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Outlier detection has gained increasing interest in recent years, due to newly emerging technologies and the huge amount of high-dimensional data that are now available. Outlier detection can help practitioners to identify unwanted noise…

统计理论 · 数学 2021-05-20 Mads Lindskou , Torben Tvedebrink , Poul Svante Eriksen , Niels Morling

Often the challenge associated with tasks like fraud and spam detection is the lack of all likely patterns needed to train suitable supervised learning models. This problem accentuates when the fraudulent patterns are not only scarce, they…

机器学习 · 计算机科学 2019-05-08 Utkarsh Porwal , Smruthi Mukund

Given an input set of $3$D point pairs, the goal of outlier-robust $3$D registration is to compute some rotation and translation that align as many point pairs as possible. This is an important problem in computer vision, for which many…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Tianyu Huang , Liangzu Peng , René Vidal , Yun-Hui Liu

LiDAR-based semantic scene understanding is an important module in the modern autonomous driving perception stack. However, identifying outlier points in a LiDAR point cloud is challenging as LiDAR point clouds lack semantically-rich…

计算机视觉与模式识别 · 计算机科学 2024-12-20 Shaocong Xu , Pengfei Li , Qianpu Sun , Xinyu Liu , Yang Li , Shihui Guo , Zhen Wang , Bo Jiang , Rui Wang , Kehua Sheng , Bo Zhang , Li Jiang , Hao Zhao , Yilun Chen

LiDAR point clouds captured in rain or snow are often corrupted by weather-induced returns, which can degrade perception and safety-critical scene understanding. This paper proposes Intensity- and Distance-Aware Statistical Outlier Removal…

信号处理 · 电气工程与系统科学 2026-02-06 Chenyang Yan , Mats Bengtsson

Motivated by the increasing popularity of transformers in computer vision, in recent times there has been a rapid development of novel architectures. While in-domain performance follows a constant, upward trend, properties like robustness…

计算机视觉与模式识别 · 计算机科学 2023-03-21 Pau de Jorge , Riccardo Volpi , Philip Torr , Gregory Rogez

This paper presents an efficient approach for solving jointly facade registration and semantic segmentation. Progress in facade detection and recognition enable good initialization for the registration of a reference facade to a newly…

计算机视觉与模式识别 · 计算机科学 2019-02-22 Antoine Fond , Marie-Odile Berger , Gilles Simon

In this paper, we present a robust spherical harmonics approach for the classification of point cloud-based objects. Spherical harmonics have been used for classification over the years, with several frameworks existing in the literature.…

计算机视觉与模式识别 · 计算机科学 2020-09-04 Ayman Mukhaimar , Ruwan Tennakoon , Chow Yin Lai , Reza Hoseinnezhad , Alireza Bab-Hadiashar

In this paper we present methods for exemplar based clustering with outlier selection based on the facility location formulation. Given a distance function and the number of outliers to be found, the methods automatically determine the…

机器学习 · 计算机科学 2014-03-07 Lionel Ott , Linsey Pang , Fabio Ramos , David Howe , Sanjay Chawla

This paper considers the problem of recovering signals from compressed measurements contaminated with sparse outliers, which has arisen in many applications. In this paper, we propose a generative model neural network approach for…

信息论 · 计算机科学 2018-10-29 Jirong Yi , Anh Duc Le , Tianming Wang , Xiaodong Wu , Weiyu Xu

Radar sensors are emerging as solutions for perceiving surroundings and estimating ego-motion in extreme weather conditions. Unfortunately, radar measurements are noisy and suffer from mutual interference, which degrades the performance of…

机器人学 · 计算机科学 2023-03-06 Hyungtae Lim , Kawon Han , Gunhee Shin , Giseop Kim , Songcheol Hong , Hyun Myung

Automotive 4D imaging radar is well suited for operation in dusty and low-visibility environments, but scan registration remains challenging due to scan sparsity and spurious detections caused by noise and multipath reflections. This…

机器人学 · 计算机科学 2026-04-17 Georg Dorndorf , Daniel Adolfsson , Masrur Doostdar

In large-scale metric localization, an incorrect result during retrieval will lead to an incorrect pose estimate or loop closure. Re-ranking methods propose to take into account all the top retrieval candidates and re-order them to increase…

计算机视觉与模式识别 · 计算机科学 2023-04-27 Kavisha Vidanapathirana , Peyman Moghadam , Sridha Sridharan , Clinton Fookes

Modeling scene geometry using implicit neural representation has revealed its advantages in accuracy, flexibility, and low memory usage. Previous approaches have demonstrated impressive results using color or depth images but still have…

机器人学 · 计算机科学 2023-03-01 Dongyu Yan , Xiaoyang Lyu , Jieqi Shi , Yi Lin

In this paper, an outlier elimination algorithm for ellipse/ellipsoid fitting is proposed. This two-stage algorithm employs a proximity-based outlier detection algorithm (using the graph Laplacian), followed by a model-based outlier…

统计方法学 · 统计学 2009-10-27 Jieqi Yu , Haipeng Zheng , Sanjeev R. Kulkarni , H. Vincent Poor

Given a real-valued function $f$ defined over a manifold $M$ embedded in $\mathbb{R}^d$, we are interested in recovering structural information about $f$ from the sole information of its values on a finite sample $P$. Existing methods…

计算几何 · 计算机科学 2015-04-08 Mickaël Buchet , Frédéric Chazal , Tamal K. Dey , Fengtao Fan , Steve Y. Oudot , Yusu Wang

The development of 3D Vision-Language Models (VLMs), crucial for applications in robotics, autonomous driving, and augmented reality, is severely constrained by the scarcity of paired 3D-text data. Existing methods rely solely on next-token…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Yuanhao Su , Shaofeng Zhang , Xiaosong Jia , Qi Fan

While 4-bit quantization is essential for high-throughput deployment of Large Language Models, activation outliers often lead to significant accuracy degradation due to the restricted dynamic range of low-bit formats. In this paper, we…

机器学习 · 计算机科学 2026-04-15 Zhiyuan Zhang , Yanzhao Li , Zhiqiang Zou , Bai Du , Yupeng Sun , Hui Dong , Hui Wang

The motivation of this paper is to address the problem of registering airborne LiDAR data and optical aerial or satellite imagery acquired from different platforms, at different times, with different points of view and levels of detail. In…

计算机视觉与模式识别 · 计算机科学 2019-11-28 Thanh Huy Nguyen , Sylvie Daniel , Didier Gueriot , Christophe Sintes , Jean-Marc Le Caillec

Over the decades, traditional outlier detectors have ignored the group-level factor when calculating outlier scores for objects in data by evaluating only the object-level factor, failing to capture the collective outliers. To mitigate this…

机器学习 · 计算机科学 2022-12-22 Jiawei Yang , Yu Chen , Sylwan Rahardja