bibtex

@article{BCO+1,
    title = { Generation and verification of learned stochastic automata using k-NN and statistical model checking },
    author = {Baouya, Abdelhakim and Chedida, Salim and Ouchani, Samir and Bensalem, Saddek and Bozga, Marius},
    month = {Nov},
    year = {2021},
    journal = {Applied Intelligence},
    team = {RSD},
    day = {09},
    abstract = {Deriving an accurate behavior model from historical data of a black box for verification and feature forecasting is seen by industry as a challenging issue especially for a large featured dataset. This paper focuses on an alternative approach where stochastic automata can be learned from time-series observations captured from a set of deployed sensors. The main advantage offered by such techniques is that they enable analysis and forecasting from a formal model instead of traditional learning methods. We perform statistical model checking to analyze the learned automata by expressing temporal properties. For this purpose, we consider a critical water infrastructure that provides a scenario based on a set of input and output values of heterogeneous sensors to regulate the dam spill gates. The method derives a consistent approximate model with traces collected over thirty years. The experiments show that the model provides not only an approximation of the desired output of a feature value but, also, forecasts the ebb and flow of the sensed data.},
}

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