We analyze the effect of lossy compression in the processing of sensor signals that must be used to detect anomalous events in the system under observation. The intuitive relationship between the quality loss at higher compression and the possibility of telling anomalous behaviours from normal ones is formalized in terms of information-theoretic quantities. Some analytic derivations are made within the Gaussian framework and possibly in the asymptotic regime for what concerns the stretch of signals considered. Analytical conclusions are matched with the performance of practical detectors in a toy case allowing the assessment of different compression/detector configurations.

翻译：我们分析了传感器信号处理过程中损失压缩的影响,这些信号必须用来探测所观察的系统中的异常事件。高压缩的质量损失与从正常状态中告知异常行为的可能性之间的直觉关系在信息理论数量上已经正式确定。在高山框架内,可能的话在与所考虑信号范围有关的无药可救制度内,可以作出一些分析性推断。分析结论与在玩具情况下实际探测器的性能相匹配,从而可以对不同的压缩/探测器配置进行评估。