Research
- Systems Security in Decentraliased and Cloud/Edge Platforms
- My research focuses on strengthening the security of decentralised and cloud/edge-based systems through anomaly detection that adapts to concept drift and adversarial behaviours. A key strand of this work extends to blockchain forensics, where anomaly detection techniques are applied to identify scams, fraud , and other illicit activities embedded in transaction networks. By combining adaptive detection with system-level monitoring, my aim is to enhance trust and resilience in large-scale, dynamic infrastructures.
- Distributed Systems Reliability and Performance
- I investigate how distributed systems maintain reliability and scalability in the presence of faults and adversarial threats. My research focuses on (1) consensus protocols for blockchain and distributed environments that must balance security, throughput, and energy efficiency, while also enabling forensic visibility to support fraud and scam detection; and (2) fault-tolerance mechanisms for stream-processing frameworks that ensure consistent low-latency analytics under failures.
A Query Language to Enhance Security and Privacy of Blockchain as a Service (BaaS)., ICSOC, 2024.
A Predictive Profiling and Performance Modeling Approach for Distributed Stream Processing in Edge., ICDE, 2024.
ERT: Data Placement based on Estimated Response Time for P2P Storage Systems., JPDC, 2024.
- RADAR: Reactive Concept Drift Management with Robust Variational Inference for Evolving IoT Data Streams. ICDE, 2023
SAZyzz: Scaling AZyzzyva to meet blockchain requirements. TSC, 2023.
Blockchain-based federated learning for securing internet of things: A comprehensive survey. ACM Computing Surveys.
Wael Issa, Nour Moustafa, Benjamin Turnbull, Nasrin Sohrabi, Zahir Tari, Albert Y Zomaya "VIFL: vulnerability identification using federated learning in the internet of things systems."Journal of Computing 2025 [link]
Nasrin Sohrabi, Norrathep Rattanavipanon, Zahir Tari "A query language to enhance security and privacy of Blockchain as a Service (BaaS)."ICSOC2024 [link]
Hasan Geren, Nasrin Sohrabi, Zahir Tari, Nour Moustafa "A Predictive Profiling and Performance Modeling Approach for Distributed Stream Processing in Edge."ICDE2024 [link]
Fitrio Pakana, Nasrin Sohrabi, Hai Dong, Zahir Tari, Nour Moustafa "ERT: Data Placement based on Estimated Response Time for P2P Storage Systems."JPDC2024 [link]
J. Ahmed Abdella, Z. Tari, Nasrin Sohrabi, R. Mahmud. "MuLCOff: A multi-layer consensus and off-chain computation for efficient and privacy-aware blockchain-based peer-to-peer energy trading." IEEE Network. [link]
Z. Tari Nasrin Sohrabi, Yasaman Samadi, Jakapan Suaboot. "Data Exfiltration Threats and Prevention Techniques: Machine Learning and Memory-based Data Security." Wiley Publisher.
V. Huang, G. Chen, X. Zuo, A. Y Zomaya, Nasrin Sohrabi, Z. Tari, Q. Fu. "Request dispatching over distributed SDN control plane: a multiagent approach."IEEE Transactions on Cybernetics.
F. Pakana, Nasrin Sohrabi, C. Xu, Z. Tari, H. Dong. "RPDP: An Efficient Data Placement based on Residual Performance for P2P Storage Systems."arXiv preprint arXiv:2304.08692. [link]
Q. Xiong, Nasrin Sohrabi, H. Dong, C. Xu, Z. Tari."AICons: An AI-Enabled Consensus Algorithm Driven by Energy Preservation and Fairness."arXiv preprint arXiv:2304.08128 [link]
A. Alsaedi, Nasrin Sohrabi , R. Mahmud, Z. Tari. "RADAR: Reactive Concept Drift Management with Robust Variational Inference for Evolving IoT Data Streams."2023 IEEE 39th International Conference on Data Engineering (ICDE) [link]
W. Issa, N. Moustafa, B. Turnbull, Nasrin Sohrabi, Z. Tari. "Blockchain-based federated learning for securing internet of things: A comprehensive survey"ACM Computing Surveys. [link]
Nasrin Sohrabi, N. Rattanavipanon, Z. TariarXiv preprint arXiv:2212.14141 [link]
J. Abdella, Z. Tari, R. Mahmud, Nasrin Sohrabi, A. Anwar, A Mahmood. "Hicoob: Hierarchical concurrent optimistic blockchain consensus protocol for peer-to-peer energy trading systems"IEEE Transactions on Smart Grid [link]
Nasrin Sohrabi, Z. Tari, G. Voron, V. Gramoli, Q. Fu. "SAZyzz: Scaling AZyzzyva to meet blockchain requirements."IEEE Transactions on Services Computing [link]
A. Oseni, N. Moustafa, G. Creech, Nasrin Sohrabi, A. Strelzoff, Z. Tari, I. Linkov. "An explainable deep learning framework for resilient intrusion detection in IoT-enabled transportation networks." IEEE Transactions on Intelligent Transportation Systems [link]
F. Al-Doghman, N. Moustafa, I. Khalil, Nasrin Sohrabi, Z. Tari, A. Y Zomaya. "AI-enabled secure microservices in edge computing: Opportunities and challenges."IEEE Transactions on Services Computing [link]
Nasrin Sohrabi, Z. Tari. "ZyConChain: A Scalable Blockchain for General Applications." IEEE Access. [link]
Nasrin Sohrabi, Z. Tari. "On the scalability of blockchain systems." 2020 IEEE International Conference on Cloud Engineering (IC2E). [link]
Nasrin Sohrabi, X. Yi, Z. Tari, I. Khalil. "BACC: Blockchain-based access control for cloud data." 2020 IEEE International Conference on Cloud Engineering (IC2E). [link]
D. Alsadie, E. J Alzahrani, Nasrin Sohrabi, Z. Tari, A. Y Zomaya. "DTFA: a dynamic threshold-based fuzzy approach for power-efficient VM consolidation." 2018 IEEE 17th International Symposium on Network Computing and Applications (NCA).