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Model explanations such as saliency maps can improve user trust in AI by highlighting important features for a prediction. However, these become distorted and misleading when explaining predictions of images that are subject to systematic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Wencan Zhang , Mariella Dimiccoli , Brian Y. Lim

Self-supervised representation learning on image-text data facilitates crucial medical applications, such as image classification, visual grounding, and cross-modal retrieval. One common approach involves contrasting semantically similar…

Machine Learning · Computer Science 2023-08-15 Peiqi Wang , Yingcheng Liu , Ching-Yun Ko , William M. Wells , Seth Berkowitz , Steven Horng , Polina Golland

Improving the classification of multi-class imbalanced data is more difficult than its two-class counterpart. In this paper, we use deep neural networks to train new representations of tabular multi-class data. Unlike the typically…

Machine Learning · Computer Science 2023-12-19 Damian Horna , Lango Mateusz , Jerzy Stefanowski

This study proposes a method for imbalanced data classification based on deep probabilistic graphical models (DPGMs) to solve the problem that traditional methods have insufficient learning ability for minority class samples. To address the…

Machine Learning · Computer Science 2025-04-09 Yujia Lou , Jie Liu , Yuan Sheng , Jiawei Wang , Yiwei Zhang , Yaokun Ren

In the era of large-scale model training, the extensive use of available datasets has resulted in significant computational inefficiencies. To tackle this issue, we explore methods for identifying informative subsets of training data that…

Machine Learning · Computer Science 2025-04-21 Jinghan Yang , Anupam Pani , Yunchao Zhang

Imbalanced data classification problem has always been a popular topic in the field of machine learning research. In order to balance the samples between majority and minority class. Oversampling algorithm is used to synthesize new minority…

Machine Learning · Computer Science 2019-09-02 Junyi Zou , Jinliang Zhang , Ping Jiang

Regions of high-dimensional input spaces that are underrepresented in training datasets reduce machine-learnt classifier performance, and may lead to corner cases and unwanted bias for classifiers used in decision making systems. When these…

Machine Learning · Computer Science 2021-07-08 Colin Paterson , Radu Calinescu , Chiara Picardi

Supervised learning from training data with imbalanced class sizes, a commonly encountered scenario in real applications such as anomaly/fraud detection, has long been considered a significant challenge in machine learning. Motivated by…

Machine Learning · Computer Science 2019-05-27 Yunru Liu , Tingran Gao , Haizhao Yang

When a subgroup is identified from the data, it must be evaluated in a replicable way. The usual in-sample approach, which evaluates the post-hoc identified subgroup as predefined, might suffer from selection bias. This issue of in-sample…

Methodology · Statistics 2026-05-06 Shuoxun Xu , Xinzhou Guo

Numerous studies attempt to mitigate classification bias caused by class imbalance. However, existing studies have yet to explore the collaborative optimization of imbalanced learning and model training. This constraint hinders further…

Machine Learning · Computer Science 2025-12-30 Chuantao Li , Zhi Li , Jiahao Xu , Jie Li , Sheng Li

Most data for evaluating and training recommender systems is subject to selection biases, either through self-selection by the users or through the actions of the recommendation system itself. In this paper, we provide a principled approach…

Machine Learning · Computer Science 2016-05-30 Tobias Schnabel , Adith Swaminathan , Ashudeep Singh , Navin Chandak , Thorsten Joachims

Learning with limited data is one of the biggest problems of machine learning. Current approaches to this issue consist in learning general representations from huge amounts of data before fine-tuning the model on a small dataset of…

Machine Learning · Computer Science 2023-02-22 Grégoire Mialon

Supervised machine learning based state-of-the-art computer vision techniques are in general data hungry. Their data curation poses the challenges of expensive human labeling, inadequate computing resources and larger experiment turn around…

Computer Vision and Pattern Recognition · Computer Science 2019-01-07 Vishal Kaushal , Rishabh Iyer , Suraj Kothawade , Rohan Mahadev , Khoshrav Doctor , Ganesh Ramakrishnan

Fairness in machine learning seeks to mitigate model bias against individuals based on sensitive features such as sex or age, often caused by an uneven representation of the population in the training data due to selection bias. Notably,…

Machine Learning · Computer Science 2024-10-10 Yasin I. Tepeli , Joana P. Gonçalves

For better classification generative models are used to initialize the model and model features before training a classifier. Typically it is needed to solve separate unsupervised and supervised learning problems. Generative restricted…

Machine Learning · Statistics 2019-08-13 Jaehoon Koo , Diego Klabjan

Deep learning techniques, such as Deep Boltzmann Machines (DBMs), have received considerable attention over the past years due to the outstanding results concerning a variable range of domains. One of the main shortcomings of these…

Machine Learning · Computer Science 2021-01-15 Leandro Aparecido Passos , João Paulo Papa

In most real-world recommender systems, the observed rating data are subject to selection bias, and the data are thus missing-not-at-random. Developing a method to facilitate the learning of a recommender with biased feedback is one of the…

Social and Information Networks · Computer Science 2022-06-16 Yuta Saito

Deep neural networks are powerful tools to detect hidden patterns in data and leverage them to make predictions, but they are not designed to understand uncertainty and estimate reliable probabilities. In particular, they tend to be…

Machine Learning · Statistics 2022-11-10 Bat-Sheva Einbinder , Yaniv Romano , Matteo Sesia , Yanfei Zhou

Deep Neural Networks (DNNs) have been shown to be susceptible to memorization or overfitting in the presence of noisily-labelled data. For the problem of robust learning under such noisy data, several algorithms have been proposed. A…

Machine Learning · Computer Science 2022-12-06 Deep Patel , P. S. Sastry

The remarkable success of modern machine learning models on large datasets often demands extensive training time and resource consumption. To save cost, a prevalent research line, known as online batch selection, explores selecting…

Machine Learning · Computer Science 2024-06-10 Feng Hong , Yueming Lyu , Jiangchao Yao , Ya Zhang , Ivor W. Tsang , Yanfeng Wang