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: "content based traffic engineering in software defined information centric networks"
  Abstract: This paper describes a content centric network architecture which uses software defined networking principles to implement efficient metadata driven services by extracting content metadata at the network layer. The ability to access content metadata transparently enables a number of new services in the network. Specific examples discussed here include: a metadata driven traffic engineering scheme which uses prior knowledge of content length to optimize content delivery, a metadata driven content firewall which is more resilient than traditional firewalls and differentiated treatment of content based on the type of content being accessed. A detailed outline of an implementation of the proposed architecture is presented along with some basic evaluation.

Connected through hyperedge HE-1 (induced by source paper "exploiting network awareness to enhance dash over wireless"):
  with members:
    - "contentflow mapping content to flows in software defined networks"
    - "on the interaction of adaptive video streaming with content centric networking"

Connected through hyperedge HE-2 (induced by source paper "a stable fountain code mechanism for peer to peer content distribution"):
  with members:
    - "on the benefit of information centric networks for traffic engineering"
    - "contentflow mapping content to flows in software defined networks"
    - "on the interaction of adaptive video streaming with content centric networking"
    - "can p2p networks be super scalable"
    - "network coding meets information centric networking"
    - "on the stability of two chunk file sharing systems"
    - "stability of a peer to peer communication system"
    - "the missing piece syndrome in peer to peer communication"

Connected through hyperedge HE-3 (induced by source paper "on the benefit of information centric networks for traffic engineering"):
  with members:
    - "contentflow mapping content to flows in software defined networks"
    - "review a critical look at power law modelling of the internet"

Connected through hyperedge HE-4 (induced by source paper "information centric networking over sdn and openflow architectural aspects and experiments on the ofelia testbed"):
  with members:
    - "contentflow mapping content to flows in software defined networks"
    - "content as a network primitive"

Connected through hyperedge HE-5 (induced by source paper "on the interaction of adaptive video streaming with content centric networking"):
  with members:
    - "contentflow mapping content to flows in software defined networks"
    - "exploring the memory bandwidth tradeoff in an information centric network"

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)