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We study the problem of parameter estimation for time-series possessing two, widely separated, characteristic time scales. The aim is to understand situations where it is desirable to fit a homogenized singlescale model to such multiscale…

统计理论 · 数学 2009-11-11 G. A. Pavliotis , A. M. Stuart

Despite the recent advances in mass spectrometry (MS), summarizing and analyzing high-throughput mass-spectrometry data remains a challenging task. This is, on the one hand, due to the complexity of the spectral signal which is measured,…

统计方法学 · 统计学 2016-06-30 Alexia Kakourou , Werner Vach , Bart Mertens

The analysis of randomized trials with time-to-event endpoints is nearly always plagued by the problem of censoring. As the censoring mechanism is usually unknown, analyses typically employ the assumption of non-informative censoring. While…

统计方法学 · 统计学 2020-07-17 Kelly Van Lancker , Oliver Dukes , Stijn Vansteelandt

While machine-generated texts (MGTs) offer great convenience, they also pose risks such as disinformation and phishing, highlighting the need for reliable detection. Metric-based methods, which extract statistically distinguishable features…

计算与语言 · 计算机科学 2026-02-10 Chenwang Wu , Yiu-ming Cheung , Shuhai Zhang , Bo Han , Defu Lian

The need to monitor industrial processes, detecting changes in process parameters in order to promptly correct problems that may arise, generates a particular area of interest. This is particularly critical and complex when the measured…

应用统计 · 统计学 2019-05-07 Javier Neira Rueda , Andres Carrion Garcia

The problem of cooperative data censoring in battery-powered multihop sensor networks is analyzed in this paper. We are interested in scenarios where nodes generate messages (which are related to the sensor measurements) that can be graded…

多智能体系统 · 计算机科学 2025-11-18 Jesus Fernandez-Bes , Rocío Arroyo-Valles , Jesús Cid-Sueiro

Underwater acoustic target recognition is a challenging task owing to the intricate underwater environments and limited data availability. Insufficient data can hinder the ability of recognition systems to support complex modeling, thus…

声音 · 计算机科学 2024-05-01 Ji Xu , Yuan Xie , Wenchao Wang

In the realm of unsupervised image outlier detection, assigning outlier scores holds greater significance than its subsequent task: thresholding for predicting labels. This is because determining the optimal threshold on non-separable…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Zhonghang Liu , Panzhong Lu , Guoyang Xie , Zhichao Lu , Wen-Yan Lin

Supervisory signals can help topic models discover low-dimensional data representations that are more interpretable for clinical tasks. We propose a framework for training supervised latent Dirichlet allocation that balances two goals:…

Imperfections in data annotation, known as label noise, are detrimental to the training of machine learning models and have an often-overlooked confounding effect on the assessment of model performance. Nevertheless, employing experts to…

Multitarget tracking (MTT) is a challenging task that aims at estimating the number of targets and their states from measurements of the target states provided by one or multiple sensors. Additional information, such as imperfect estimates…

信号处理 · 电气工程与系统科学 2020-12-02 Domenico Gaglione , Giovanni Soldi , Paolo Braca , Giovanni De Magistris , Florian Meyer , Franz Hlawatsch

Adapting pre-trained deep learning models to new and unknown environments remains a major challenge in underwater acoustic localization. We show that although the performance of pre-trained models suffers from mismatch between the training…

声音 · 计算机科学 2025-10-14 Dariush Kari , Hari Vishnu , Andrew C. Singer

Neural networks trained on distilled data often produce over-confident output and require correction by calibration methods. Existing calibration methods such as temperature scaling and mixup work well for networks trained on original…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Dongyao Zhu , Bowen Lei , Jie Zhang , Yanbo Fang , Ruqi Zhang , Yiqun Xie , Dongkuan Xu

The growing reliance of intelligent systems on data makes the systems vulnerable to data poisoning attacks. Such attacks could compromise machine learning or deep learning models by disrupting the input data. Previous studies on data…

最优化与控制 · 数学 2025-05-19 Xin Wang , Feilong Wang , Yuan Hong , R. Tyrrell Rockafellar , Xuegang , Ban

Multilabel classification is an emergent data mining task with a broad range of real world applications. Learning from imbalanced multilabel data is being deeply studied latterly, and several resampling methods have been proposed in the…

机器学习 · 计算机科学 2018-02-15 Francisco Charte , Antonio J. Rivera , María J. del Jesus , Francisco Herrera

Topic evolution modeling has been researched for a long time and has gained considerable interest. A state-of-the-art method has been recently using word modeling algorithms in combination with community detection mechanisms to achieve…

计算与语言 · 计算机科学 2019-12-17 Patrick Kiss , Elaheh Momeni

The Student-$t$ distribution is widely used in statistical modeling of datasets involving outliers since its longer-than-normal tails provide a robust approach to hand such data. Furthermore, data collected over time may contain censored or…

For systems with uncertain linear models, bounded additive disturbances and state and control constraints, a robust model predictive control algorithm incorporating online model adaptation is proposed. Sets of model parameters are…

最优化与控制 · 数学 2020-07-16 Xiaonan Lu , Mark Cannon , Denis Koksal-Rivet

The coexistence of multiple defect categories as well as the substantial class imbalance problem significantly impair the detection of sewer pipeline defects. To solve this problem, a multi-label pipe defect recognition method is proposed…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Xin Zuo , Yu Sheng , Jifeng Shen , Yongwei Shan

Advances in high-throughput sequencing technologies and bioinformatics approaches over almost the last three decades have substantially increased our ability to explore microorganisms and their functions-including those that have yet to be…