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A novel similarity-covariant feature detector that extracts points whose neighbourhoods, when treated as a 3D intensity surface, have a saddle-like intensity profile. The saddle condition is verified efficiently by intensity comparisons on…

计算机视觉与模式识别 · 计算机科学 2016-08-25 Javier Aldana-Iuit , Dmytro Mishkin , Ondrej Chum , Jiri Matas

We investigate an algorithm named histogram transform ensembles (HTE) density estimator whose effectiveness is supported by both solid theoretical analysis and significant experimental performance. On the theoretical side, by decomposing…

统计理论 · 数学 2019-11-27 Hanyuan Hang

Hybrid Approximate Nearest Neighbor Search (Hybrid ANNS) is a foundational search technology for large-scale heterogeneous data and has gained significant attention in both academia and industry. However, current approaches overlook the…

信息检索 · 计算机科学 2026-04-03 Qianyun Yang , Zhiwei Chen , Yupeng Hu , Zixu Li , Zhiheng Fu , Liqiang Nie

Despite the great performance of deep learning models in many areas, they still make mistakes and underperform on certain subsets of data, i.e. error slices. Given a trained model, it is important to identify its semantically coherent error…

机器学习 · 计算机科学 2025-12-23 Han Yu , Hao Zou , Jiashuo Liu , Renzhe Xu , Yue He , Xingxuan Zhang , Peng Cui

This paper presents DEEGITS (Deep Learning Based Heterogeneous Traffic State Measurement), a comprehensive framework that leverages state-of-the-art convolutional neural network (CNN) techniques to accurately and rapidly detect vehicles and…

计算机视觉与模式识别 · 计算机科学 2024-11-14 Muttahirul Islam , Nazmul Haque , Md. Hadiuzzaman

Supervised machine learning often encounters concept drift, where the data distribution changes over time, degrading model performance. Existing drift detection methods focus on identifying these shifts but often overlook the challenge of…

机器学习 · 计算机科学 2024-11-06 Christofer Fellicious , Lorenz Wendlinger , Mario Gancarski , Jelena Mitrovic , Michael Granitzer

A hypergraph is a generalization of a graph, in which a hyperedge can connect multiple vertices, modeling complex relationships involving multiple vertices simultaneously. Hypergraph pattern matching, which is to find all isomorphic…

数据库 · 计算机科学 2025-12-23 Siwoo Song , Wonseok Shin , Kunsoo Park , Giuseppe F. Italiano , Zhengyi Yang , Wenjie Zhang

We propose a novel approach to anomaly detection called Curvature Anomaly Detection (CAD) and Kernel CAD based on the idea of polyhedron curvature. Using the nearest neighbors for a point, we consider every data point as the vertex of a…

机器学习 · 计算机科学 2020-05-14 Benyamin Ghojogh , Fakhri Karray , Mark Crowley

In recent years, networks with higher-order interactions have emerged as a powerful tool to model complex systems. Comparing these higher-order systems remains however a challenge. Traditional similarity measures designed for pairwise…

物理与社会 · 物理学 2026-02-24 Cosimo Agostinelli , Marco Mancastroppa , Alain Barrat

Accurate classification of breast ultrasound images into benign, malignant, and normal categories is a critical clinical task complicated by speckle noise, acoustic shadowing, and inter-class visual ambiguity. Existing deep learning methods…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Chinedu Emmanuel Mbonu , Blessing Nwamaka Iduh , Joseph Ikechukwu Odo , Doris Chinedu Asogwa

This work introduces FiRE/FiRE.1, a novel sketching-based algorithm for anomaly detection to quickly identify rare cell sub-populations in large-scale single-cell RNA sequencing data. This method demonstrated superior performance against…

机器学习 · 计算机科学 2025-12-04 Aashi Jindal

Presence of haze in images obscures underlying information, which is undesirable in applications requiring accurate environment information. To recover such an image, a dehazing algorithm should localize and recover affected regions while…

计算机视觉与模式识别 · 计算机科学 2021-01-27 Pranjay Shyam , Kuk-Jin Yoon , Kyung-Soo Kim

This paper introduces a new algorithm for unsupervised learning of keypoint detectors and descriptors, which demonstrates fast convergence and good performance across different datasets. The training procedure uses homographic…

计算机视觉与模式识别 · 计算机科学 2020-06-02 Anatoly Belikov , Alexey Potapov

The fastest quantum algorithms (for the solution of classical computational tasks) known so far are basically variations of the hidden subgroup problem with {$f(U[x])=f(x)$}. Following a discussion regarding which tasks might be solved…

量子物理 · 物理学 2007-05-23 R. Schützhold , W. G. Unruh

In this paper we propose a new strategy, based on anomaly detection methods, to search for new physics phenomena at colliders independently of the details of such new events. For this purpose, machine learning techniques are trained using…

高能物理 - 唯象学 · 物理学 2021-11-30 M. Crispim Romao , N. F. Castro , R. Pedro

We measure the clustering of dark matter halos in a large set of collisionless cosmological simulations of the flat LCDM cosmology. Halos are identified using the spherical overdensity algorithm, which finds the mass around isolated peaks…

宇宙学与河外天体物理 · 物理学 2015-05-18 Jeremy L. Tinker , Brant E. Robertson , Andrey V. Kravtsov , Anatoly Klypin , Michael S. Warren , Gustavo Yepes , Stefan Gottlober

Detecting anomalies in large complex systems is a critical and challenging task. The difficulties arise from several aspects. First, collecting ground truth labels or prior knowledge for anomalies is hard in real-world systems, which often…

机器学习 · 计算机科学 2021-06-01 Huiling Qin , Xianyuan Zhan , Yu Zheng

Lane detection is to detect lanes on the road and provide the accurate location and shape of each lane. It severs as one of the key techniques to enable modern assisted and autonomous driving systems. However, several unique properties of…

计算机视觉与模式识别 · 计算机科学 2018-07-06 Ze Wang , Weiqiang Ren , Qiang Qiu

Semantic edge detection (SED), which aims at jointly extracting edges as well as their category information, has far-reaching applications in domains such as semantic segmentation, object proposal generation, and object recognition. SED…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Yun Liu , Ming-Ming Cheng , Deng-Ping Fan , Le Zhang , JiaWang Bian , Dacheng Tao

Spacecraft anomaly detection is critical for mission safety, yet deploying sophisticated models on-board presents significant challenges due to hardware constraints. This paper investigates three approaches for spacecraft telemetry anomaly…

机器学习 · 计算机科学 2026-04-01 Christopher Goetze , Tim Schlippe , Daniel Lakey