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: "a stackelberg game for incentive proactive caching mechanisms in wireless networks"
  Abstract: In this paper, an incentive proactive cache mechanism in cache-enabled small cell networks (SCNs) is proposed, in order to motivate the content providers (CPs) to participate in the caching procedure. A network composed of a single mobile network operator (MNO) and multiple CPs is considered. The MNO aims to define the price it charges the CPs to maximize its revenue while the CPs compete to determine the number of files they cache at the MNO's small base stations (SBSs) to improve the quality of service (QoS) of their users. This problem is formulated as a Stackelberg game where a single MNO is considered as the leader and the multiple CPs willing to cache files are the followers. The followers game is modeled as a non-cooperative game and both the existence and uniqueness of a Nash equilibrium (NE) are proved. The closed-form expression of the NE which corresponds to the amount of storage each CP requests from the MNO is derived. An optimization problem is formulated at the MNO side to determine the optimal price that the MNO should charge the CPs. Simulation results show that at the equilibrium, the MNO and CPs can all achieve a utility that is up to 50% higher than the cases in which the prices and storage quantities are requested arbitrarily.

Connected through hyperedge HE-1 (induced by source paper "on the effective throughput of coded caching a game theoretic perspective"):
  with members:
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "energy efficiency gains of caching for interference channels"
    - "caching meets millimeter wave communications for enhanced mobility management in 5g networks"
    - "on coded caching in the overloaded miso broadcast channel"
    - "a survey on low latency towards 5g ran core network and caching solutions"
    - "cost optimal caching for d2d networks with user mobility modeling analysis and computational approaches"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "private coded caching"

Connected through hyperedge HE-2 (induced by source paper "edge caching in delay constrained virtualized cellular networks analysis and market"):
  with members:
    - "inter operator infrastructure sharing trade offs and market"
    - "infrastructure sharing for mobile network operators analysis of trade offs and market"
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "caching incentive design in wireless d2d networks a stackelberg game approach"
    - "virtualization of 5g cellular networks as a hierarchical combinatorial auction"
    - "integral approximations for coverage probability"
    - "a tractable approach to coverage and rate in cellular networks"

Connected through hyperedge HE-3 (induced by source paper "a low complexity approach to distributed cooperative caching with geographic constraints"):
  with members:
    - "delivery latency regions in fog rans with edge caching and cloud processing"
    - "spatial multi lru caching for wireless networks with coverage overlaps"
    - "cloud and cache aided wireless networks fundamental latency trade offs"
    - "a utility optimization approach to network cache design"
    - "optimal geographic caching in cellular networks"
    - "fundamental limits of cache aided wireless bc interplay of coded caching and csit feedback"
    - "cache aided interference channels"
    - "cache enabled small cell networks modeling and tradeoffs"

Connected through hyperedge HE-4 (induced by source paper "joint and competitive caching designs in large scale multi tier wireless multicasting networks"):
  with members:
    - "ultra dense edge caching under spatio temporal demand and network dynamics"
    - "random caching based cooperative transmission in heterogeneous wireless networks"
    - "on optimal geographical caching in heterogeneous cellular networks"
    - "caching in wireless small cell networks a storage bandwidth tradeoff"
    - "optimal caching and user association in cache enabled heterogeneous wireless networks"
    - "cache enabled heterogeneous cellular networks comparison and tradeoffs"
    - "optimization and analysis of probabilistic caching in n tier heterogeneous networks"
    - "analysis and optimization of caching and multicasting in large scale cache enabled heterogeneous wireless networks"

Connected through hyperedge HE-5 (induced by source paper "joint caching and pricing strategies for popular content in information centric networks"):
  with members:
    - "echo state networks for proactive caching in cloud based radio access networks with mobile users"
    - "wireless device to device caching networks basic principles and system performance"
    - "a learning based approach to caching in heterogenous small cell networks"
    - "octopus a cooperative hierarchical caching strategy for cloud radio access networks"
    - "collaborative multi bitrate video caching and processing in mobile edge computing networks"
    - "big data meets telcos a proactive caching perspective"
    - "cooperative hierarchical caching in 5g cloud radio access networks c rans"
    - "mean field games for distributed caching in ultra dense small cell 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.IT(Information Theory)