| Abstract: |
Different fault reasoning techniques are used in fault localization for either
deterministic or probabilistic fault causality model. Symptom-Fault map is
commonly used to describe Symptom-Fault causality in fault reasoning. However
lost and spurious symptoms severely affect both performance and accuracy of
fault reasoning. In this paper, we propose an extended Symptom-Fault-Action
model to incorporate actions into fault reasoning process to tackle the above
problem. Simulation study shows both performance and accuracy of fault reasoning
can be greatly improved by taking actions, especially when the rate of spurious
and lost symptoms is high. |