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: "arbitration among vertical services"
  Abstract: A 5G network provides several service types, tailored to specific needs such as high bandwidth or low latency. On top of these communication services, verticals are enabled to deploy their own vertical services. These vertical service instances compete for the resources of the underlying common infrastructure. We present a resource arbitration approach that allows to handle such resource conflicts on a high level and to provide guidance to lowerlevel orchestration components.

Connected through hyperedge HE-1 (induced by source paper "reducing service deployment cost through vnf sharing"):
  with members:
    - "getting the most out of your vnfs flexible assignment of service priorities in 5g"
    - "resource orchestration of 5g transport networks for vertical industries"
    - "optimal virtual network function placement in multi cloud service function chaining architecture"
    - "network slicing based 5g and future mobile networks mobility resource management and challenges"
    - "network slicing to enable scalability and flexibility in 5g mobile networks"

Connected through hyperedge HE-2 (induced by source paper "getting the most out of your vnfs flexible assignment of service priorities in 5g"):
  with members:
    - "resource orchestration of 5g transport networks for vertical industries"
    - "optimal virtual network function placement in multi cloud service function chaining architecture"
    - "network slicing based 5g and future mobile networks mobility resource management and challenges"
    - "network slicing to enable scalability and flexibility in 5g mobile networks"

Connected through hyperedge HE-3 (induced by source paper "service shifting a paradigm for service resilience in 5g"):
  with members:
    - "vnf placement and resource allocation for the support of vertical services in 5g networks"
    - "jasper joint optimization of scaling placement and routing of virtual network services"
    - "network slicing based 5g and future mobile networks mobility resource management and challenges"
    - "network slicing to enable scalability and flexibility in 5g mobile networks"

Connected through hyperedge HE-4 (induced by source paper "vnf placement and resource allocation for the support of vertical services in 5g networks"):
  with members:
    - "optimal virtual network function placement in multi cloud service function chaining architecture"
    - "network slicing based 5g and future mobile networks mobility resource management and challenges"
    - "modeling and dimensioning of a virtualized mme for 5g mobile networks"
    - "network slicing to enable scalability and flexibility in 5g mobile networks"

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)