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: "caching incentive design in wireless d2d networks a stackelberg game approach"
  Abstract: Caching in wireless device-to-device (D2D) networks can be utilized to offload data traffic during peak times. However, the design of incentive mechanisms is challenging due to the heterogeneous preference and selfish nature of user terminals (UTs). In this paper, we propose an incentive mechanism in which the base station (BS) rewards those UTs that share contents with others using D2D communication. We study the cost minimization problem for the BS and the utility maximization problem for each UT. In particular, the BS determines the rewarding policy to minimize his total cost, while each UT aims to maximize his utility by choosing his caching policy. We formulate the conflict among UTs and the tension between the BS and the UTs as a Stackelberg game. We show the existence of the equilibrium and propose an iterative gradient algorithm (IGA) to obtain the Stackelberg Equilibrium. Extensive simulations are carried out to evaluate the performance of the proposed caching scheme and comparisons are drawn with several baseline caching schemes with no incentives. Numerical results show that the caching scheme under our incentive mechanism outperforms other schemes in terms of the BS serving cost and the utilities of the UTs.

Connected through hyperedge HE-1 (induced by source paper "a personalized preference learning framework for caching in mobile networks"):
  with members:
    - "caching at base stations with heterogeneous user demands and spatial locality"
    - "user preference learning based edge caching for fog radio access network"
    - "on the effects of subpacketization in content centric mobile networks"
    - "how to cache in mobile hybrid iot networks"
    - "caching policy for cache enabled d2d communications by learning user preference"
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "information theoretic caching the multi user case"
    - "a learning based approach to caching in heterogenous small cell networks"

Connected through hyperedge HE-2 (induced by source paper "d2d enabled mobile user edge caching a multi winner auction approach"):
  with members:
    - "d2d big data content deliveries over wireless device to device sharing in large scale mobile networks"
    - "a survey on mobile edge networks convergence of computing caching and communications"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "caching as a service small cell caching mechanism design for service providers"
    - "wireless device to device caching networks basic principles and system performance"
    - "enhancing the physical layer security of non orthogonal multiple access in large scale networks"
    - "a survey on device to device communication in cellular networks"
    - "living on the edge the role of proactive caching in 5g wireless networks"

Connected through hyperedge HE-3 (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"
    - "a stackelberg game for incentive proactive caching mechanisms in wireless networks"
    - "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-4 (induced by source paper "applications of economic and pricing models for resource management in 5g wireless networks a survey"):
  with members:
    - "an auction approach to spectrum management in hetnets"
    - "user association in massive mimo hetnets"
    - "applications of economic and pricing models for wireless network security a survey"
    - "breaking the economic barrier of caching in cellular networks incentives and contracts"
    - "distributed optimization of hierarchical small cell networks a gnep framework"
    - "spectrum and infrastructure sharing in millimeter wave cellular networks an economic perspective"
    - "caching as a service small cell caching mechanism design for service providers"
    - "user association in 5g networks a survey and an outlook"

Connected through hyperedge HE-5 (induced by source paper "incentive mechanism design for cache assisted d2d communications a mobility aware approach"):
  with members:
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "mobility aware caching in d2d networks"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "femtocaching wireless video content delivery through distributed caching helpers"

Connected through hyperedge HE-6 (induced by source paper "breaking the economic barrier of caching in cellular networks incentives and contracts"):
  with members:
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "wireless caching technical misconceptions and business barriers"
    - "optimal geographic caching in cellular networks"
    - "fundamental limits of caching in wireless d2d networks"
    - "content level selective offloading in heterogeneous networks multi armed bandit optimization and regret bounds"
    - "what will 5g be"

Connected through hyperedge HE-7 (induced by source paper "a stackelberg game for incentive proactive caching mechanisms in wireless networks"):
  with members:
    - "cache size allocation in backhaul limited wireless networks"
    - "wireless caching technical misconceptions and business barriers"
    - "wireless content caching for small cell and d2d networks"
    - "towards a marketplace for mobile content dynamic pricing and proactive caching"
    - "living on the edge the role of proactive caching in 5g wireless networks"

Connected through hyperedge HE-8 (induced by source paper "cooperative local caching under heterogeneous file preferences"):
  with members:
    - "content centric sparse multicast beamforming for cache enabled cloud ran"
    - "on the optimality of uncoded cache placement"
    - "an efficient multiple groupcast coded multicasting scheme for finite fractional caching"
    - "adaptive video streaming for wireless networks with multiple users and helpers"
    - "content centric multicast beamforming in cache enabled cloud radio access networks"
    - "fundamental limits of caching in wireless d2d networks"
    - "the throughput outage tradeoff of wireless one hop caching networks"
    - "asymptotic laws for joint content replication and delivery in wireless 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)