human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "towards bounded synthesis of resilient supervisors against actuator attacks"
  Abstract: In this work, we study the safety approach of synthesizing resilient supervisors against actuator attacks, for cyber-physical systems that can be modeled as discrete-event systems. A constraint based approach for the bounded synthesis of resilient supervisors is developed. The supervisor obfuscation problem, which is proposed in a specific setting of actuator attack, can be naturally modeled and solved using the same approach.

Connected through hyperedge HE-1 (induced by source paper "synthesis of actuator attackers for free"):
  with members:
    - "attack resilient supervisory control of discrete event systems"
    - "supervisor obfuscation against actuator enablement attack"
    - "detection and mitigation of classes of attacks in supervisory control systems"
    - "supervisory control of discrete event systems under attacks"
    - "a formal approach to cyber physical attacks"
    - "supervisor synthesis to thwart cyber attack with bounded sensor reading alterations"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.SY(Systems and Control)