@ARTICLE{9312971,  author={Tiwari, Minu and Misra, Sudip and Bishoyi, Pradyumna Kumar and Yang, Laurence T.},  journal={IEEE Internet of Things Journal},   title={Devote: Criticality-Aware Federated Service Provisioning in Fog-Based IoT Environments},   year={2021},  volume={8},  number={13},  pages={10631-10638},  doi={10.1109/JIOT.2021.3049326}}