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: "controlling robots using artificial intelligence and a consortium blockchain"
  Abstract: Blockchain is a disruptive technology that is normally used within financial applications, however it can be very beneficial also in certain robotic contexts, such as when an immutable register of events is required. Among the several properties of Blockchain that can be useful within robotic environments, we find not just immutability but also decentralization of the data, irreversibility, accessibility and non-repudiation. In this paper, we propose an architecture that uses blockchain as a ledger and smart-contract technology for robotic control by using external parties, Oracles, to process data. We show how to register events in a secure way, how it is possible to use smart-contracts to control robots and how to interface with external Artificial Intelligence algorithms for image analysis. The proposed architecture is modular and can be used in multiple contexts such as in manufacturing, network control, robot control, and others, since it is easy to integrate, adapt, maintain and extend to new domains.

Connected through hyperedge HE-1 (induced by source paper "towards blockchain based multi agent robotic systems analysis classification and applications"):
  with members:
    - "a reference architecture for smart and software defined buildings"
    - "interacting with the internet of things using smart contracts and blockchain technologies"
    - "blockchain solutions for multi agent robotic systems related work and open questions"
    - "towards the internet of robotic things analysis architecture components and challenges"
    - "robochain a secure data sharing framework for human robot interaction"
    - "an architecture for distributed ledger based m2m auditing for electric autonomous vehicles"
    - "smart contracts for multiagent plan execution in untrusted cyber physical systems"
    - "towards blockchain based robonomics autonomous agents behavior validation"

Connected through hyperedge HE-2 (induced by source paper "towards the uses of blockchain in mobile health services and applications a survey"):
  with members:
    - "a scalable verification solution for blockchains"
    - "an overview of blockchain integration with robotics and artificial intelligence"
    - "a microservice enabled architecture for smart surveillance using blockchain technology"
    - "a survey on the security of blockchain systems"
    - "blockchain and artificial intelligence"
    - "blockchain for cities a systematic literature review"
    - "decentralized applications the blockchain empowered software system"
    - "secure outsourced calculations with homomorphic encryption"

Connected through hyperedge HE-3 (induced by source paper "blockchain solutions for multi agent robotic systems related work and open questions"):
  with members:
    - "a reference architecture for smart and software defined buildings"
    - "robochain a secure data sharing framework for human robot interaction"
    - "smart contracts for multiagent plan execution in untrusted cyber physical systems"
    - "towards blockchain based robonomics autonomous agents behavior validation"
    - "the blockchain a new framework for robotic swarm systems"

Connected through hyperedge HE-4 (induced by source paper "a time segmented consortium blockchain for robotic event registration"):
  with members:
    - "robochain a secure data sharing framework for human robot interaction"
    - "towards blockchain based robonomics autonomous agents behavior validation"
    - "the blockchain a new framework for robotic swarm 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.RO(Robotics)