中文
相关论文

相关论文: Oversampling Highly Imbalanced Indoor Positioning …

200 篇论文

Class imbalance remains a significant challenge in machine learning, particularly for tabular data classification tasks. While Gradient Boosting Decision Trees (GBDT) models have proven highly effective for such tasks, their performance can…

机器学习 · 计算机科学 2024-07-22 Jiaqi Luo , Yuan Yuan , Shixin Xu

Data for face analysis often exhibit highly-skewed class distribution, i.e., most data belong to a few majority classes, while the minority classes only contain a scarce amount of instances. To mitigate this issue, contemporary deep…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Chen Huang , Yining Li , Chen Change Loy , Xiaoou Tang

This study investigates rare event detection on tabular data within binary classification. Standard techniques to handle class imbalance include SMOTE, which generates synthetic samples from the minority class. However, SMOTE is…

机器学习 · 计算机科学 2025-04-01 Abdoulaye Sakho , Emmanuel Malherbe , Carl-Erik Gauthier , Erwan Scornet

Indoor Positioning based on Machine Learning has drawn increasing attention both in the academy and the industry as meaningful information from the reference data can be extracted. Many researchers are using supervised, semi-supervised, and…

信号处理 · 电气工程与系统科学 2022-11-29 Darwin Quezada-Gaibor , Joaquín Torres-Sospedra , Jari Nurmi , Yevgeni Koucheryavy , Joaquín Huerta

Multi-source fusion positioning is one of the technical frameworks for obtaining sufficient indoor positioning accuracy. In order to evaluate the effect of multi-source fusion positioning, it is necessary to establish a fusion error model.…

信号处理 · 电气工程与系统科学 2022-01-19 Haojun Ai , Kaifeng Tang , Sheng Zhang , Yuhong Yang

The development of highly accurate deep learning methods for indoor localization is often hindered by the unavailability of sufficient data measurements in the desired environment to perform model training. To overcome the challenge of…

信号处理 · 电气工程与系统科学 2021-08-06 Mohamed I. AlHajri , Raed M. Shubair , Marwa Chafii

The accurate automated classification of variable stars into their respective sub-types is difficult. Machine learning based solutions often fall foul of the imbalanced learning problem, which causes poor generalisation performance in…

天体物理仪器与方法 · 物理学 2020-03-18 Zafiirah Hosenie , Robert Lyon , Benjamin Stappers , Arrykrishna Mootoovaloo , Vanessa McBride

Recognizing user location with WiFi fingerprints is a popular approach for accurate indoor positioning problems. In this work, our goal is to interpret WiFi fingerprints into actual user locations. However, WiFi fingerprint data can be very…

机器学习 · 计算机科学 2021-01-27 Weizhu Qian , Franck Gechter

With recent progress in deep generative models, the problem of identifying synthetic data and comparing their underlying generative processes has become an imperative task for various reasons, including fighting visual misinformation and…

机器学习 · 计算机科学 2022-06-07 Hae Jin Song , Wael AbdAlmageed

The imbalanced classification problem turns out to be one of the important and challenging problems in data mining and machine learning. The performances of traditional classifiers will be severely affected by many data problems, such as…

机器学习 · 计算机科学 2022-01-12 Qi Dai , Jian-wei Liu , Yang Liu

Severe class imbalance is one of the main conditions that make machine learning in cybersecurity difficult. A variety of dataset preprocessing methods have been introduced over the years. These methods modify the training dataset by…

机器学习 · 计算机科学 2023-03-07 Radovan Haluška , Jan Brabec , Tomáš Komárek

Learning from imbalanced data is a challenging task. Standard classification algorithms tend to perform poorly when trained on imbalanced data. Some special strategies need to be adopted, either by modifying the data distribution or by…

机器学习 · 计算机科学 2022-08-26 Asif Newaz , Shahriar Hassan , Farhan Shahriyar Haq

Deep Learning models have transformed various domains, including the healthcare sector, particularly biomedical image classification by learning intricate features and enabling accurate diagnostics pertaining to complex diseases. Recent…

计算机视觉与模式识别 · 计算机科学 2025-09-29 Imran Ashraf , Mukhtar Ullah , Muhammad Faisal Nadeem , Muhammad Nouman Noor

Indoor position technology has become one of the research highlights in the Internet of Things (IoT), but there is still a lack of universal, low-cost, and high-precision solutions. This paper conducts research on indoor position technology…

网络与互联网体系结构 · 计算机科学 2026-02-03 Chunyi Zhang , Zongwei Li , Xiaoqi Li

As part of autonomous car driving systems, semantic segmentation is an essential component to obtain a full understanding of the car's environment. One difficulty, that occurs while training neural networks for this purpose, is class…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Robin Chan , Matthias Rottmann , Fabian Hüger , Peter Schlicht , Hanno Gottschalk

Deep learning-based fingerprinting is one of the current promising technologies for outdoor localization in cellular networks. However, deploying such localization systems for heterogeneous phones affects their accuracy as the cellular…

计算机与社会 · 计算机科学 2024-07-25 Ahmed Shokry , Moustafa Youssef

Device-free wireless indoor localization is a key enabling technology for the Internet of Things (IoT). Fingerprint-based indoor localization techniques are a commonly used solution. This paper proposes a semi-supervised, generative…

信号处理 · 电气工程与系统科学 2020-08-18 Kevin M. Chen , Ronald Y. Chang

When applying machine learning to medical image classification, data leakage is a critical issue. Previous methods, such as adding noise to gradients for differential privacy, work well on large datasets like MNIST and CIFAR-100, but fail…

机器学习 · 计算机科学 2025-07-10 Xiaobo Huang , Fang Xie

Downsampling or under-sampling is a technique that is utilized in the context of large and highly imbalanced classification models. We study optimal downsampling for imbalanced classification using generalized linear models (GLMs). We…

机器学习 · 统计学 2025-05-20 Yan Chen , Jose Blanchet , Krzysztof Dembczynski , Laura Fee Nern , Aaron Flores

Predictive models trained on imbalanced data tend to produce biased results. This problem is exacerbated when there is not just one output label, but a set of them. This is the case for multilabel learning (MLL) algorithms used to classify…