Misclassification cost-sensitive ensemble learning: A unifying framework
- URL: http://arxiv.org/abs/2007.07361v1
- Date: Tue, 14 Jul 2020 21:18:33 GMT
- Title: Misclassification cost-sensitive ensemble learning: A unifying framework
- Authors: George Petrides and Wouter Verbeke
- Abstract summary: Our contribution is a unifying framework that provides a comprehensive and insightful overview on cost-sensitive ensemble methods.
Our framework contains natural extensions and generalisations of ideas across methods, be it AdaBoost, Bagging or Random Forest.
- Score: 7.90398448280017
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Over the years, a plethora of cost-sensitive methods have been proposed for
learning on data when different types of misclassification errors incur
different costs. Our contribution is a unifying framework that provides a
comprehensive and insightful overview on cost-sensitive ensemble methods,
pinpointing their differences and similarities via a fine-grained
categorization. Our framework contains natural extensions and generalisations
of ideas across methods, be it AdaBoost, Bagging or Random Forest, and as a
result not only yields all methods known to date but also some not previously
considered.
Related papers
- Learning with Complementary Labels Revisited: The Selected-Completely-at-Random Setting Is More Practical [66.57396042747706]
Complementary-label learning is a weakly supervised learning problem.
We propose a consistent approach that does not rely on the uniform distribution assumption.
We find that complementary-label learning can be expressed as a set of negative-unlabeled binary classification problems.
arXiv Detail & Related papers (2023-11-27T02:59:17Z) - A Universal Unbiased Method for Classification from Aggregate
Observations [115.20235020903992]
This paper presents a novel universal method of CFAO, which holds an unbiased estimator of the classification risk for arbitrary losses.
Our proposed method not only guarantees the risk consistency due to the unbiased risk estimator but also can be compatible with arbitrary losses.
arXiv Detail & Related papers (2023-06-20T07:22:01Z) - Better Understanding Differences in Attribution Methods via Systematic Evaluations [57.35035463793008]
Post-hoc attribution methods have been proposed to identify image regions most influential to the models' decisions.
We propose three novel evaluation schemes to more reliably measure the faithfulness of those methods.
We use these evaluation schemes to study strengths and shortcomings of some widely used attribution methods over a wide range of models.
arXiv Detail & Related papers (2023-03-21T14:24:58Z) - Cost-Sensitive Stacking: an Empirical Evaluation [3.867363075280544]
Cost-sensitive learning adapts classification algorithms to account for differences in misclassification costs.
There is no consensus in the literature as to what cost-sensitive stacking is.
Our experiments, conducted on twelve datasets, show that for best performance, both levels of stacking require cost-sensitive classification decision.
arXiv Detail & Related papers (2023-01-04T18:28:07Z) - A Similarity-based Framework for Classification Task [21.182406977328267]
Similarity-based method gives rise to a new class of methods for multi-label learning and also achieves promising performance.
We unite similarity-based learning and generalized linear models to achieve the best of both worlds.
arXiv Detail & Related papers (2022-03-05T06:39:50Z) - Resolving label uncertainty with implicit posterior models [71.62113762278963]
We propose a method for jointly inferring labels across a collection of data samples.
By implicitly assuming the existence of a generative model for which a differentiable predictor is the posterior, we derive a training objective that allows learning under weak beliefs.
arXiv Detail & Related papers (2022-02-28T18:09:44Z) - Leveraging Ensembles and Self-Supervised Learning for Fully-Unsupervised
Person Re-Identification and Text Authorship Attribution [77.85461690214551]
Learning from fully-unlabeled data is challenging in Multimedia Forensics problems, such as Person Re-Identification and Text Authorship Attribution.
Recent self-supervised learning methods have shown to be effective when dealing with fully-unlabeled data in cases where the underlying classes have significant semantic differences.
We propose a strategy to tackle Person Re-Identification and Text Authorship Attribution by enabling learning from unlabeled data even when samples from different classes are not prominently diverse.
arXiv Detail & Related papers (2022-02-07T13:08:11Z) - A survey of Monte Carlo methods for noisy and costly densities with
application to reinforcement learning [0.0]
This type of problem can be found in numerous real-world scenarios, including optimization and reinforcement learning.
We classify the different methodologies into three main classes and describe specific instances of algorithms under a unified notation.
A range of application scenarios is discussed, with special attention to the likelihood-free setting and reinforcement learning.
arXiv Detail & Related papers (2021-08-01T16:47:15Z) - Multi-Class Classification from Single-Class Data with Confidences [90.48669386745361]
We propose an empirical risk minimization framework that is loss-/model-/optimizer-independent.
We show that our method can be Bayes-consistent with a simple modification even if the provided confidences are highly noisy.
arXiv Detail & Related papers (2021-06-16T15:38:13Z) - Deep Learning based Frameworks for Handling Imbalance in DGA, Email, and
URL Data Analysis [2.2901908285413413]
In this paper, we propose cost-sensitive deep learning based frameworks and the performance of the frameworks is evaluated.
Various experiments were performed using cost-insensitive as well as cost-sensitive methods.
In all experiments, the cost-sensitive deep learning methods performed better than the cost-insensitive approaches.
arXiv Detail & Related papers (2020-03-31T00:22:25Z) - Angle-Based Cost-Sensitive Multicategory Classification [34.174072286426885]
We propose a novel angle-based cost-sensitive classification framework for multicategory classification without the sum-to-zero constraint.
To show the usefulness of the framework, two cost-sensitive multicategory boosting algorithms are derived as concrete instances.
arXiv Detail & Related papers (2020-03-08T00:42:15Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.