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: "coap over icn"
  Abstract: The Constrained Application Protocol (CoAP) is a specialized Web transfer protocol for resource-oriented applications intended to run on constrained devices, typically part of the Internet of Things. In this paper we leverage Information-Centric Networking (ICN), deployed within the domain of a network provider that interconnects, in addition to other terminals, CoAP endpoints in order to provide enhanced CoAP services. We present various CoAP-specific communication scenarios and discuss how ICN can provide benefits to both network providers and CoAP applications, even though the latter are not aware of the existence of ICN. In particular, the use of ICN results in smaller state management complexity at CoAP endpoints, simpler implementation at CoAP endpoints, and less communication overhead in the network.

Connected through hyperedge HE-1 (induced by source paper "ndn coap and mqtt a comparative measurement study in the iot"):
  with members:
    - "a survey of communication protocols for internet of things and related challenges of fog and cloud computing integration"
    - "hopp robust and resilient publish subscribe for an information centric internet of things"
    - "connecting the world of embedded mobiles the riot approach to ubiquitous networking for the internet of things"
    - "observing iot resources over icn"
    - "adn an information centric networking architecture for the internet of things"
    - "icn enabling coap extensions for ip based iot devices"
    - "information centric networking in the iot experiments with ndn in the wild"
    - "backscatter from the data plane threats to stability and security in information centric network infrastructure"

Connected through hyperedge HE-2 (induced by source paper "observing iot resources over icn"):
  with members:
    - "architecting information centric etsi m2m systems"
    - "information centric networking in the iot experiments with ndn in the wild"

Connected through hyperedge HE-3 (induced by source paper "edge icn and its application to the internet of things"):
  with members:
    - "stateless multicast switching in software defined networks"
    - "architecting information centric etsi m2m systems"

Connected through hyperedge HE-4 (induced by source paper "icn enabling coap extensions for ip based iot devices"):
  with members:
    - "observing iot resources over icn"

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.NI(Networking and Internet Architecture)