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: "dynamic profit maximization of cognitive mobile virtual network operator"
  Abstract: We study the profit maximization problem of a cognitive virtual network operator in a dynamic network environment. We consider a downlink OFDM communication system with various network dynamics, including dynamic user demands, uncertain sensing spectrum resources, dynamic spectrum prices, and time-varying channel conditions. In addition, heterogenous users and imperfect sensing technology are incorporated to make the network model more realistic. By exploring the special structural of the problem, we develop a low-complexity on-line control policies that determine pricing and resource scheduling without knowing the statistics of dynamic network parameters. We show that the proposed algorithms can achieve arbitrarily close to the optimal profit with a proper trade-off with the queuing delay.

Connected through hyperedge HE-1 (induced by source paper "feasibility architecture and cost considerations of using tvws for rural internet access in 5g"):
  with members:
    - "toward enabling broadband for a billion plus population with tv white spaces"
    - "5g ultra dense cellular networks"
    - "comparative performance analysis of wireless communication protocols for intelligent sensors and their applications"
    - "femtocell networks a survey"

Connected through hyperedge HE-2 (induced by source paper "spectrum investment under uncertainty a behavioral economics perspective"):
  with members:
    - "prospect pricing in cognitive radio networks"
    - "understanding mobile traffic patterns of large scale cellular towers in urban environment"
    - "integrating energy storage into the smart grid a prospect theoretic approach"
    - "evolutionarily stable spectrum access"
    - "investment and pricing with spectrum uncertainty a cognitive operator s perspective"

Connected through hyperedge HE-3 (induced by source paper "dynamic spectrum leasing with two sellers"):
  with members:
    - "uncertain price competition in a duopoly with heterogeneous availability"
    - "investment and pricing with spectrum uncertainty a cognitive operator s perspective"

Connected through hyperedge HE-4 (induced by source paper "imitation based social spectrum sharing"):
  with members:
    - "database assisted distributed spectrum sharing"
    - "investment and pricing with spectrum uncertainty a cognitive operator s perspective"
    - "let cognitive radios imitate imitation based spectrum access for cognitive radio networks"
    - "adaptive channel allocation spectrum etiquette for cognitive radio networks"
    - "a quantitative measure of fairness and discrimination for resource allocation in shared computer 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.NI(Networking and Internet Architecture)