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: "definition of internet of things iot cyber risk discussion on a transformation roadmap for standardisation of regulations risk maturity strategy design and impact assessment"
  Abstract: A comparative empirical analysis is performed to define a high-level potential target state followed by a high-level transformation roadmap, describing how company can achieve their target state, based on their current state. The transformation roadmap is used to adapt the Goal-Oriented Approach and the IoT Micro Mart model.

Connected through hyperedge HE-1 (induced by source paper "future developments in standardisation of cyber risk in the internet of things iot"):
  with members:
    - "a reference architecture for integrating the industrial internet of things in the industry 4 0"
    - "sonification in security operations centres what do security practitioners think"
    - "if you can t understand it you can t properly assess it the reality of assessing security risks in internet of things systems"
    - "economic impact of iot cyber risk analysing past and present to predict the future developments in iot risk analysis and iot cyber insurance"
    - "future developments in cyber risk assessment for the internet of things"
    - "security risk assessment in internet of things systems"
    - "a cyber physical system based approach for industrial automation 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)