A Compositional Framework for Quantitative Online Monitoring over Continuous-Time Signals
A Compositional Framework for Quantitative Online Monitoring over Continuous-Time Signals
复制标题
连续时间信号定量在线监测的组合框架
DOI:
10.1007/978-3-030-88494-9_8
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Wang, Zhifu
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文献类型:
--
作者:
Mamouras, Konstantinos;Chattopadhyay, Agnishom;Wang, Zhifu
We investigate online monitoring algorithms over dense-time and continuous-time signals for properties written in metric temporal logic (MTL). We consider an abstract algebraic semantics based on complete lattices, which subsumes the Boolean (qualitative) semantics and the real-valued robustness (quantitative) semantics. Our semantics also extends to truth values that are partially ordered and allows the modeling of uncertainty in satisfaction. We propose a compositional approach for the construction of online monitors based on a class of infinite-state deterministic signal transducers that (1) are allowed to produce the output signal with some bounded delay relative to the input signal, and (2) do not introduce unbounded variability in the output signal. A key ingredient of our monitoring framework is a novel efficient algorithm for sliding-window aggregation over dense-time signals.
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