Non-convex hull based anomaly detection in CPPS
P. Li, O. Niggemann, Engineering Applications of Artificial Intelligence 87 (2019).

Why Symbolic AI is a Key Technology for Self-Adaption in the Context of CPPS
A. Bunte, P. Wunderlich, N. Moriz, P. Li, A. Mankowski, A. Rogalla, O. Niggemann, in: 24nd IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), Zaragoza, Spain, 2019.

Cross-Network Fusion and Scheduling for Heterogeneous Networks in Smart Factory
J. Wan, J. Yang, S. Wang, D. Li, P. Li, M. Xia, IEEE Transactions on Industrial Informatics 16 (2019) 6059–6068.

Mapping Data Sets to Concepts Using Machine Learning and a Knowledge Based Approach
A. Bunte, P. Li, O. Niggemann, in: International Conference on Agents and Artificial Intelligence (ICAART), SCITEPRESS, Madeira, Portugal, 2018.

Learned Abstraction: Knowledge Based Concept Learning for Cyber Physical Systems
A. Bunte, P. Li, O. Niggemann, in: 3rd Conference on Machine Learning for Cyber Physical Systems and Industry 4.0 (ML4CPS), 2017.