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: "internet of things survey on security"
  Abstract: ABSTRACTThe Internet of things (IoT) is intended for ubiquitous connectivity among different entities or “things”. While it provides effective and efficient solutions to many real world challenges,...

Connected through hyperedge HE-1 (induced by source paper "a survey on hardware based security mechanisms for internet of things"):
  with members:
    - "a solution for dynamic spectrum management in mission critical uav networks"
    - "a proof of concept sram based physically unclonable function puf key generation mechanism for iot devices"
    - "ring oscillator and its application as physical unclonable function puf for password management"
    - "overview of blakley s secret sharing scheme"
    - "distributed cooperative spectrum sharing in uav networks using multi agent reinforcement learning"
    - "a reputation based stackelberg game model to enhance secrecy rate in spectrum leasing to selfish iot devices"
    - "a secret key generation scheme for internet of things using ternary states reram based physical unclonable functions"
    - "early warnings of cyber threats in online discussions"

Connected through hyperedge HE-2 (induced by source paper "privacy in internet of things from principles to technologies"):
  with members:
    - "privacy by design framework for assessing internet of things applications and platforms"
    - "on the feasibility of attribute based encryption on internet of things devices"
    - "privacy in the internet of things threats and challenges"
    - "privacy and data protection by design from policy to engineering"
    - "privacy by design in big data an overview of privacy enhancing technologies in the era of big data analytics"
    - "sensing as a service model for smart cities supported by internet of things"
    - "internet of things iot a vision architectural elements and future directions"
    - "privacy design strategies"

Connected through hyperedge HE-3 (induced by source paper "a study on smart online frame forging attacks against video surveillance system"):
  with members:
    - "a microservice enabled architecture for smart surveillance using blockchain technology"
    - "smart surveillance as an edge network service from harr cascade svm to a lightweight cnn"
    - "real time human detection as an edge service enabled by a lightweight cnn"
    - "eiqis toward an event oriented indexable and queryable intelligent surveillance system"

Connected through hyperedge HE-4 (induced by source paper "towards a strategy for supporting the engineering of contemporary software systems"):
  with members:
    - "towards a general software engineering methodology for the internet of things"
    - "enabling high level application development for the internet of things"
    - "internet of things iot a vision architectural elements and future directions"
    - "internet of things applications and challenges in technology and standardization"

Connected through hyperedge HE-5 (induced by source paper "verifying and monitoring iots network behavior using mud profiles"):
  with members:
    - "detection of unauthorized iot devices using machine learning techniques"

Connected through hyperedge HE-6 (induced by source paper "internet of nano things things and everything future growth trends"):
  with members:
    - "applications of blockchain technology beyond cryptocurrency"
    - "challenges of internet of things and big data integration"
    - "application of blockchain in booking and registration systems of securities exchanges"
    - "a recruitment and human resource management technique using blockchain technology for industry 4 0"
    - "mobile academy a ubiquitous mobile learning mlearning platform"
    - "a framework for android based shopping mall applications"
    - "multilingual website usability analysis based on an international user survey"
    - "user interface ui design issues for multilingual users a case study"

Connected through hyperedge HE-7 (induced by source paper "a comparative taxonomy and survey of public cloud infrastructure vendors"):
  with members:
    - "in datacenter performance analysis of a tensor processing unit"
    - "serverless computing current trends and open problems"
    - "ifciot integrated fog cloud iot architectural paradigm for future internet of things"
    - "a manifesto for future generation cloud computing research directions for the next decade"
    - "an analysis of the cloud computing security problem"
    - "tensorflow large scale machine learning on heterogeneous distributed systems"
    - "internet of things iot a vision architectural elements and future directions"

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)