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 an open standard for assessing the severity of robot security vulnerabilities the robot vulnerability scoring system rvss"
  Abstract: Robots are typically not created with security as a main concern. Contrasting to typical IT systems, cyberphysical systems rely on security to handle safety aspects. In light of the former, classic scoring methods such as the Common Vulnerability Scoring System (CVSS) are not able to accurately capture the severity of robot vulnerabilities. The present research work focuses upon creating an open and free to access Robot Vulnerability Scoring System (RVSS) that considers major relevant issues in robotics including a) robot safety aspects, b) assessment of downstream implications of a given vulnerability, c) library and third-party scoring assessments and d) environmental variables, such as time since vulnerability disclosure or exposure on the web. Finally, an experimental evaluation of RVSS with contrast to CVSS is provided and discussed with focus on the robotics security landscape.

Connected through hyperedge HE-1 (induced by source paper "industrial robot ransomware akerbeltz"):
  with members:
    - "introducing the robot vulnerability database rvd"
    - "robot hazards from safety to security"
    - "introducing the robot security framework rsf a standardized methodology to perform security assessments in robotics"

Connected through hyperedge HE-2 (induced by source paper "introducing the robot vulnerability database rvd"):
  with members:
    - "robot hazards from safety to security"

Connected through hyperedge HE-3 (induced by source paper "robotics ctf rctf a playground for robot hacking"):
  with members:
    - "adding salt to pepper a structured security assessment over a humanoid robot"
    - "scanning the internet for ros a view of security in robotics research"
    - "robot hazards from safety to security"
    - "introducing the robot security framework rsf a standardized methodology to perform security assessments in robotics"
    - "sros securing ros over the wire in the graph and through the kernel"

Connected through hyperedge HE-4 (induced by source paper "aztarna a footprinting tool for robots"):
  with members:
    - "scanning the internet for ros a view of security in robotics research"
    - "robot hazards from safety to security"
    - "robotics ctf rctf a playground for robot hacking"
    - "introducing the robot security framework rsf a standardized methodology to perform security assessments in robotics"

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.RO(Robotics)