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: "price differentiation for communication networks"
  Abstract: We study the optimal usage-based pricing problem in a resource-constrained network with one profit-maximizing service provider and multiple groups of surplus-maximizing users. With the assumption that the service provider knows the utility function of each user (thus complete information), we find that the complete price differentiation scheme can achieve a large revenue gain (e.g., 50%) compared to no price differentiation, when the total network resource is comparably limited and the high willingness to pay users are minorities. However, the complete price differentiation scheme may lead to a high implementational complexity. To trade off the revenue against the implementational complexity, we further study the partial price differentiation scheme, and design a polynomial-time algorithm that can compute the optimal partial differentiation prices. We also consider the incomplete information case where the service provider does not know which group each user belongs to. We show that it is still possible to realize price differentiation under this scenario, and provide the sufficient and necessary condition under which an incentive compatible differentiation scheme can achieve the same revenue as under complete information.

Connected through hyperedge HE-1 (induced by source paper "how to price fresh data"):
  with members:
    - "economics of age of information management under network externalities"
    - "timely updates in energy harvesting two hop networks offline and online policies"
    - "dynamic pricing for controlling age of information"
    - "a dynamic jamming game for real time status updates"
    - "joint status sampling and updating for minimizing age of information in the internet of things"
    - "optimizing information freshness in wireless networks under general interference constraints"
    - "on the role of age of information in internet of things"
    - "age minimal transmission for energy harvesting sensors with finite batteries online policies"

Connected through hyperedge HE-2 (induced by source paper "the economics of video websites with membership advertising mode in wireless networks"):
  with members:
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "auction based coopetition between lte unlicensed and wi fi"
    - "joint caching and pricing strategies for popular content in information centric networks"
    - "motivating smartphone collaboration in data acquisition and distributed computing"
    - "what will 5g be"
    - "five disruptive technology directions for 5g"
    - "price based resource allocation for spectrum sharing femtocell networks a stackelberg game approach"

Connected through hyperedge HE-3 (induced by source paper "hybrid pricing for mobile collaborative internet access"):
  with members:
    - "economic analysis of crowdsourced wireless community networks"
    - "efficient and fair collaborative mobile internet access"
    - "incentive design and market evolution of mobile user provided networks"
    - "exchange of services in networks competition cooperation and fairness"
    - "an axiomatic theory of fairness in network resource allocation"

Connected through hyperedge HE-4 (induced by source paper "economic analysis of crowdsourced wireless community networks"):
  with members:
    - "a game theoretic analysis of user behaviors in crowdsourced wireless community networks"
    - "bargaining based mobile data offloading"

Connected through hyperedge HE-5 (induced by source paper "resource allocation with reverse pricing for communication networks"):
  with members:
    - "asymmetric valued spectrum auction and competition in wireless broadband services"
    - "game theoretic understanding of price dynamics in mobile communication services"

Connected through hyperedge HE-6 (induced by source paper "viability of reverse pricing in cellular networks a new outlook on resource management"):
  with members:
    - "traffic convexity aware cellular networks a nomadic heavy user perspective"
    - "game theoretic understanding of price dynamics in mobile communication services"

Connected through hyperedge HE-7 (induced by source paper "technology choices and pricing policies in public and private wireless networks"):
  with members:
    - "user subscription revenue maximization and competition in communications markets"
    - "competition of wireless providers for atomic users"

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)