An Intrusion Detection System (IDS) is a software or hardware tool used to detect unauthorized access of a computer system or network. A wireless IDS performs this task exclusively for the wireless network. These systems monitor traffic on your network looking for and logging threats and alerting personnel to respond. An IDS usually performs this task in two ways, with either signature-based or...

Abstract In this paper, we propose a 2D-Weibull-Constant False Alarm Rate (2D-Weibull-CFAR) detection algorithm to solve the problem that detecting current underwater targets is difficult due influence of reverberation noise. Specifically, referring idea CFAR uses probability distribution reference units detect objects, paper introduces pixel noise into detector. After that, extracted estimated...

BACKGROUND The number of devices with alarms has multiplied in recent years, causing alarm fatigue in bedside clinicians. Alarm fatigue is now recognized as a critical safety issue. OBJECTIVE To determine if attitudes and practices related to clinical alarms have changed since 2005. METHODS The Healthcare Technology Foundation's Clinical Alarms Committee developed an online survey for hospi...

This paper outlines a novel approach to wavelet based detection of epileptiform activity in the EEG. A special complex-valued wavelet filter is used in a continuous wavelet transform (CWT). The response of wavelet coefficients (WCs) to epileptiform discharges (EDs) is measured with respect to artifact-free background activity (BG). A detector based on the WCs of a single scale could operate at ...

Ambient noise can mask acoustic cues, making their detection and discrimination difficult for receivers. This can result in two types of error: missed detections, when receivers fail to respond to the appropriate cues, and false alarms, when they respond to inappropriate cues. Nestling birds are error-prone, sometimes failing to beg when parents arrive with food (committing missed detections) o...

This study investigates the influence of false and missing alarms of safety system on drivers' risk-taking behavior by laboratory experiments. The task is to move a vehicle from below to top through an intersection displayed on a PC monitor without colliding with crossing traffic. Participants performed the task under different experimental conditions with different types of system failure: (1)...

close, and ii no classiier consistently outperformed the others over the four learning tasks. The inadequacy of simple accuracies for this problem can be explained by the fact that our data sets are imbalancedd11. In terms of number of false alarms, values obtained from our approach performed very well. In two cases 30 and 15 days, they have lead to the minimum number of false alarms. In the ot...

This notebook paper presents the participation of Telefonica Research in the task of Video Copy Detection in TRECVID 2010. This is our second participation and, for this year, we have developed two local-based monomodal systems that we then combine using a score-based fusion to obtain a multimodal system output. We submitted 4 runs in total, whose main characteristics are described below: • TID...

This paper presents techniques to reduce false alarms in forest-fire detection systems based on infrared cameras. Several software components to implement these techniques are discussed. The components are based on thresholds, oscillation detection, matching of visual and infrared images, memory, meteorological information, motion, size, shape, solar conditions and location. The paper includes ...