human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "state of the art of cyber physical systems security an automatic control perspective"):
  Abstract: Cyber-physical systems are integrations of computation, networking, and physical processes. Due to the tight cyber-physical coupling and to the potentially disrupting consequences of failures, security here is one of the primary concerns. Our systematic mapping study sheds light on how security is actually addressed when dealing with cyber-physical systems from an automatic control perspective. The provided map of 138 selected studies is defined empirically and is based on, for instance, application fields, various system components, related algorithms and models, attacks characteristics and defense strategies. It presents a powerful comparison framework for existing and future research on this hot topic, important for both industry and academia.

Includes members:
  Member "on redundant observability from security index to attack detection and resilient state estimation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "secure state estimation with byzantine sensors a probabilistic approach")
  Member "detection of sensor attack and resilient state estimation for uniformly observable nonlinear systems having redundant sensors":
    also connected through other hyperedges:
      (none)
  Member "analysis of stochastic switched systems with application to networked control under jamming attacks":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "randomized transmission protocols for protection against jamming attacks in multi agent consensus")
  Member "coding schemes for securing cyber physical systems against stealthy data injection attacks":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "robust sensor design against multiple attackers with misaligned control objectives")
  Member "detecting integrity attacks on control systems using a moving target approach":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "a moving target defense for securing cyber physical systems")
  Member "a moving horizon hybrid stochastic game for secure control of cyber physical systems":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "coding schemes for securing cyber physical systems against stealthy data injection attacks")
  Member "modeling and performance evaluation of stealthy false data injection attacks on smart grid in the presence of corrupted measurements":
    also connected through other hyperedges:
      (none)
  Member "state estimation with secrecy against eavesdroppers":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "distorting an adversary s view in cyber physical systems")

Question: Please tell me which class the source paper 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)