datasets containing inherent internal clusters that lack explicit feature-based…

机器学习 · 计算机科学 2024-12-02 Mohammad Zubair Khan , David Li

Ensemble classifiers have been investigated by many in the artificial intelligence and machine learning community. Majority voting and weighted majority voting are two commonly used combination schemes in ensemble learning. However,…

机器学习 · 计算机科学 2021-06-17 Shengli Wu , Weimin Ding

This paper investigates novel classifier ensemble techniques for uncertainty calibration applied to various deep neural networks for image classification. We evaluate both accuracy and calibration metrics, focusing on Expected Calibration…

计算机视觉与模式识别 · 计算机科学 2025-01-20 Michael Schulze , Nikolas Ebert , Laurenz Reichardt , Oliver Wasenmüller

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

The concept of ensemble learning offers a promising avenue in learning from data streams under complex environments because it addresses the bias and variance dilemma better than its single model counterpart and features a reconfigurable…

机器学习 · 计算机科学 2019-12-10 Mahardhika Pratama , Witold Pedrycz , Edwin Lughofer

Dimensionality reduction is a topic of recent interest. In this paper, we present the classification constrained dimensionality reduction (CCDR) algorithm to account for label information. The algorithm can account for multiple classes as…

机器学习 · 统计学 2009-09-29 Raviv Raich , Jose A. Costa , Steven B. Damelin , Alfred O. Hero

The joint optimization of the reconstruction and classification error is a hard non convex problem, especially when a non linear mapping is utilized. In order to overcome this obstacle, a novel optimization strategy is proposed, in which a…