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- W4242204759 abstract "Safety-critical systems must always have predictable and reliable behavior, otherwise systems fail and lives are put at risk. Even with the most rigorous testing it is impossible to test systems using all possible inputs. Anomaly detection has been proposed as a technique for improving the fault tolerance of safety-critical systems. Past work, however, has been largely limited to behavioral parameter thresholds that miss many kinds of system deviations. Here we propose a novel approach to anomaly detection in fault-tolerant safety critical systems using patterns of messages between threads. This approach is based on techniques originally developed for detecting security violations on systems with UNIX-like system call APIs; here we show that they can be adapted to the constraints of safety critical microkernel-based hard real-time systems. We present the design, implementation, and initial evaluation of tH (thread Homeostasis) implemented on a QNX-based self-driving car platform." @default.
- W4242204759 created "2022-05-12" @default.
- W4242204759 creator A5004835986 @default.
- W4242204759 date "2020-03-05" @default.
- W4242204759 modified "2023-09-27" @default.
- W4242204759 title "Thread Homeostasis - Real-Time Anomalous Behavior Detection Using Short Sequences of Messages for Safety-Critical Software" @default.
- W4242204759 doi "https://doi.org/10.22215/etd/2019-13987" @default.
- W4242204759 hasPublicationYear "2020" @default.
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