نتایج جستجو برای: false alarms rate far

تعداد نتایج: 1193440  

1998
Ichiro Maruyama Yoshiharu Abe Takahiro Wakao Eiji Sawamura Terumasa Ehara Katsuhiko Shirai

This paper describes a method of automatically synchronizing TV news speech and its captions. A news item consists of sentences and often has a corresponding computerized text, which can be used as a caption. We have developed a new phonetically HMM-based word spotter. In this word spotter, word sequences before and after a synchronization point are concatenated and scoring is based on the stat...

Journal: :رادار 0

in synthetic aperture radar (sar) imagery, ship-sea contrast can be significantly improved when the polarimetric information is used, compared with information from a single channel sar. the constant false alarm rate (cfar) detection algorithm based on the alpha-stable (as) distribution model is a descent method for ship detection in sea. the most important step in this method is the parameter ...

Journal: :IEEE Geoscience and Remote Sensing Letters 2022

In this letter, we propose a method to reduce the number of false alarms in wavelength–resolution synthetic aperture radar (SAR) change detection scheme by using convolutional neural network (CNN). The is performed two steps: analysis and object classification. A simple technique for SAR implemented extract potential targets from image interest. CNN then used classifying map detections as eithe...

2003
João B. D. Cabrera Lundy M. Lewis Xinzhou Qin Carlos Gutiérrez Wenke Lee Raman K. Mehra

In our earlier work we have proposed and developed a methodology for the early detection of Distributed Denial of Service (DDoS) attacks. In this paper, we examine the applicability of Proactive Intrusion Detection on a considerably more complex set-up, with hosts associated with three clusters, connected by routers. Background TCP, UDP and ICMP traffic following Interrupted Poisson Processes a...

2004
Stephen R. Dixon Christopher D. Wickens

Twenty-four participants flew a simulated unmanned aerial vehicle (UAV) through ten mission legs while searching for targets of opportunity and monitoring system parameters. Participants were assisted by automation which provided auditory alerts in response to system failures (SF). The auto-alerts were either 80% reliable or 60% reliable; the latter condition resulted in either a 3:1 ratio of f...

2005
Xavier Rival

Static analyzers like Astrée are incomplete, hence, may produce false alarms. We propose a framework for the investigation of the alarms produced by Astrée, so as to help classifying them as true errors or false alarms that are due to the approximation inherent in the static analysis. Our approach is based on the computation of an approximation of a set of traces specified by an initial and a (...

2012
KEVIN E. STONE James Keller Kevin E. Stone Dominic Ho Mihail Popescu

This paper proposes a technique for using infrared (IR) imagery to eliminate false forward-looking ground penetrating radar (FLGPR) detections by examining areas in IR images corresponding to FLGPR alarm locations. The FLGPR and IR co-location is based on the assumption of a flat earth and the pinhole camera model. The parameters of the camera and its location on the vehicle are not assumed to ...

Journal: :Proceedings. Biological sciences 2012
Jennifer A Hamel Reginald B Cocroft

Within animal groups, individuals can learn of a predator's approach by attending to the behaviour of others. This use of social information increases an individual's perceptual range, but can also lead to the propagation of false alarms. Error copying is especially likely in species that signal collectively, because the coordination required for collective displays relies heavily on social inf...

2014
Barbara J. Drew Patricia Harris Jessica K. Zègre-Hemsey Tina Mammone Daniel Schindler Rebeca Salas-Boni Yong Bai Adelita Tinoco Quan Ding Xiao Hu Larisa G. Tereshchenko

PURPOSE Physiologic monitors are plagued with alarms that create a cacophony of sounds and visual alerts causing "alarm fatigue" which creates an unsafe patient environment because a life-threatening event may be missed in this milieu of sensory overload. Using a state-of-the-art technology acquisition infrastructure, all monitor data including 7 ECG leads, all pressure, SpO(2), and respiration...

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