false alarm

音标发音

A Psych Ward orderly walks out and tells the inmates that it was a false alarm and guides them in back inside.
一个精神病区的勤务员走出来告诉囚犯们，只是一场虚惊-假警报，然后引导着囚犯们返回牢房区。
To counter the risk of a false alarm, the regulator would reserve the right to declare a bank solvent after an audit.
为了减弱虚假警报的危险，监管者会保留在审计后宣布银行有清偿能力的权力。
This modification had a significant effect on the false alarm rate.
此修改对假警报率有很大的影响。

That turned out to be a false alarm, and not entirely because of Japanese missteps.
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That long-ago safety scare, prompted by hundreds of lawsuits claiming birth defects, proved to be a false alarm.
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In a split second she sparked what was likely an expensive false alarm.
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an occasion when people wrongly believe that something dangerous or unpleasant is happening or will happen

When you think something dangerous is about to happen, but then discover that you were mistaken, you can say that it was a false alarm.

虚警
A lot of experiments have shown the good robustness and low false alarm rate.
实验证明该算法具有较强的鲁棒性和较低的虚警率。
误警
Simulation results show the mechanism can detect the DNS attack, it makes good compromise between the detection rate and the false alarm rate.
仿真结果表明，该机制能够有效检测DNS缓存攻击，并实现检测准确率和误警率间的平衡。
虚假警报
However,the problems of false alarm come out,large amounts of IDSes’alarms, which including large volumes of false alarms, make the manager be at loose ends , the practicability of IDSes suffers suspicion.
然而随之而来的是海量的警报信息,数目众多的虚假警报,令管理人员无所适从,入侵检测的实用性也因此受到质疑。
假警报

虚警
The key of reducing false alarm is selecting the sensitive characteristic parameter, detecting early symptom of fault in time, establishing reasonable alarm criterion, alarming at drawing near dangerous accident.
减少事故虚警、漏报的关键在于选取灵敏的特征参数，及时发现故障的早期征兆，建立合理的报警判据，在临近危险事故时报警。
错误报警