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We develop a mixture-based approach to robust density modeling and outlier detection for experimental multivariate data that includes measurement error information. Our model is designed to infer atypical measurements that are not due to…

天体物理学 · 物理学 2007-09-07 Jianyong Sun , Ata Kaban , Somak Raychaudhury

Local feature matching is a critical component of many computer vision pipelines, including among others Structure-from-Motion, SLAM, and Visual Localization. However, due to limitations in the descriptors, raw matches are often…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Luca Cavalli , Viktor Larsson , Martin Ralf Oswald , Torsten Sattler , Marc Pollefeys

In this article, we introduce a new variable selection technique through trimming for finite mixture of regression models. Compared to the traditional variable selection techniques, the new method is robust and not sensitive to outliers.…

统计方法学 · 统计学 2019-05-06 Sijia Xiang , Weixin Yao

To increase the sample size of future atmospheric characterization efforts, we build on the planetary infrared excess (PIE) technique that has been proposed as a means to detect and characterize the thermal spectra of transiting and…

地球与行星天体物理 · 物理学 2021-11-03 Jacob Lustig-Yaeger , Kevin B. Stevenson , L. C. Mayorga , Kristin S. Sotzen , Erin M. May , Noam R. Izenberg , Kathleen Mandt

The traditional homography estimation pipeline consists of four main steps: feature detection, feature matching, outlier removal and transformation estimation. Recent deep learning models intend to address the homography estimation problem…

计算机视觉与模式识别 · 计算机科学 2022-08-31 Yi Li , Wenjie Pei , Zhenyu He

Identifying salient points in images is a crucial component for visual odometry, Structure-from-Motion or SLAM algorithms. Recently, several learned keypoint methods have demonstrated compelling performance on challenging benchmarks.…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Jiexiong Tang , Hanme Kim , Vitor Guizilini , Sudeep Pillai , Rares Ambrus

Parameter estimation of mixture regression model using the expectation maximization (EM) algorithm is highly sensitive to outliers. Here we propose a fast and efficient robust mixture regression algorithm, called Component-wise Adaptive…

统计方法学 · 统计学 2021-04-20 Wennan Chang , Xinyu Zhou , Yong Zang , Chi Zhang , Sha Cao

Existing time-resolved non-line-of-sight (NLOS) imaging methods reconstruct hidden scenes by inverting the optical paths of indirect illumination measured at visible relay surfaces. These methods are prone to reconstruction artifacts due to…

计算机视觉与模式识别 · 计算机科学 2023-09-27 Kiseok Choi , Inchul Kim , Dongyoung Choi , Julio Marco , Diego Gutierrez , Min H. Kim

Outlier detection is an integral part of robust evaluation for crowdsourceable Quality of Experience (QoE) and has attracted much attention in recent years. In QoE for multimedia, outliers happen because of different test conditions, human…

多媒体 · 计算机科学 2014-10-23 Qianqian Xu , Ming Yan , Yuan Yao

The combination of the Internet of Things and the Edge Computing gives many opportunities to support innovative applications close to end users. Numerous devices present in both infrastructures can collect data upon which various processing…

分布式、并行与集群计算 · 计算机科学 2021-03-02 Kostas Kolomvatsos , Christos Anagnostopoulos

One of many ways for the James-Webb Space Telescope (JWST) to capture astronomical signals is the Mid-Infrared Instrument (MIRI) Imaging mode. To make this data ready for analysis, the JWST standard reduction pipeline has three stages and…

天体物理仪器与方法 · 物理学 2024-01-30 Güray Hatipoğlu

High-contrast imaging for the detection and characterization of exoplanets relies on the instrument's capability to block out the light of the host star. Some current post-processing methods for calibrating out the residual speckles use…

天体物理仪器与方法 · 物理学 2015-06-15 Marie Ygouf , Laurent M. Mugnier , David Mouillet , Thierry Fusco , Jean-Luc Beuzit

Outlier detection is an essential capability in safety-critical applications of supervised visual recognition. Most of the existing methods deliver best results by encouraging standard closed-set models to produce low-confidence predictions…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Anja Delić , Matej Grcić , Siniša Šegvić

Outlier, or anomaly, detection is essential for optimal performance of machine learning methods and statistical predictive models. It is not just a technical step in a data cleaning process but a key topic in many fields such as fraudulent…

机器学习 · 计算机科学 2020-02-19 O. Ramos Terrades , A. Berenguel , D. Gil

We present a method for optimising experimental cuts in order to place the strongest constraints (upper limits) on theoretical signal models. The method relies only on signal and background expectations derived from Monte-Carlo simulations,…

天体物理学 · 物理学 2009-11-07 Gary C. Hill , Katherine Rawlins

Motivation: A major challenge in metabolomics is annotation: assigning molecular structures to mass spectral fragmentation patterns. Despite recent advances in molecule-to-spectra and in spectra-to-molecular fingerprint prediction (FP),…

定量方法 · 定量生物学 2025-06-10 Apurva Kalia , Yan Zhou Chen , Dilip Krishnan , Soha Hassoun

This paper studies the detection of anomalous crop development at the parcel-level based on an unsupervised outlier detection technique. The experimental validation is conducted on rapeseed and wheat parcels located in Beauce (France). The…

图像与视频处理 · 电气工程与系统科学 2021-03-08 Florian Mouret , Mohanad Albughdadi , Sylvie Duthoit , Denis Kouamé , Guillaume Rieu , Jean-Yves Tourneret

Yield monitor datasets are known to contain a high percentage of unreliable records. The current tool set is mostly limited to observation cleaning procedures based on heuristic or empirically-motivated statistical rules for extreme value…

统计方法学 · 统计学 2022-09-26 Luis Damiano , Jarad Niemi

To achieve its ambitious scientific goals, the Near-Infrared Spectrograph, NIRSpec, on board the Webb Space Telescope, needs to meet very demanding throughput requirements, here quantified in terms of photon-conversion efficiency (PCE).…

In this paper we introduce a new method for detecting outliers in a set of proportions. It is based on the construction of a suitable two-way contingency table and on the application of an algorithm for the detection of outlying cells in…

统计方法学 · 统计学 2016-08-04 Flavio Mignone , Fabio Rapallo