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In the most intrusion detection systems (IDS), a system tries to learn characteristics of different type of attacks by analyzing packets that sent or received in network. These packets have a lot of features. But not all of them is required…

密码学与安全 · 计算机科学 2013-05-13 Shafigh Parsazad , Ehsan Saboori , Amin Allahyar

An innovative method based on the traversal of rays, originating from detected particles, through a three-dimensional grid of voxels is presented. The methodology has as main advantage that the outcome of the method is independent of the…

流体动力学 · 物理学 2020-08-07 Mickael Bourgoin , Sander Huisman

Digital radio arrays are widely used for the low-frequency radio astronomy as well as for detection of air-showers induced by high-energy cosmic rays and neutrinos. Since the radio emission from air-showers forms short broadband pulses with…

In recent years, there has been a proliferation of wide-field sky surveys to search for a variety of transient objects. Using relatively short focal lengths, the optics of these systems produce undersampled stellar images often marred by a…

天体物理学 · 物理学 2009-11-13 Fang Yuan , Carl W. Akerlof

Selecting relevant features is an important and necessary step for intelligent machines to maximize their chances of success. However, intelligent machines generally have no enough computing resources when faced with huge volume of data.…

机器学习 · 计算机科学 2025-07-04 Hexiang Bai , Deyu Li , Jiye Liang , Yanhui Zhai

Here we present a general algorithm for processing microcalorimeter data with special applicability to data with high photon count rates. Conventional optimal filtering, which has become ubiquitous in microcalorimeter data processing,…

仪器与探测器 · 物理学 2020-11-09 Dallas Wulf , Felix Jaeckel , Dan McCammon , James A Chervenak , Megan E Eckart

Optical absorption imaging is a basic detection technique for obtaining information from matter waves, in which the absorption signal can be obtained by comparing the recorded detection light field with the light field in the presence of…

量子气体 · 物理学 2019-01-03 Linxiao Niu , Xinxin Guo , Yuan Zhan , Xuzong Chen , W. M. Liu , Xiaoji Zhou

In neutral atom quantum computers, readout and preparation of the atomic qubits are usually based on fluorescence imaging and subsequent analysis of the acquired image. For each atom site, the brightness or some comparable metric is…

量子物理 · 物理学 2024-09-26 Jonas Winklmann , Andrea Alberti , Martin Schulz

Conventional Synthetic Aperture Radar (SAR) systems are limited in their ability to satisfy the increasing requirement for improved spatial resolution and wider coverage. The demand for high resolution requires high sampling rates, while…

信息论 · 计算机科学 2017-11-22 Kfir Aberman , Yonina C. Eldar

The contribution of this paper is two-fold. First, we introduce a generalized myriad filter, which is a method to compute the joint maximum likelihood estimator of the location and the scale parameter of the Cauchy distribution. Estimating…

数值分析 · 数学 2018-04-20 Friederike Laus , Fabien Pierre , Gabriele Steidl

The wealth of smartphone data collected by the Cosmic Ray Extremely Distributed Observatory(CREDO) greatly surpasses the capabilities of manual analysis. So, efficient means of rejectingthe non-cosmic-ray noise and identification of signals…

In the last years the direct measurement of cosmic rays received a push forward by the possibility of conducting experiments on board long duration balloon flights, satellites and on the International Space Station. The increase in the…

高能天体物理现象 · 物理学 2015-06-22 Emiliano Mocchiutti

Photometric surveys have provided incredible amounts of astronomical information in the form of images. However, astronomical images often contain artifacts that can critically hinder scientific analysis by misrepresenting intensities or…

天体物理仪器与方法 · 物理学 2020-06-03 Suchetha Cooray , Tsutomu T. Takeuchi , Moe Yoda , Kazuo Sorai

Our study exploits the Constant Intensity Cut principles applied simultaneously to muonic and electromagnetic detectors of cosmic rays. We use the fact that the ordering of events according to their signal sizes induced in different types…

高能天体物理现象 · 物理学 2017-08-22 Jakub Vicha , Dalibor Nosek , Petr Travnicek , Jan Ebr

A new algorithm is developed to jointly recover a temporal sequence of images from noisy and under-sampled Fourier data. Specifically, we consider the case where each data set is missing vital information that prevents its (individual)…

数值分析 · 数学 2022-05-13 Yao Xiao , Jan Glaubitz , Anne Gelb , Guohui Song

An explicit full nulling scheme for cosmic shear observations is presented. It makes possible the construction of shear maps from extended source distributions for which the lens distance distribution is restricted to a definite interval.…

宇宙学与河外天体物理 · 物理学 2015-06-18 Francis Bernardeau , Takahiro Nishimichi , Atsushi Taruya

Not only source catalogs are extracted from astronomy observations. Their sky coverage is always carefully recorded and used in statistical analyses, such as correlation and luminosity function studies. Here we present a novel method for…

天体物理仪器与方法 · 物理学 2014-03-20 Dongwei Fan , Tamás Budavári , Alexander S. Szalay , Chenzhou Cui , Yongheng Zhao

A scientific instrument comprised of a global network of millions of independent, connected, remote devices presents unique data acquisition challenges. We describe the software design of a mobile application which collects data from…

天体物理仪器与方法 · 物理学 2021-08-11 Jeff Swaney , Chase Shimmin , Daniel Whiteson

Outlier rejection and equivalently inlier set optimization is a key ingredient in numerous applications in computer vision such as filtering point-matches in camera pose estimation or plane and normal estimation in point clouds. Several…

计算机视觉与模式识别 · 计算机科学 2021-07-28 Dror Aiger , Simon Lynen , Jan Hosang , Bernhard Zeisl

This paper implements likelihood-based jump detection for detectors read out up-the-ramp, using the entire set of reads to compute likelihoods. The approach compares the $\chi^2$ value of a fit with and without a jump for every possible…

天体物理仪器与方法 · 物理学 2024-05-17 Timothy D. Brandt