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: "cyber physical systems security a survey"
  Abstract: With the exponential growth of cyber-physical systems (CPS), new security challenges have emerged. Various vulnerabilities, threats, attacks, and controls have been introduced for the new generation of CPS. However, there lack a systematic study of CPS security issues. In particular, the heterogeneity of CPS components and the diversity of CPS systems have made it very difficult to study the problem with one generalized model. #R##N#In this paper, we capture and systematize existing research on CPS security under a unified framework. The framework consists of three orthogonal coordinates: (1) from the \emph{security} perspective, we follow the well-known taxonomy of threats, vulnerabilities, attacks and controls; (2)from the \emph{CPS components} perspective, we focus on cyber, physical, and cyber-physical components; and (3) from the \emph{CPS systems} perspective, we explore general CPS features as well as representative systems (e.g., smart grids, medical CPS and smart cars). The model can be both abstract to show general interactions of a CPS application and specific to capture any details when needed. By doing so, we aim to build a model that is abstract enough to be applicable to various heterogeneous CPS applications; and to gain a modular view of the tightly coupled CPS components. Such abstract decoupling makes it possible to gain a systematic understanding of CPS security, and to highlight the potential sources of attacks and ways of protection.

Connected through hyperedge HE-1 (induced by source paper "can t boil this frog robustness of online trained autoencoder based anomaly detectors to adversarial poisoning attacks"):
  with members:
    - "efficient cyber attacks detection in industrial control systems using lightweight neural networks"
    - "real time evasion attacks with physical constraints on deep learning based anomaly detectors in industrial control systems"
    - "deep learning for anomaly detection a survey"
    - "intrusion detection for industrial control systems evaluation analysis and adversarial attacks"
    - "manipulating machine learning poisoning attacks and countermeasures for regression learning"
    - "poison frogs targeted clean label poisoning attacks on neural networks"
    - "adversarial regression for detecting attacks in cyber physical systems"
    - "a deep learning based framework for conducting stealthy attacks in industrial control systems"

Connected through hyperedge HE-2 (induced by source paper "securing vehicle to everything v2x communication platforms"):
  with members:
    - "survey on misbehavior detection in cooperative intelligent transportation systems"
    - "a security credential management system for v2x communications"
    - "security in automotive networks lightweight authentication and authorization"
    - "analyzing attacks on cooperative adaptive cruise control cacc"
    - "enhanced position verification for vanets using subjective logic"
    - "efficient detection of sybil attack based on cryptography in vanet"
    - "secure vehicular communication systems implementation performance and research challenges"

Connected through hyperedge HE-3 (induced by source paper "securing autonomous service robots through fuzzing detection and mitigation"):
  with members:
    - "robot hazards from safety to security"
    - "dr0wned cyber physical attack with additive manufacturing"
    - "to make a robot secure an experimental analysis of cyber security threats against teleoperated surgical robots"

Connected through hyperedge HE-4 (induced by source paper "testing and verification of neural network based safety critical control software a systematic literature review"):
  with members:
    - "visual analytics in deep learning an interrogative survey for the next frontiers"
    - "local rule based explanations of black box decision systems"
    - "deepgauge multi granularity testing criteria for deep learning systems"
    - "experimental resilience assessment of an open source driving agent"
    - "interpreting deep classifier by visual distillation of dark knowledge"
    - "dlfuzz differential fuzzing testing of deep learning systems"
    - "software engineering challenges of deep learning"
    - "feature squeezing detecting adversarial examples in deep neural networks"

Connected through hyperedge HE-5 (induced by source paper "a roadmap toward the resilient internet of things for cyber physical systems"):
  with members:
    - "model based verification and validation of an autonomous vehicle system"
    - "deepmarks a digital fingerprinting framework for deep neural networks"
    - "mlcapsule guarded offline deployment of machine learning as a service"
    - "reachability analysis and safety verification for neural network control systems"
    - "introduction of a hybrid monitor to cyber physical systems"
    - "verification for machine learning autonomy and neural networks survey"
    - "re purposing compact neuronal circuit policies to govern reinforcement learning tasks"
    - "efficient deep learning on multi source private data"

Connected through hyperedge HE-6 (induced by source paper "explainable software for cyber physical systems es4cps report from the gi dagstuhl seminar 19023 january 06 11 2019 schloss dagstuhl"):
  with members:
    - "formal specification and verification of autonomous robotic systems a survey"
    - "the orca hub explainable offshore robotics through intelligent interfaces"
    - "introducing liveness into multi lane spatial logic lane change controllers using uppaal"
    - "explainable security"
    - "explain yourself a natural language interface for scrutable autonomous robots"
    - "rapid quality assurance with requirements smells"
    - "imperfect knowledge in autonomous urban traffic manoeuvres"
    - "causes and explanations a structural model approach part ii explanations"

Connected through hyperedge HE-7 (induced by source paper "achieving ethical algorithmic behaviour in the internet of things a review"):
  with members:
    - "clarifying trust in social internet of things"
    - "society in the loop programming the algorithmic social contract"
    - "building ethics into artificial intelligence"
    - "on a formal model of safe and scalable self driving cars"
    - "cognitive internet of things a new paradigm beyond connection"

Connected through hyperedge HE-8 (induced by source paper "robust sensor design against multiple attackers with misaligned control objectives"):
  with members:
    - "secure sensor design against undetected infiltration minimum impact minimum damage"
    - "coding schemes for securing cyber physical systems against stealthy data injection attacks"
    - "hierarchical multistage gaussian signaling games in noncooperative communication and control systems"

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.CR(Cryptography and Security)