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It is known that the scan statistic with variable window size favors the detection of signals with small spatial extent and there is a corresponding loss of power for signals with large spatial extent. Recent results have shown that this…

统计方法学 · 统计学 2022-05-20 Guenther Walther

The increasing interest in spatially correlated functional data has led to the development of appropriate geostatistical techniques that allow to predict a curve at an unmonitored location using a functional kriging with external drift…

统计方法学 · 统计学 2017-06-23 Maria Franco-Villoria , Rosaria Ignaccolo

As time series data become increasingly prevalent in domains such as manufacturing, IT, and infrastructure monitoring, anomaly detection must adapt to nonstationary environments where statistical properties shift over time. Traditional…

机器学习 · 计算机科学 2025-08-12 Muyan Anna Li , Aditi Gautam

To detect differences between the mean curves of two samples in longitudinal study or functional data analysis, we usually need to partition the temporal or spatial domain into several pre-determined sub-areas. In this paper we apply the…

统计方法学 · 统计学 2015-05-01 Peirong Xu , Youngjo Lee , Jian Qing Shi

Global monitoring statistics play an important role for developing efficient monitoring schemes for high-dimensional data streams. A number of global monitoring statistics have been proposed in the literature. However, most of them only…

统计方法学 · 统计学 2017-12-19 Jun Li

Accurate and efficient environment representation is crucial for robotic applications such as motion planning, manipulation, and navigation. Signed distance functions (SDFs) have emerged as a powerful representation for encoding distance to…

机器人学 · 计算机科学 2026-04-01 Zhirui Dai , Tianxing Fan , Mani Amani , Jaemin Seo , Ki Myung Brian Lee , Hyondong Oh , Nikolay Atanasov

Accounting for phase variability is a critical challenge in functional data analysis. To separate it from amplitude variation, functional data are registered, i.e., their observed domains are deformed elastically so that the resulting…

统计方法学 · 统计学 2021-08-13 Alexander Bauer , Fabian Scheipl , Helmut Küchenhoff , Alice-Agnes Gabriel

Automated Driving Functions (ADFs) need to comply with spatial properties of varied complexity while driving on public roads. Since such situations are safety-critical in nature, it is necessary to continuously check ADFs for compliance…

计算机科学中的逻辑 · 计算机科学 2025-11-19 Ishan Saxena , Bernd Westphal , Martin Fränzle

Fractionally supervised classification (FSC) offers a flexible framework for combining labeled and unlabeled data in model-based classification, but existing formulations assume simple random sampling. In many applications, however, the…

统计方法学 · 统计学 2026-04-29 Mohammad Jafari Jozani , Jingyu Wang

The applications of traditional statistical feature selection methods to high-dimension, low sample-size data often struggle and encounter challenging problems, such as overfitting, curse of dimensionality, computational infeasibility, and…

机器学习 · 统计学 2023-12-19 Kexuan Li , Fangfang Wang , Lingli Yang , Ruiqi Liu

There is an increasing focus on reducing inequalities in health outcomes in developing countries. Subnational variation is of particular interest, with geographic data used to understand the spatial risk of detrimental outcomes and to…

统计方法学 · 统计学 2020-12-22 Neal Marquez , Jon Wakefield

Disaggregation regression has become an important tool in spatial disease mapping for making fine-scale predictions of disease risk from aggregated response data. By including high resolution covariate information and modelling the data…

应用统计 · 统计学 2020-05-08 Rohan Arambepola , Tim C D Lucas , Anita K Nandi , Peter W Gething , Ewan Cameron

Large health surveys increasingly collect high-dimensional functional data from wearable devices, and function on scalar regression (FoSR) is often used to quantify the relationship between these functional outcomes and scalar covariates…

统计方法学 · 统计学 2025-11-10 Lily Koffman , Sunan Gao , Xinkai Zhou , Andrew Leroux , Ciprian Crainiceanu , John Muschelli

In recent years, few-shot segmentation (FSS) models have emerged as a promising approach in medical imaging analysis, offering remarkable adaptability to segment novel classes with limited annotated data. Existing approaches to few-shot…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Mohammad Mozafari , Hosein Hasani , Reza Vahidimajd , Mohamadreza Fereydooni , Mahdieh Soleymani Baghshah

Fr\'echet means are indispensable for nonparametric statistics on non-Euclidean spaces. For suitable random variables, in some sense, they "sense" topological and geometric structure. In particular, smeariness seems to indicate the presence…

统计理论 · 数学 2021-03-02 Do Tran , Benjamin Eltzner , Stephan Huckemann

The partially separable functions (PSF) model is commonly adopted in dynamic MRI reconstruction, as is the underlying signal model in many reconstruction methods including the ones relying on low-rank assumptions. Even though the PSF model…

图像与视频处理 · 电气工程与系统科学 2026-01-21 Rodrigo A. Lobos , Xiaokai Wang , Rex T. L. Fung , Yongli He , David Frey , Dinank Gupta , Zhongming Liu , Jeffrey A. Fessler , Douglas C. Noll

We develop a new method to locally cluster curves and discover functional motifs, i.e.~typical ``shapes'' that may recur several times along and across the curves capturing important local characteristics. In order to identify these shared…

统计方法学 · 统计学 2023-01-30 Marzia A. Cremona , Francesca Chiaromonte

Medical images are often characterized by their structured anatomical representations and spatially inhomogeneous contrasts. Leveraging anatomical priors in neural networks can greatly enhance their utility in resource-constrained clinical…

图像与视频处理 · 电气工程与系统科学 2024-02-07 Xiang Chen , Min Liu , Rongguang Wang , Renjiu Hu , Dongdong Liu , Gaolei Li , Hang Zhang

In large-scale image retrieval, many indexing methods have been proposed to narrow down the searching scope of retrieval. The features extracted from images usually are of high dimensions or unfixed sizes due to the existence of key points.…

计算机视觉与模式识别 · 计算机科学 2021-09-15 Ying Wang , Tingzhen Liu , Zepeng Bu , Yuhui Huang , Lizhong Gao , Qiao Wang

We introduce a multiscale test statistic based on local order statistics and spacings that provides simultaneous confidence statements for the existence and location of local increases and decreases of a density or a failure rate. The…

统计理论 · 数学 2008-08-07 Lutz Duembgen , Günther Walther