For statistical usage, see False positive. For other uses, see False alarm (disambiguation).
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A false alarm, also called a nuisance alarm, is the deceptive or erroneous report of an emergency, causing unnecessary panic and/or bringing resources (such as emergency services) to a place where they are not needed. False alarms may occur with residential burglary alarms, smoke detectors, industrial alarms, and in signal detection theory. False alarms have the potential to divert emergency responders away from legitimate emergencies, which could ultimately lead to loss of life. In some cases, repeated false alarms in a certain area may cause occupants to develop alarm fatigue and to start ignoring most alarms, knowing that each time it will probably be false. Intentionally falsely activating alarms in businesses and schools can lead to serious disciplinary actions, and criminal penalties such as fines and jail time.
A falsealarm, also called a nuisance alarm, is the deceptive or erroneous report of an emergency, causing unnecessary panic and/or bringing resources...
Constant falsealarm rate (CFAR) detection refers to a common form of adaptive algorithm used in radar systems to detect target returns against a background...
the United States. These missile attack warnings were suspected to be falsealarms by Stanislav Petrov, an engineer of the Soviet Air Defence Forces on...
and 98% of all alarm calls to law enforcement are falsealarms. System reliability and user error are the cause of most falsealarms, sometimes called...
performing multiple comparisons, a false positive ratio (also known as fall-out or falsealarm ratio) is the probability of falsely rejecting the null hypothesis...
Type I error (false positive): The true fact is that the item is not a weapon but the system still sounds an alarm. Type II error (false negative) The...
messages, the accidental activation was officially terminated. This falsealarm demonstrated major flaws in the practical implementation of an EAN. Many...
afterward, Secretary of the Navy Frank Knox called the purported attack a "falsealarm". Newspapers of the time published a number of reports and speculations...
In animal communication, an alarm signal is an antipredator adaptation in the form of signals emitted by social animals in response to danger. Many primates...
wolf, such falsealarms rob the critical alarms of the importance they deserve. Alarm management and policy are critical to prevent alarm fatigue. The...
In statistics, the false discovery rate (FDR) is a method of conceptualizing the rate of type I errors in null hypothesis testing when conducting multiple...
The FalseAlarm is a 1926 American silent drama film directed by Frank O'Connor and starring Ralph Lewis, Dorothy Revier, and John Harron. As described...
A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, carbon monoxide...
announced by HI-EMA and the Honolulu Police Department that the alert was a falsealarm. The incident came amidst heightened concern over the possibility that...
Air Defence Forces who played a key role in the 1983 Soviet nuclear falsealarm incident. On 26 September 1983, three weeks after the Soviet military...
scrambled the B-52 bombers at the base before the duty officer declared a falsealarm. The crisis finally ended when Prime Minister Meir halted all military...
the house, who will then first check for a falsealarm by phoning the person, and if there is no falsealarm, will enter the person's flat to check what...
that Boswell held an opinion contradictory to two of the pamphlets, The FalseAlarm and Taxation No Tyranny, and so he attacked Johnson's views in his biography—including...
costly than a falsealarm (reporting a bomber when there is not one), making a liberal response bias desirable. In contrast, giving falsealarms too often...
"to give a falsealarm" in Brewer's Dictionary of Phrase and Fable and glossed by the Oxford English Dictionary as meaning to make false claims, with...
A fire alarm box, fire alarm call box, or fire alarm pull box is a device used for notifying a fire department of a fire or a fire alarm activation. Typically...
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