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Reliable GNSS positioning in complex environments remains a critical challenge due to non-line-of-sight (NLOS) propagation, multipath effects, and frequent signal blockages. These effects can easily introduce large outliers into the raw…

机器人学 · 计算机科学 2025-10-02 Baoshan Song , Penggao Yan , Xiao Xia , Yihan Zhong , Weisong Wen , Li-Ta Hsu

With the widespread adoption of the Internet of Things (IoT) and Industrial IoT (IIoT) technologies, network architectures have become increasingly complex, and the volume of traffic has grown substantially. This evolution poses significant…

密码学与安全 · 计算机科学 2025-05-01 Qiuyan Xiang , Shuang Wu , Dongze Wu , Yuxin Liu , Zhenkai Qin

Outlier detection can serve as an extremely important tool for researchers from a wide range of fields. From the sectors of banking and marketing to the social sciences and healthcare sectors, outlier detection techniques are very useful…

统计方法学 · 统计学 2023-12-12 Efthymios Costa , Ioanna Papatsouma

Uncertainty quantification (UQ) to detect samples with large expected errors (outliers) is applied to reactive molecular potential energy surfaces (PESs). Three methods - Ensembles, Deep Evidential Regression (DER), and Gaussian Mixture…

化学物理 · 物理学 2024-02-28 Luis Itza Vazquez-Salazar , Silvan Käser , Markus Meuwly

We propose a new outlier detection method for multi-dimensional data. The method detects outliers based on vector cosine similarity, using a new dataset constructed by adding a dimension with zero values to the original data. When a point…

机器学习 · 计算机科学 2026-01-06 Zhongyang Shen

Outlier recognition is a fundamental problem in data analysis and has attracted a great deal of attention in the past decades. However, most existing methods still suffer from several issues such as high time and space complexities or…

计算几何 · 计算机科学 2019-04-09 Hu Ding , Mingquan Ye

The trimming scheme with a prefixed cutoff portion is known as a method of improving the robustness of statistical models such as multivariate Gaussian mixture models (MG- MMs) in small scale tests by alleviating the impacts of outliers.…

计算与语言 · 计算机科学 2014-05-20 Dalei Wu , Haiqing Wu

In traffic management, it is a very important issue to shorten the response time by detecting the incidents (accident, vehicle breakdown, an object falling on the road, etc.) and informing the corresponding personnel. In this study, an…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Murat Tulgaç , Enes Yüncü , Mohamad-Alhaddad , Ceylan Yozgatlıgil

Do expert-defined or diagnostically-labeled data groups align with clusters inferred through statistical modeling? If not, where do discrepancies between predefined labels and model-based groupings occur and why? In this work, we introduce…

统计方法学 · 统计学 2026-03-18 Patricia Puchhammer , Ines Wilms , Peter Filzmoser

Deep networks often make confident, yet, incorrect, predictions when tested with outlier data that is far removed from their training distributions. Likelihoods computed by deep generative models (DGMs) are a candidate metric for outlier…

机器学习 · 计算机科学 2022-07-20 Kushal Chauhan , Barath Mohan U , Pradeep Shenoy , Manish Gupta , Devarajan Sridharan

Clustering and outlier detection are two important tasks in data mining. Outliers frequently interfere with clustering algorithms to determine the similarity between objects, resulting in unreliable clustering results. Currently, only a few…

机器学习 · 计算机科学 2024-12-10 Qi Li , Shuliang Wang

Time series analysis has achieved great success in cyber security such as intrusion detection and device identification. Learning similarities among multiple time series is a crucial problem since it serves as the foundation for downstream…

机器学习 · 计算机科学 2025-06-23 Shaoyu Dou , Kai Yang , Yang Jiao , Chengbo Qiu , Kui Ren

Mapping origin-destination (OD) network traffic is pivotal for network management and proactive security tasks. However, lack of sufficient flow-level measurements as well as potential anomalies pose major challenges towards this goal.…

网络与互联网体系结构 · 计算机科学 2014-07-08 Morteza Mardani , Georgios B. Giannakis

Community detection tasks have received a lot of attention across statistics, machine learning, and information theory with a large body of work concentrating on theoretical guarantees for the stochastic block model. One line of recent work…

统计方法学 · 统计学 2019-11-06 Heather Mathews , Vaishakhi Mayya , Alexander Volfovsky , Galen Reeves

Machine learning systems operate under the assumption that training and test data are sampled from a fixed probability distribution. However, this assumptions is rarely verified in practice, as the conditions upon which data was acquired…

机器学习 · 计算机科学 2025-07-09 Eduardo Fernandes Montesuma , Fred Maurice Ngolè Mboula , Antoine Souloumiac

This paper presents a framework for classifying and detecting spatial commission outliers in maritime environments using seabed acoustic sensor networks and log Gaussian Cox processes (LGCPs). By modeling target arrivals as a mixture of…

机器学习 · 计算机科学 2025-08-19 Mingyu Kim , Daniel Stilwell , Jorge Jimenez

Graphical user interface (GUI) agents have recently emerged as an intriguing paradigm for human-computer interaction, capable of automatically executing user instructions to operate intelligent terminal devices. However, when encountering…

机器学习 · 计算机科学 2025-11-25 Zheng Wu , Pengzhou Cheng , Zongru Wu , Lingzhong Dong , Zhuosheng Zhang

Outlier detection of semiconductor devices is important since manufacturing variation is inherently inevitable. In order to properly detect outliers, it is necessary to consider the discrepancy from underlying trend. Conventional methods…

系统与控制 · 电气工程与系统科学 2022-01-26 Kyohei Shimozato , Michihiro Shintani , Takashi Sato

The Adaptive Smoothing Method (ASM) is a data-driven approach for traffic state estimation. It interpolates unobserved traffic quantities by smoothing measurements along spatio-temporal directions defined by characteristic traffic wave…

最优化与控制 · 数学 2022-12-14 Chuhan Yang , Bilal Thonnam Thodi , Saif Eddin Jabari

An outlier is an observation or a data point that is far from rest of the data points in a given dataset or we can be said that an outlier is away from the center of mass of observations. Presence of outliers can skew statistical measures…

机器学习 · 计算机科学 2021-06-17 Amulya Agarwal , Nitin Gupta