Industrial sensing applications place a premium on costeffectiveness and accuracy. Traditional approaches often use expensive, invasive sensors, because inexpensive sensors suffer from false positive detections. Sensor cost means automation is sparse or avoided when the value of specific sites cannot be justified. In this paper, we show combining different types of sensors can allow low-cost se...

Derivation of statistical traffic data is highly dependent on the balance of detection and false alarm rates. In case false alarms have not been eliminated in the initial detection phase, they are often subsequently tracked, though, resulting in trajectories that do not match the true traffic situation. This finally leads to derivation of erroneous traffic parameters within the individual road ...

The use of pulse oximetry in dental procedures involving sedation and children has been encouraged strongly. Reports have indicated that hemoglobin desaturations are not uncommon when a variety of drugs (including nitrous oxide) and dosages are used. The present study investigated the nature of desaturations in relation to patient activity as a function of a drug combination, single drug dose-r...

In short-term earthquake risk forecasting, the avoidance of false alarms is of utmost importance to preclude the possibility of unnecessary panic among populations in seismic hazard areas. Unusual animal behaviour prior to earthquakes has been reported for millennia but has rarely been scientifically documented. Recently large migrations or unusual behaviour of amphibians have been linked to la...

Anomalies are rare events. For anomaly detection, severe class imbalance is the norm. Although there has been much research into imbalanced classes, there are surprisingly few examples of dealing with severe imbalance. Alternative performance measures have superseded error rate, or accuracy, for algorithm comparison. But whatever their other merits, they tend to obscure the severe imbalance pro...

Cardiopulmonary monitors (CPMs) generate false alarm rates ranging from 85%-99% with few of these alarms actually representing serious clinical events. The overabundance of clinically insignificant alarms in hospitals desensitizes the clinician to true-positive alarms and poses significant safety issues. In this IRB-approved externally funded study, we sought to assess the clinical conditions a...

Eurocontrol has introduced a Tactical Controller Tool (TCT), for use by Tactical Air Traffic Controllers (ATCs) who require trajectory conflict information over the next 5 to 8 minutes to help them detect conflicts in their sector. Simulation trials indicate that the safety benefits of TCT may be limited because of large numbers of False Alarms. There is a need to tune the system to identify th...

OBJECTIVE Two experiments were conducted in which participants navigated a simulated unmanned aerial vehicle (UAV) through a series of mission legs while searching for targets and monitoring system parameters. The goal of the study was to highlight the qualitatively different effects of automation false alarms and misses as they relate to operator compliance and reliance, respectively. BACKGR...

The overwhelming number of alarms generated by rule-based network intrusion detection systems makes the task of network security operators ineffective. Preliminary results on an approach called EXOLAP shows that false positives alarms can be avoided by detecting changes on the stream of alarms using a data cube and median polish procedure. A data cube aggregates alarms by hierarchical time fram...

The problem of false alarms in electronic monitoring systems has grown over the last decade. This growth has been associated with increasing system complexity and advances in the state of the art. Studies have shown that some systems exhibit as many as 40% or more “false pulls,” and associated with the false-alarm problem, a large volume of wasted or ineffective maintenance actions exist. What ...