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首页> 外文期刊>Applied Ergonomics >Automation reliability, human-machine system performance, and operator compliance: A study with airport security screeners supported by automated explosives detection systems for cabin baggage screening
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Automation reliability, human-machine system performance, and operator compliance: A study with airport security screeners supported by automated explosives detection systems for cabin baggage screening

机译：自动化可靠性，人机系统性能和操作员合规性：通过自动化爆炸物检测系统支持机场安全筛选器，用于机舱行李筛查

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Using a simulated X-ray screening task, we tested 122 airport security screeners working with the support of explosives detection systems for cabin baggage screening (EDSCB) as low-level automation. EDSCB varied systematically on three automation reliability measures: accuracy, d', and positive predictive value (PPV). Results showed that when unaided performance was high, operator confidence was high, and automation provided only small benefits. When unaided performance was lower, operator confidence was lower, and automation with higher d' provided large benefits. Operator compliance depended on the PPV of automation: We found lower compliance for lower PPV. Automation with a high false alarm rate of 20% and a low PPV of .3 resulted in operators ignoring about one-half of the true automation alarms on difficult targets-a strong cry-wolf effect. Our results suggest that automation reliability described by d' and PPV is more valid than using accuracy alone. When the PPV is below .5, operators should receive clear instructions on how to respond to automation alarms.
机译：使用模拟的X射线筛选任务，我们测试了122个机场安全筛选者，适用于爆炸物检测系统，用于机舱行李筛查（EDSCB）作为低级自动化。 EDSCB在三种自动化可靠性措施：精度，D'和阳性预测值（PPV）上变化。结果表明，当有型性能很高时，运营商信心很高，自动化只提供了小的福利。当有题说的表现较低时，运营商的信心降低，较高的自动化提供了很大的效益。操作员合规取决于自动化的PPV：我们发现降低PPV的合规性。具有高误报率的自动化为20％，低PPV为.3导致操作员忽略了困难目标的真实自动化警报的一半 - 强烈的哭狼效果。我们的结果表明，D'和PPV所描述的自动化可靠性比单独使用精度更有效。当PPV低于.5时，运营商应收到有关如何响应自动化警报的明确说明。

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